antiinfectives Flashcards

(248 cards)

1
Q

actually kills the bacteria

A

bactericidal

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2
Q

stops bacteria from reproducing

A

bacteriostatic

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3
Q

Key Actions Prior to Administration

A

Culture
Susceptibility
Location of administration of medication

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4
Q

how many blood cultures do you obtain?

A

two, an aerobic and anaerobic set

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5
Q

best to get blood cultures ____ and to get them from ______ different locations

A

X2, two

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6
Q

this bottle is the burgundy/red cap

A

anaerobic

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7
Q

this bottle has the blue cap

A

aerobic

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8
Q

What are four problems with antiinfectives?

A

overuse
non-compliance
cost of meds
allergies

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9
Q

____________ leads to antibiotic resistant bacteria

A

non compliance

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10
Q

For all anti-infectives, what do you need to assess, obtain, and know before and after administering them? (x6)

A

baseline vitals
assess allergies
infection history (include s/s) (repeated pneumonia that doesn’t work with certain medications for ex.)
culture and sensitivity
assess for adverse reactions
assess knowledge of medication

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11
Q

What do you need to teach/educate your patients about?

A

Take as prescribed and complete entire regimen
Report unusual reactions such as rash, fever or chills
Check expiration date prior to taking it
Store it correctly
**If using hormonal contraceptives, use additional form of contraceptive during therapy
Don’t stop taking the drug even if symptoms are relieved
Don’t take left over medications or someone else’s medicine
Don’t take any other medications with them without checking with prescriber
Take on an empty stomach
Take with full glass of water
Signs of superinfection
Notify prescriber if s/s don’t improve
Drink plenty of fluids to prevent crystalluria

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12
Q

S/S: black furry growth on tongue, vaginal itching or discharge, loose or foul-smelling stools, mouth ulcers, fever, malaise, muscle aches

A

superinfection s/s

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13
Q
A

crystalluria

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14
Q

_____ often looks like ____

A

crystalluria often looks like wheat

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15
Q

Reddish-purple rash that causes upper layers of skin to die off

A

Stevens-Johnson syndrome

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16
Q

What are the effects of Stevens-Johnson syndrome?

A

Swelling of tongue, face, pain, sloughing of skin, blisters in mouth, nose, eyes

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17
Q

Prior to rash in stevens johnson syndrome, a patient may have?

A

Prior to rash, may have fever, sore throat, cough, pain in eyes

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18
Q
A

Stevens Johnson Syndrome

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19
Q

if someone comes in with a rash or anything that is a s/s of steven Johnson Syndrome, what should you do?

A

stop the antibiotic immediately

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20
Q

What meds are most often associated with SJS?

A

NSAIDS
Penicillins, sulfonamides
Anticonvulsants

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21
Q

what is the risk with reoccurrence with SJS?

A

recurrence is often more severe

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22
Q
A

superinfection

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23
Q

can be due to microbes that have becomes resistant to antibiotics

A

superinfection

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24
Q

which three groups are at an even higher risk for superinfection?

A

individuals with HIV/AIDS
individuals with TB
immunocompromised persons

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25
The second infection (superinfection) is often due to a different microbial, what does this mean?
the antibiotic that they were originally on is not likely going to work
26
t/f: fungal infections can be a part of a a superinfection?
true
27
often end in -cillin
penicillins
28
Natural penecillins G & V are ?
penecillins
29
what are?: zosyn timentin augmentin unasyn
penicillins
30
penicillin absorption depends on pH of stomach and intestine presence of food in gi tract, and penicillin used (if given orally) Most given on empty stomach- _____ hr before or _____ hrs after meal
1, 2
31
Large IV doses can prolong bleeding time when taken with anticoagulants with this drug?
penicillins
32
this type of penicillin is safe during pregnancy
natural penicillins, G &V
33
what are the most common side effects of natural penicillins and ampicillin?
GI effects
34
Up to 10% of population is allergic
Natural penicillins
35
store liquid suspensions in the fridge and ____ after 14 days
discard
36
Adverse effects of penicillins? (x4)
GI: N/V, diarrhea, tongue inflammation Hypersensitivity: rash, anaphylaxis, serum sickness CNS: lethargy, hallucinations, confusion, anxiety/depression sensitivity to other beta lactams
37
s/s include: fever, general feeling of illness, hives and itching, joint pain, rash, swollen lymph nodes
serum sickness
38
what are the other beta lactam antibiotics?
Cephalosporins, carbapenems, monobactams
39
what is this?
rash due to penicillins
40
vitals electrolytes renal function LOC and Neuro status -bilateral strength test prothrombin time international normalized ration platelet count
penicillin assessments
41
give penicillins 1 hr before other _____________ such as _______ and ________
bacteriostatic antibiotics, tetracycliens and erythromycins
42
what are considerations for giving a IM injection for penicillins?
give deep into muscle dont inject more than 2 grams into muscle rotate sites
43
t/f: penicillins can be mixed with other IV meds
false
44
always start with "Cef-" or "Ceph-"
cephalosporins
45
what is the usual dose for cephalosporins?
1-4 grams in divided doses
46
Common infections that are treated with this drug include infections of the middle ear, throat, tonsils, bronchitis, pneumonia, and UTIs
cephalexin
47
t/f: there are few interactions with other meds with cephalosporins?
true
48
t/f: some cephalosporins are not well absorbed from the GI tract?
true
49
what is the method of action of cephalosporins?
Inhibit cell-wall synthesis (bacteriocidal) 1st generation- mainly gram + 2nd and 3rd generation: gram – bacteria 4th generation- gram neg and pos bacteria
50
Assessment for Cephalosporins
liver function alcohol use within 72 hours glucose levels RENAL FUNCTION -BUN AND CREATININE PT platelet counts superinfection bleeding superinfection
51
Take oral form WITH food to decrease GI irritation Eat yogurt or drink buttermilk to replace intestinal flora May interfere with clients blood sugar monitoring
cephalosporins
52
what are the adverse effects of cephalosporins? (x7)
GI: N/V, diarrhea Neuro: confusion BLEEDING hypersensitivity Serum sickness -fever, edema, hives thrombophlebitis altered gluscose levels
53
azreonam is what type of antibiotic?
monobactam
54
what are adverse effects associated with monobactams? (x2)
thrombophlebitis superinfection
55
_______ are bad about causing superinfections: candida albicans (thrush, vaginal infection), very opportunistic
monobactams
56
t/f: monobactams are effective against pseudomonas?
true
57
Prescribe miconazole for _______ Candida infections
vaginal
58
Prescribe nystatin for ______ Candida infections
oral
59
monobactams are contraindicated in? (3)
patients who already have a VIRAL infection LACTATING mothers Be very careful in patients with a history of penicillin or cephalosporin allergy, with decreased liver or renal function or in older patients
60
Have patients report pain, redness, or swelling at IV site immediately Have patients report pain and inability to eat Have patients report vaginal burning, itching, discharge
instructions for patients concerning monobactams
61
What should you assess for when giving a monobactam?
IV stie pain redness, swelling inability to eat (sign of superinfection)
62
Incompatible with most other IV meds Probenecid may increase blood levels of _______ Some other antibiotics such as imipenem and cefoxitin may decrease the effectiveness of ________
aztreoman
63
do not give with aminoglycodes because it can cause severe nephrotoxicity!
aztreonam
64
End in –penem
carbapenems
65
indications for Carbapenems
Used for life-threatening infections that haven’t responded to other medications given for very complicated skin or skin structure infections, given for intraabdominal infection bacterial meningitis complicated body cavity issues
66
given for very complicated skin or skin structure infections, given for intraabdominal infection BACTERIAL MENENGITIS complicated body cavity issues
carbapenems
67
adverse effects of carbapenems 5
GI respiratory distress seizures low bp hyperkalemia
68
indications for Vancomycin
MRSA Clostridium difficile
69
s/s: hypotension, flushing of the face and trunk. rapid release of histamines cause this to happen, start the med slow and then give accordingly.
red person syndrome
70
what are the adverse effects of vancomycin?
red person syndrome ototoxicity nephrotoxicity THROMBOPHLEBITIS
71
peaks and troughs are needed to be obtained with this drug
vancomycin
72
there is usually a test dose first and you also need to obtain baseline hearing level with this drug
vancomycin
73
More effective if given orally for colitis IV is best for all other conditions Give slowly Not compatible with much when given IV
vancomycin
74
Tell patients… Report facial flushing, feelings of faintness, hearing loss, swelling or redness at IV site with this drug
vancomycin
75
contraindications with vancomycin
corn allergy vancomycin allergy caution w/renal insufficiency
76
Interactions: Metformin may increase risk for lactic acidosis Drugs that are toxic to hearing or the kidneys increase risk for ototoxicity or nephrotoxicity with this drug
vancomycin
77
metformin given with vancomycin increases the risk for which condition?
lactic acidosis
78
end in "-cycline"
tetracyclines
79
Interact with milk products, antacids and iron salts (prevent absorption)- give 1 hr before or 2 hrs after drinking milk
tetracyclines
80
Adverse effects: GI, photosensitivity, hepatic and renal toxicity, superinfection
tetracyclines
81
________ interact with milk products, antacids, and iron slats which prevent absorption
tetracyclines
82
Give on empty stomach Give water (a lot) with administration or risk severe esophageal irritation Don’t give within 1 hour of bedtime (esophageal reflux)
tetracyclines
83
Check expiration date (if outdated, can lead to nephrotoxicity)
tetracycline
84
Keep away from light Avoid sun and use sunblock
tetracyclines Fluoroquinolones sulfamides
85
Do not give to those less than 8 years old as permanent teeth will be discolored (Passes through breast milk)
tetracyclines
86
Oral hygiene is key to prevent mouth sores with this drug
tetracyclines
87
what does this depict?
tetracycline stained teeth
88
Erythromycin, Azithromycin, and clarithromycin are all?
macrolides
89
this medication is given with an enteric coating so it will not be destroyed by stomach acid
macrolides
90
Can increase theophylline levels, increasing risk of toxicity
macrolides
91
Adverse effects: increase in eosinophils, GI distress
marcolides
92
Don’t drink fruit juice with these meds
marcolides
93
what do you need to assess for with macrolides? 2
hepatic function hydration
94
Often end in –mycin or –micin
aminoglycosides
95
gentamicin is a ?
aminoglycoside
96
what is the indications for aminoglycosides ?
Effective against gram-negative bacilli, mycobacteria, some protozoa
97
Serious nosocomial infections, UTIs, CNS infections Used in combination with penicillins to treat gram-positive organisms Can be used to prevent endocarditis during GI and GU surgery or procedures
Uses for aminoglycosides
98
these drugs cross the placenta but NOT the blood/brain barrier
aminoglycosides
99
Cautious use with NMBAs- can increase neuromuscular blockade with increased respiratory distress and muscle relaxation
aminoglycosides
100
Toxicity to kidneys and neurologic system can result in renal failure and peripheral neuropathy
aminoglycosides
101
Ototoxicity- can be masked by ______; _______ increase risk when giving aminoglycosides. Hearing loss may be irreversible
antiemetics, Loop diuretics
102
aminoglycosides can cause ______ ______ (lack of feeling in distal extremities, tingling, often in diabetics)
peripheral neuropathy
103
Allergy history Culture and sensitivity prior to first dose Vital signs Electrolytes Hearing ability Renal function Adverse reactions Patient’s knowledge level
assessment before giving aminoglycosides
104
Keep well hydrated Don’t mix other drugs with IV Monitor key assessments Administer IM dose deep into large muscle mass
aminoglycoside implementation
105
Must administer IV form over 30-60 minutes for adults and 1-2 hours for infants to prevent neuromuscular blockage
aminoglycosides
106
Peak- draw blood __ minutes to __ hour after IV injection of gentamicin
30 min, 1 hour
107
when should the trough draw be obtained?
just before giving the next dose
108
Peak above __ mcg/mL and trough above __ mcg/mL can increase risk of toxicity with gentamicin
12, 2
109
what tube needs to be avoided as it interferes with the peak and trough results for gentamicin?
a heparinized tube
110
What are the adverse effects o aminoglycosides? 4
Rental toxicity ototoxicity neuromuscular blockage neuropathy
111
IV gentamicin needs to be administered over what time from for infants? for adults?
1-2 hours for infants, 30-60 minutes for adults
112
ciprofloxacin and levofloxacin are?
fluoroquinolones
113
often used for UTIs and URIs
fluoroquinolones
114
end in "-floxacin"
fluorquinolones
115
indications for fluoroquinolones?
gram negative bacteria UTIs URIs respiratory infection GI infection skin bone joint infections
116
Adverse effects of fluoroquinolones? (3)
GI dizziness phototoxic reactions
117
t/f: milk needs to be avoided with fluroquinolones?
true
118
changes in cell signaling proteins and causes toxic effects on muscles, tendons, cartilage, bones, and muscles
fluoroquinolone toxicity
119
typically seen in older people who are on steroids, also seen in athletes a lot. limit high intensity activity while on med,
fluoroquinolone toxicity
120
contraindications for fluoroquinolones?
myasthenia gravis breastfeeding pregnancy
121
while taking a fluoroquinolones you need to increase fluuids to prevent?
crystalluria
122
a patient needs to avoid driving while taking fluoroquinolones because the drugs?
may alter alertness
123
Drink plenty of fluids Avoid caffeinated products Avoid operating machinery and driving as the medication can cause dizziness Use sunblock and avoid the sun Report side effects such as dizziness, GI effects, and rash (elders more likely to develop side effects)
teaching for fluoroquinolones
124
Don’t confuse with meds use to treat GI system like proton-pump inhibitors (some end in –azole and –azine, such as co-trimaxazole)
sulfonamides
125
trimethoprim/sulfamethoxazole (bactrim) is?
sulfonamides
126
prevent folic acid synthesis and are bacteriostatic
sulfonamides
127
this drug class can Increase hypoglycemic effects of sulfonylureas (can drop blood sugar)
sulfonamides
128
Reaction similar to serum sickness is possible (fever, joint pain, hives, bronchospasm, leukopenia) ca be associated with this drug class
sulfonamides
129
Less commonly used now as resistance is increasing; more often seen when patient allergic to penicillin Used to have low solubility leading to crystallization of the urine, but newer ones are more soluble
sulfonamides
130
if you give ______ or ______ with sulfonamides, it can cause a hemorrage
phenytoin, warfarin
131
what is the largest use for sulfonamides?
UTIs patients allergic to penicillins
132
Prolonged use can lead to blood disorders such as anemia and low WBC and platelet count
sulfonamides
133
are not given topically bc of hypersensitivity
sulfonamides
134
adverse effects include: decreased blood glucose serum sickness kidney stones/crystaluria possible hemorrhage skin rash/itching blood issues with prolonged use Gi issues photosensitivity
sulfonamides
135
Avoid sun Take with full glass of water and drink plenty of fluids Report s/s of hypersensitivity
sulfonamides
136
Monitor blood sugar if diabetic, especially if taking oral hypoglycemic
sulfonamides
137
may turn urine yellow and permanently stain contact lenses
Sulfasalazine
138
what are the two types of antiparasitic drugs?
metronidazole chloroquine
139
is used to treat protozoan infections
metronidazole
140
is used to treat malaria
chloroquine
141
what are the antiparasitics?
metronidazole Iodoquinol Tinidazole
142
indications for metronidazole
bactericidal against anaerobic gram negative bacteria protozoa
143
What are the side effects of metronidazole?
GI: n/v, diarrhea CNS: headache, vertigo, ataxia,seizures, neuropathy darkening urine 9harmless) superinfection w/candidia (mouth and vagina) metallic taste in mouth
144
what should you do if Severe CNS symptoms = Seizures, peripheral neuropathy occur when givin metronidazole?
STOP MEDICATION
145
contraindications of metronidazole (2)
Active CNS diseases Severe Blood disorders
146
precautions with metronidazole (x4)
Existing Candida infection CHF Liver or renal failure Seizure disorder
147
Citalopram (Celexa), ritonavir (Norvir), or IV nitroglycerin, sulfamethoxazole or trimethoprim may also cause disulfiram-type reactions
metronidazole
148
what occurs when metronidazole is given with phenobarbital?
it decreases levels of metronidazole
149
what occurs when lithium and metronidazole are given together?
decreased lithium levels
150
is metronidazole compatible with anything IV?
not really
151
if you use alcohol while on metronidazole, you can have the _____ reaction
antabuse
152
What are the antiparasitics?
chloroquine primaquine quinine
153
this drug kills the erythrocytic form of protozoan responsible for malaria
chloroquine
154
MOA of chloroquine
kills the erythrocytic form of the protozoan responsible for malarial infections
155
where can malaria remain in the body during treatment which may cause a reoccurrence?
the liver
156
side effects of chloroquine? 2
Visual Symptoms: blurred vision, photophobia, (retinopathy) Nausea/Diarrhea
157
give chloroquine at least ___ hours before or after antacids or laxatives
4
158
t/f: child doses of chloroquine are based on weight
true
159
take 500 mg tablet once a week, 1 to 2 weeks before traveling, while you are where you are, and then for four weeks after you're back 1 g for acute
prophalaxis treatment for malaria
160
for acute attacks of chloroquine, give ___ gram orally and taper the dose off
1 gram
161
contraindications of chloroquine?
Allergy to drugs with connection to chloroquine Drugs with a connection to chloroquine that have a history of causing visual changes Prophyria (a disorder in production of hemoglobin
162
precautions with chloroquine?
Liver disease Alcoholism Young children with G6PD deficiency may lead to hemolytic anemia
163
interactions with chloroquine?
Antacids and laxatives with magnesium or aluminum decrease absorption of chloroquine Lemon juice reduces the effectiveness of chloroquine
164
what are the two classes of antifungal medications?
azoles polyenes
165
What are the azoles?
ketoconazole itraconazole micronazole clotrimazole
166
What are the polyenes?
amphotericin B (severe fungal infections) nystatin
167
antifungals are also called?
antimycotic
168
antimycotic medications are use for superficial or systemic ______ infections
fungal
169
antimycotic medications treat opportunistic infections that arise when the body's _______ ______ is compromised
immune system
170
MOA of amphotericin B?
interrupts integrity of the cell walls of fungi fungistatic and fungicidal (depends on dose and sensitivity)
171
common adverse reactions to amphotericin B?
Chills, fever, tachycardia, hypotension, headache, nausea Blood marrow suppression Thrombophlebitis Renal Toxicity hypotension hypomagnesemia hypokalemia
172
What two medications should be given with amphotericin B and why?
diphenhydramine and acetaminophen to minimize uncomfortable reactions
173
What should you monitor while administering amphotericin B? (4)
Vital signs and symptoms during infusion Kidney function tests every few days (BUN, Creatinine, Potassium) Weight, I+O for retention of fluid and urinary output (notify provider if have a decrease in urine output or weight change) Hct, CBC = watch for signs of bone marrow suppression and anemia
174
what needs to be done before amphotericin B is given and what needs to be done following?
give a test dose, DOCUMENT
175
what are the pros and cons of the lipid based form of amphotericin B ?
less adverse effects more expensive
176
what is thrush?
oral candida infection
177
how is nystatin used to treat oral candida infections?
the swish and swallow method is used
178
why are labs important for amphotericin B?
early detection of kidney damage or anemia
179
amphotericin B is contraindicated in?
allergy to drug breastfeeding
180
preexisting bone marrow depression, anemia renal insufficiency are all conditions that which drug would be used cautiously in?
amphotericin B
181
nephrotoxicity increases when amphotericin B is given with which drugs?
Nephrotoxic chemotherapy meds Aminoglycosides Cyclosporine Furosemide Vancomycin
182
________ when given with amphotericin B increases the risk for hypokalemia
corticosteroids
183
digitalis toxicity increases in the presence of _______ which is a side effect of amphotericin B administration
hypokalemia
184
Adverse effects: (common) chills, fever, n/v, anorexia, muscle and joint pain, indigestion, anemias (decreased hematocrit); also hypotension, flushing, paresthesias Hypomagnesemia and hypokalemia
adverse effects of amphotericin B
185
t/f: hypotension and tachpnea are also side effects of amphotericin B?
true
186
Monitor renal, liver function Usually test dose administered for 20-30 minutes Don’t mix with other meds Monitor baseline vitals and also repeat q30 minutes for at least 4 hours after starting it
amphotericin B
187
what are the side effects of ketonazole?
liver toxicity n/v, constipation, diarrhea drowsiness/dizziness decrease in sexual hormone synthesis which causes decreased libido, low sperm count, gynecomastia, menstural irregularities
188
ketoconzaole has to be given with what medium?
coffee, tea, water, juice, or HCl, IT NEEDS AN ACID MEDIUM
189
what liver tests do you need to monitor for with ketonazole?
ALT, AST tests
190
Oral form requires an acid medium for absorption in the stomach
ketoconazole
191
Report abdominal pain, jaundice, fatigue and anorexia Take with food and fluids to reduce GI symptoms Don’t take with antacids because there needs to be an acidic environment for absorption Do NOT drive or do hazardous activities if drowsy or dizzy Report Hormonal symptoms if severe
patient instructions for ketoconazole
192
Allergy to drug Meningitis caused by fungi Onychomycosis (fungal infection of the nails) Ocular fungal infections
contraindications for ketoconazole
193
History of allergy to other drug in its class Existing liver disease Alcoholism HIV infection Older adults Children less than 2 years
precautions for ketoconazole
194
these meds are often used to treat candidiasis
-azole
195
what -azole medication is the most common?
fluconazole
196
ONE notable exception to “azole” is _______________ which is used for ____fungal infections of fingernails and toenails
terbinafine
197
What are assessments that need to be done with antifungals?
renal or hepatic disorders lab work -liver enzymes, BUN, serum creatinine baseline vital signs
198
Interventions for –azole antifungals
Obtain a culture of the fungal site Monitor I/O Monitor labs (BUN, creatinine, and liver enzymes) Record vitals signs Monitor for side effects such as nausea, vomiting, headache, phlebitis if given IV, and signs of electrolyte imbalance
199
Do not abruptly dc Have labs monitored if outpatient Avoid alcohol with some Do not drive or operate machinery until you know the effects Report side effects such as ___nausea, vomiting, diarrhea, dermatitis, rash, dizziness, edema, tinnitus
Patient teaching for azole antifungals
200
treats herpes simplex and herpes zoster
Acyclovir
201
treats cytomegalovirus
Ganciclovir
202
treats hepatitis B and C
Interferon alfa – 2b
203
treats influenza
Oseltamiver
204
treats respiratory syncytial virus (RSV)
Ribavirin
205
Symptoms of infection include headache, low-grade fever, nausea, vomiting, diarrhea, muscle pain, fatigue and cough
symptoms of viral infection
206
if youre 18 and older and allergic to eggs you can take which flu vaccine?
flublok quadrivalent
207
if youre 4 or older and allergic to eggs you can now take which flu vaccine?
flucelvax quadrivalent
208
What medications are used to treat herpetic viruses?
acyclovir valacyclovir famiclovir
209
MOA of acyclovir?
inhibits replication of DNA, virostatic against herpes simplex and herpes zoster
210
side effects of topical acyclovir? (2)
burning itching
211
side effects of oral acyclovir? (4)
N/V diarrhea headache vertigo
212
IV side effects of acyclovir?
renal toxicity CNS toxicity: restlessness, tremors, psychosis, seizures thrombophlebitic
213
When using the topical form, patients should monitor and report severe skin reactions Oral, monitor and report severe GI symptoms Watch for renal toxicity by monitoring BUN and creatinine levels IV, infuse slowly Hydrate patient during and for 2 hours after infusion Watch for CNS effects Check patency of IV
acyclovir assessment and interventions
214
acyclovir is contraindicated in? (2)
allergy to acyclovir or valacyclovir
215
precautions with acyclovir?
renal insufficiency neurologic disorders, dehydration
216
Interactions Probenecid increases blood levels Zidovudine increases CNS effects Nephrotoxic drugs increase risk for renal toxicity
interactions with acyclovir
217
assessment for anti virals
Renal or hepatic disease Baseline vitals and lab work, especially CBC, BUN, serum creatinine, liver enzymes, and electrolytes I/O Monitor labs Record vitals Monitor for side effects Monitor for superinfection
218
Maintain adequate fluid intake Client with genital herpes or HIV should be aware that it can spread even when asymptomatic (condoms can reduce but not totally prevent spread); Report side effects, especially decreased urine output and CNS changes; also may experience GI side effects or rash Rise slowly from a sitting position Have labs monitored May experience gingival hyperplasia (swollen, red gums) and oral hygiene is key
Client Teaching for Anti-Virals
219
Severe systemic allergic reaction Multisystem involvement
anaphylaxis
220
anaphylaxis includes?
skin airway vascular system GI tract
221
anaphylaxis is life threatening can be generalized or systemic activity, go into circulatory shock, causes overwhelming ____________ AND __________
VASIODILATION, HYPOVALEMIA
222
if you're going to die from anaphylaxis what is the time from that you typically are going to do so from time of exposure and reaction to allergen?
6 hours
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How does anaphylaxis happen?
Prior sensitization to an allergen has occurred Produces antigen specific immunoglobulin So, subsequent re-exposure to the allergen causes anaphylactic reaction Release histamine, leukotrienes, prostaglandins, thromboxanes and bradykinins Cause increased mucous membrane secretions, increased capillary permeability and fluid leak Causes decreased tone in vasculature and increased tone in bronchioles
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increased risk and severity of anaphylaxis in?
infant -cannot communicate s/s adolescents/young adults -risk taking behavior surgery/L&D -drug exposure they previously havent had elderly Cardio and psychiatric alcohol, sedatives, antidepressants can put you at higher risk for severity
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common drugs that people are allergic to?
antibiotics aspirin NSAID IV contrast
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Common environmental allergies?
latex: gloves, urinary catheter, ET tubes
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Common poison allergens?
ants bees wasps yellow jackets
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Every system starts shutting down with anaphylaxis bc it causes inadequate ______ ______
tissue profusion
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this will confirm the diagnosis of anaphylaxis, this is done afterwards if you cant figure out what causing the allergy or if they still have the allergy
mast cell triptase
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diagnostic tools for anaphlaxis?
you can use ABG to tell how well theyre oxegenating ECG Chest X-Ray Urea Electrolytes
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allergens cause ___ antibodies to bind to ______ ______ which causes a release of histamines and ______ which causes an increase in permeability of capillaries and venules
IgE, mast cells ,leukotrienes
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systemic vasodilation, increased capillary permeability, poor tissue profussion, and hypovalemia,
anaphylaxis physiologic reactions
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s/s of anaphylaxis?
History of exposure (Not always clear) Hypotension Bronchospasm Upper Airway Obstruction Pulmonary Edema Angioedema Generalized Edema Pruritis Rash Vomiting Diarrhea Abdominal Pain
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_______ is likely when: sudden onset, sudden respiratory symptom, sudden decrease in blood pressure,
anaphylaxis
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Need ______ or more of the following to determine anaphylaxis: sudden skin or mucosal issues, sudden respiratory symptoms, sudden reduced bp, sudden GI symptoms
two
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if someone has a ______ ______ after exposure to a known allergen, then you need to be worried about anaphylaxis
reduced bp
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can look like: Anxiety or Panic Attack Asthma Bronchospasm/Laryngeal Edema due to inhalation of irritant Foreign Body Airway Obstruction Hypovolemia Vasovagal Episode Cardiogenic Shock
anaphylaxis
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what do you do if you know its anaphylaxis?
secure ABC remove trigger get them in a position that promotes ventilation and circulation (head leaning down) NEVER SITTTING OR STANDING administer epinephrine
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goal is to restore vessels to normal, stop multi organ failure and restore tissue profusion through?
epinephrine, oxygen administration, fluid recitation, antihistamines (second line of treatment), bronchodilator, steroids (may shorten anaphylattic crisis and decreases inflammation),
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increases vasoconstriction, increases peripheral vascular resistance and decreases mucosal edema, increases bronchodilation, increases inotrapy (increase force of muscle contrations, which is good for the heart), affects speed and conduction of the heart
epinephrine
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isolated reaction, some kind of trigger causes immediate reaction with immediate S/S within 30 minutes
uniphasic
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an hour up to 72 hours later after you have an initial reaction, you go back into it, it is not common
biphasic
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servere anaphylactic reaction that keeps occurring despite aggressive treatment 24-36 hours in possible length
protracted
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what is the dose of epinephrine for anaphalaxis IV?
0.1-0.25 mg every 5-15 min
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what is the dose of epinephrine for anaphylaxis IM?
0.3 - 0.5 mg may repeat every 10-15 minutes as needed
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you always want ______ doses of epi at all times, particularly if you have a biphasic reaction
two
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patient education for epi administration?
don’t put your thumb on the end teach them what their trigger is and teach them how to avoid it diet issue: how to modify their diet autoinjector is expensive, or it isn’t around when you need it, don’t know how to use it or inject it properly, sometimes have a reaction that is really bad really quck
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What is do all these drugs have in common: monobactams, penicillin, vancomycin, cephisorn, amphotericin b (fungazone), and acyclovir (zovirax)?
thrombph