exam 3- presntations and videos Flashcards

(115 cards)

1
Q

heart
what is it

how much moves

A

Hollow, cones shaped organ, necessary for life

Moves more then 1800 gallons of blood/day

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2
Q

pericardium

atria/ventricals

A

encases the heart and anchors it to surrounding structures-fits snuggly to prevent overflowing

Atria -top
Ventricles –bottom of heart

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3
Q

heart beat

systole

diastole

A

One heart beat = contraction and relaxation of heart—aka cardiac cycle

Systole contraction-ventircles are contracting/atria filling-5o ml of blood remaining

Diastole atria are contracting and ventricles are relaxing filling

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4
Q

stroke volume

how often

A

Stroke Volume: Difference between the end diastolic volume and the end systolic volume -

70—80 tomes a minute

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5
Q

cardiac output

what is

what indicator of

what happens if not pumping correctly

A

HR X Stroke Volume

Indicator of: amount of blood pumped into ventricles in one minute—how well heart is functioning as a pump-how well heart is working//

if not pumping correctly, cardiac output and tissue perfusion are decreased

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6
Q

ischemia

necrosis

A

I-depreivation of oxygen, body tissues do not get enough blood/

/N- one step further, tissues will start to die as a Result of not enough oxygen in blood

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7
Q

preload

frank starling mechaniism

A

Preload: new rubber band-stretch and release which will snap back into place and shape-overstretching will become relaxed and lose ability to recoil –overstretching cardiac muscle fibers eventually leads to ineffective contraction

Frank Starling Mechanism: -repeatedly stretch past a certain point it will eventually lose elasticity-cant snap back into oringal shape/size

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8
Q

compliance

afterload

A

Compliance: take a lot of force/work to inflate at first. As it stretches more often it becomes more complaint and expands easily with less force as time goes on

Afterload: force ventricles must overcome to eject blood volume

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9
Q

s/s of low potassium level

A

leg cramps

heart fluttering

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10
Q

Diagnostic Tests cardiac

A

Cardiac Cath - npo,allergies to iodine, assess aspirin, vs

CT Scan-iodine allergy, npc 4 hr

Echocardiogram

Electrocardiogram

Lipids -low fat meal then no food for 8-12 hrs

Dobutamine Stress Test -npo , discontinue beta blockers, ace

Treadmill Stress Test -comfortbael clothes, npo and no smoking

TEE-npo, vs

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11
Q

pt assessment cardiac

A

History—

Personal and family history

Diet history

Socioeconomic factors

Current health problems -perceived or actual

Functional history

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12
Q

risk factors for cardiac

A

Smoking

Obesity

Physical inactivity

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13
Q

age related changes cardiac

e/c
valves-cause
co/bp/contr

A

efficiency and contractiblity decreases-leads to decresaded ardiac output.

Valves become more thicker/ rigid causing increased BP.

Older adults have decreased cardiac output, INC blood pressure, Decreased contractility

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14
Q

Patient Physical Assessment
cardiac

what looking at

A

General appearance

Skin color/temperature

Extremities

Capillary refill

Edema

Blood pressure//Heart Rate

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15
Q

normal hr

school age
adult
athlete

A

Pediatric/School Aged 70-110

Adult  60-100

Athletes may have lower heart rate

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16
Q

heart failure
what kind of problem

results in what
cardiac output

A

Filling & pump/Contracting problem…

results in  metabolic needs of the body are not met due to not enough blood being pumped—

cardiac output falls leading to decreased tissue perfusion and vascular congestion/Congestive heart failure

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17
Q

impaired myocardial function

most at risk for hf

causes of heart failure

A

coronary heart disease/MI-most risk

cardiomyopathy

rhematic fever

ineffective endocarditis

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18
Q

increase cardiac output

causes of heart failure

A

hypertension

2.Valve disorder

  1. anemia
  2. Congenital heart defects
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19
Q

acute noncardaic conditions

causes of heart failure

A

Volume overload

2.hyperthyroidim

  1. fever/infection
  2. Pulmonary emboli
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20
Q

Incidence, prevalence & Risk factors

incidence
prevelance
risk factors
life exp
risk for

A

Incidence and prevalence increase with age

Prevalence & Mortality: African Americans have higher risk

Risk factors: impaired myocardial function- mi, hypertension

Life expectancy: dependent on underlying cause, and how quickly its treatment

Risk for sudden cardiac death increased

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21
Q

systolic vs diabolic failure

manifestations

A

S-Weakness, fatigue, and decreased exercise tolerance.

D-Shortness of breath, tachypnea, and respiratory crackles

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22
Q

left sided heart failure
culprit

A

coronary heart disease and hypertension

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23
Q

when Left ventricle function fails

what falls
backwards effect
backs where

A

Cardiac output falls

Backward effects pressure in left ventricle/atrium increase which….

Backs up into the pulmonary system inc congestion and pressure

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24
Q

lef sided hf manifestations

A

fatigue/activity intolerance/dizziness

dyspnea,

SOB ,

cough,

orthopnea(SOB when laying flat),

congested lung sounds

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25
Right sided culprit
–restrict blood flow to lungs Culprit acute chronic repository issues
26
when Right ventricle is impaired cant do what-> increased what
cant pump blood  accumulate in systemic venous system Increased venous pressure
27
Classic Manifestations:- right sided hf
abdominal organs congested , JVD , peripheral edema
28
acute vs chronic
acute-abrupt onset resulting in decreased cardiac function/output chronic-progressive deterioration leading to cardiomyopathies, vascular disease, chd
29
Diagnosis of Heart Failure History & Physical How will your patient present to you??
peripheral edema, too tight shoes, tired, not sleeping good, sleeping in chair, stopping halfway, cant catch breath, tired, lethargic
30
diagnostic test for hf
BNP (Brain natriuretic peptide): hormone released by heart when blood volume changes, inc in HF-levels are normally less then 100 Electrolytes-potassium sodium and chloride BUN & Creatinine-renal function Blood Gases-resp status Chest X ray-congestion EKG-dysrymthias, ischemia , infarction Echo-blood flow through heart
31
ACE inhibitors & ARBS what kinds assessment cough monitor take/slow HF drugs
“PRIL” Medications & “ARTAN” Medications Assessment vasodilation, lower systolic pressure ACE cough dry, persistent cough, constantly clearing throat monitor-bp,hr, potassium,wbc, renal function take at same time each day/slow position changes
32
Beta Blockers assessments HF drugs
“OLOL” Medications Assessment pulse and bp prior
33
Diuretics-what di what drugs assessment watch obtain/drink/avoid/sudden/ eat HF drugs
– will help reduce preload Furosemide, metolazone, bumetanide, spironolactone Assessment increases urine output, input, Watch electrolyte imbalances; hypokalemia –may be on potassium supplement obtain weight/vs, drink water, avoid sudden changes, eat high potassium
34
Positive Inotropic Agents what does what drug assesmetn report, monitor, no, eat HF drugs
Increases cardiac output and improve contractility Digoxin Assessment take apical pulse for 1 minute. report anorexia,nv,monitor renal failure, no antacids, eat high potassium
35
Respiratory Status, Positioning & Edema Heart failure assess position elevate
asses pulse ox-might need oxygen therapy fowlers position- adequeute ventilation and help breath easier elevate extremities, might have teds on
36
Nutrition & Activity heart failure
sodium restriction-possibly fluid gentle progressive exercise
37
surgery heart failure
valve replacement heart transplant or circulatory resistance(balloon pump)
38
Heart Failure Health Promotion decreased cardiac output excess fluid volume activity intlerance knowledge defect
Decreased cardiac output support them, resp system, assess vitals, asses pulse ox, oxygen therapy, fowlers position Excess fluid volume  FV, diuretics, IV transition oral, watch electrolyte imbalance, monitor labs and ECG, avoid foods high in sodium, I and o, restrict fluids Activity intolerance  help with ADL, encourage to participate as able/tolerated. Knowledge deficit daily wights, if gain more then2 pounds a day- call doctor, don’t want gaining weight.// /take BP, take pulse, keep all appointments and follow ups
39
teaching HF\ diet meds weight monitor
low sodium diet meds daily weight monitor I and o
40
Pulmonary Edema what is it what caused by
What is it?  accumulation of fluid in intestinal tissue and avloli in lungs-MEDICAL EMERGENCY Caused by cardiac and non cardiac issues
41
patho pulmonary edema contractibility ventricle unable resulting in
Contatialbility of left ventricle impaired severely ventricle is unable to eject the blood that enters it Resulting in sharp rise in end diastolic pressure, pulmonary capillaries are congested and interfere with gas exchange
42
manifestations of pulmonary edema resp cardio nuero
respiratory tachypenia,dyspnea, orthopena cardio tachycardia,hypotension, cool clammy skin nuero restless, anxiety, confusion
43
Pulmonary Edema Treatment Medications/Treatment
morphine-anxiety and improve breathing relaxes lungs oxygen, cpap brathing treatments, diuretics and vasodilators
44
Pulmonary Edema Treatment emergency
Be prepared: in emergency , need resp equipment,-- fatigue, impaired gas exchange, acid base imbalances can lead to cardiac arrest
45
Pulmonary Edema Treatment focusing on diagnostic tests
Focusing on: restoring effective gas exchange, reducing pressure and fluid in pulmonary vasular system Diagnostic Tests: ABG, chest x ray,
46
pulmonary edema improve gas echange cardiac ouput fear
IGE-assess rest status, high fowlers, administer oxygen, CDB co-vs, heart sounds, iv, I and o fear- emountinal support
47
what is blood pressure
tension or pressure exerted on blood on aretial walls, certain amounts of pressure are required to keep walls open and capillary perfusion and ixygenation of all tissue
48
hypertension
excess pressure in the arterial portion of the systemic circulation
49
Systolic averafe felt rises
less then 120 average felt as peripheral pulse pressure rises as the heart contracts during systole, ejecting its blood
50
diastolic relax minumin average
cardiac relaxation and filling maintain a minimum pressure to maintain blood flow average is less then 90
51
Hypertension diagnosed normal elevated hypertension stage 1 hypertension stage 2 hypertensive crisis
Based on the average of three or more readings taken on separate occasions < 120 <80-normal elevated-120-129  and <80 HTN1-130-139  OR 80-89 HTN 2At least 140 OR At least 90 Crissi>180   AND/OR >120
52
modifiable risk factors hypertension
High sodium intake Low electrolytes Obesity Alcohol consumption Insulin resistance
53
non modifiable risk factors hypertension
Genetic factors Family history Age Race
54
manifestations of hypertension
Asymptomatic in early stages Headache Nocturia Confusion Nausea/vomiting Visual disturbances
55
Sustained BP affects the: cardiovascular
rate of atherosclerosis increases, inc risk of cardiac coronary heart disease and stroke
56
Sustained BP affects the: nueroligal
cerebral infarct(stroke) microaneurysms hypertensive encephalopathy- high bp, altered loc, increased cranial pressure, papiledema, seizures
57
Sustained BP affects the: renal
nephrosclerosis of small nephrons in kidneys renal insufficiency
58
Lifestyle Modification hypertension diet physical activity alc/tobacco stress meds
DASH- reduce sodium, fat maintain potassium /caclium level, —grains, veggies, fruit lean meat Physical Activity-regular exercise -30-45 mins Alcohol and Tobacco- smoking directly related to heart disease, alcohol in moderation Stress Reduction Stress increases vasoconstriction increasing BP…solution relaxation techniques/alternative therapies Medications: ACE, ARBs, Calcium Channel Blockers, Beta Blockers, Vasodilators, diuretics
59
Alpha-Adrenergic Blockers meds first dose assess can cause antihypertensive
Doxazosin Prazosin First dose is bedtime,-fainting assess bp/apical, dizziness, orthostatic hypotension,nasal congestion
60
Angiotensin-Converting Enzyme (ACE) Inhibitors meds nursing considerations cough assess when take report positional antihypertensive
“pril” drugs Prevents constriction and sodium/water retention --Watch BUN, creatinine and potassium levels/ /ace cough assess bp, 1 hr before meals, report edema, slow positional changes
61
Angiotensin II Receptor Blockers (ARBs) meds assess when take report positional antihypertensive
“artan” drugs assess bp, 1 hr before meals, report edema, slow positional changes
62
Calcium Channel Blockers meds assess toxicity keep watch antihypertensive
“pine” drugs, diltiazem assess bp, apical pulse,constipation toxicity-nausea, weakness, bradycardia keep nitrate available watch liver, renal function
63
Beta Blockers meds assess report antihypertensive
“olol” drugs assess bp, apical, report bradycardia, decreased co, hypotension, bronchospasm
64
Centrally Acting Sympatholytic meds take/ pathces/ causes/ relieves take/ dont/ do not changes antihypertensive
Clonidine take at bedtime patches to dry skin causes dry mouth relives dry mouth with water take with meals, dont abruptly discontinue, do not drive dt drowsiness slow positional changes
65
Vasodilators meds what does changes antihypertensive
Hydralazine //vasodilation, decreased bp, slow positional changes,
66
Diuretics meds nrursing considerations antihypertensive
Furosemide Hydrochlorothiazide Spironolactone   Risk of hypokalemia-muscle cramps, leg pain,//take bp and I and o SP-potassium sparing, avoid salt substitutes
67
hyperlipidemia
Hyperlipidemia = High Cholesterol
68
High Density Lipoproteins (HDL): what does optimal
help clear cholesterol from arteries, transporting to liver for excretion Optimal > 60mg/dL
69
triglycerides desired
amount of fat in blood desired is less then 150
70
Low Density Lipoproteins (LDL): what does optimal high levels
primary carrier of cholesterol Optimal <100 mg/dL high levels= promote atherosclerosis, deposits cholesterol on artery wall
71
Atherosclerosis what does/cause
deposits of fats and fibron that obtsuct and harden the arteireis, impair blood flow to peripgeral tissues--PVD
72
desired HDL,LDL,trig
Desired: high HDL, Low LDL, Low Triglycerides
73
Treatment of Hyperlipidemia modifacations overall goal medication goal
Lifestyle Modifications Overall goal to lower total cholesterol, triglycerides & LDL, raise HDL Medication: Goal lower ldl
74
Treatment of Hyperlipidemia chlosteroal lowering agents w/ nursing consideration meds that inhibit platelet aggregation
Statins: atorvastatin, pravastatin, simvastatin Nursing Considerations monitor cholesterol level, liver enzymes, cpk levels Medications to inhibit platelet aggregation aspirin, and clopidogrel
75
Peripheral Vascular Disease primary syomtome
Impaired blood supply to tissues: primary symptom-Intermittent claudication pain with activity/ cramping while walking /aching calves, legs thighs and buttocks accompanied by weakness and is relieved by rest
76
how else will PVD present pains p___ pilses temp color smin ulcer
Intermittent claudication –pain with activity dt low blood supply Rest Pain during inactivity, burning sensation and increased with leg elevation and decreased with dependent(hanging) legs Paresthesia – numbness /decreased sensation Pulses diminished or abset Temperature; cool Color with elevation pallor Color when dependentdark red color Skin thin, shiny and hariless Breakdown & Ulceration on toes or side of legs
77
Peripheral Vascular Disease diagnosis
History and physical –when pain Diagnostic Tests : Segmental pressure measurements - Doppler Ultrasound Oximetry Angiography
78
PVD treatments smoking walking foot care suport hose rest revasulrazaition
Smoking cessation, nicotine cases further vasospasms-reduced blood flow Walking gentle exercise Foot care  sores, blisters, prevent ulceration No support hose elastic will further reduce circulation Rest with claudication encourage to rest then go back to activity Revascularization surgery for progressive severe or disabling pvd
79
Medication goals pvd
Inhibit platelet aggregation vasodilation decrease blood viscosity
80
PVD assessment-cms sudden changes compare assess position changes
Sudden change in CMS??—cold painful pulseless//looking for color, motion and sensation Compare sides & notify Assess pulses, pain, color, temperature, cap refill Position changes promote blood flow
81
pain/skin intergirty PVD
Pain assess pain & warmth vasodilation improves atrial flow and reduces pain Skin Integrity risk of oxygen and nutrient deprivation to skin Clean and dry skin Position changes prevent breakdown –looking for ulcers, blisters, tight fitting shoes, apply bed cradle and egg crate mattress
82
pvd promote activity tolerance what to discuss
PAT- assist with cares, gradual increase in activity, positional changes smoking cessation, sings of bleeding, skin surveleince, diet and exercise
83
Raynauds Disease what is it what limits
Episodes of intense vasospasm in the small arteries of fingers & toes limits artieal blood flow
84
raynauds manifestations
Intermittent pain with skin color changes; Blue-White-Red disease occurs on digits
85
raynauds treatment
Avoid Cold/dress warm & Avoid Smoking Stress management Vasodilators Dietary habits, increasing activity, maintain BMI
86
Acute Arterial Occlusion -stages- occlusion results resulting
A peripheral artery may be occluded by the development of a thrombus (clot)or emboli results in impaired blood flow to tissues resulting in ischemia, then necrosis, then gangrene
87
thrombus embolism
Thrombus- blood clot that adheres to vessel wall Embolism-obstruction of vessels by debris
88
Manifestations- Acute Arterial Occlusion
Tissue Ischemia--- Painful, pale and cool, distal pulses are absent, paresthesia, cyanosis and mottling dec cap refill
89
Diagnosis, Acute Arterial Occlusion
Arteriography- used to confirm, locate occlusion, and determine extent
90
Medications Acute Arterial Occlusion med goal dischsarge
: Anticoagulation or iv heparin Goal:prevent further clot destruction and reoccuratn emboli Oral Anticoagulants at discharge Follow up labs and education, what can/cant eat
91
Surgery Acute Arterial Occlusion
Embolectomy (within 4-6 hours) procedure of choice to prevent further occlusion risk of complications and limb loss if surgery is delayed 12 or more hours
92
arterial arteries Peripheral- atherroclerosis, vascular disease Pain Pulses color temp edema skin changes ulcerations-where gangerene compressions treatment assessment
Pain-intermittent claudication, rest-inc with elevation, dec with dependent Pulses-diminsihed color-pallor w elevation, when dependent rubor temp-cool edema-absent or mild skin changes-thin shiny hairless, thick toenails ulcerations-deep, toes feet gangerene-may occur compressions-no treatment-smoking cessation, foot care, regular exercise assessment-CMS
93
venous thrombosis low pressure Disorder of Venous Circulation
Venous Thrombosis: blood clot that forms in wall of vein, supperfical and deep, infmallation and obstruction Low pressure & flow within venous system more common then atrial,
94
Deep Vein Thrombosis: common causes
hospitalization, surgery and immobilization
95
superficial venous thrombosis manifestations
Localized pain and tenderness at site Redness and warmth along course of affected vein Swelling & redness can be from where iv catheters are placed
96
Deep vein thrombosis manifestations
At times asymptomatic Dull, aching in extremity with walking Tenderness, warmth Cyanosis of affected extremity Edema of affected extremity
97
how diagnose and how treat dvt
diagnosed with ultrasound treated with anticoagulants
98
Pulmonary Embolism
clot that break loose and enters right side of heart and occludes blood flor to lungs
99
how to diagnose venous disorders
Leg pain swelling, check peripheral pulse Duplex Venous Ultrasound vsiuation of vein, velocity of blood flow
100
treatment venous disorders med labs dosage normal/therpatuc
Anticoagulation: IV heparin (Prolongs clotting times) aPTT-closely monitor this lab Dosage: Goal is to reach therapeutic Normal (control) aPTT: 30 to 40 seconds Therapeutic aPTT = twice the control value
101
treatment bridge med level anticipate pulmonary embolism
Oral (Coumadin) check INR-therpatic levels are 2-3 Anticipate oral & IV therapy
102
Coumadin Education & Teaching
Lab follow up Dietary Teaching: Avoid vitamin K rich foods (Dark Leafy Vegetables)
103
surgery for venous disorders
Venous Thrombectomy, Vena Cava Filter
104
Priorities in Care-venous disorders pain ineffective tissue perfusion impaired mobility risk for ineffective tissue perfusion
Pain: measure area and cirucmfenrce, maintain bedrest os ordered, give pain meds, reassess pain Ineffective Tissue Perfusion: asses pulses, skin intergrity, cap refill, elevate extremities, ted stocking -remove at ngiht, mild soap to cleanse area Impaired mobility: positon changes, rom, minimize atrophy, cough and deep breath Risk for ineffective tissue perfusion:assess resp status, pe system--sob ancuety, impending doom, vital signs
105
Chronic Venous Insufficiency what is what caused by
Inadequate venous return over a prolonged period of time – caused by varicose veins, dvt, or trauma
106
manifestations Chronic Venous Insufficiency
mild leg edema itching discomfort with standing reddish brown color normal pulses Stasis ulcers around ankle Thin and shiny cyanotic looking surrounding skin
107
Treatment-Chronic Venous Insufficiency goal compression elev walking cross keep
Goal focus on reducing edema and treating ulcerations Compression hose- beneficial! –remove once a day and while sleeping elevation walking, avoid long periods of standing and sitting dont cross legs keep legs soft/dry
108
venous disorders- DVT Pain Pulses color temp edema skin changes ulcerations-where gangerene compressions treatment assessment
Pain-mild, aching, itching Pulses-regular color-cyanosis + brown red tempnormal edema-worsens with standing skin changes-brown, around shiny ulcerations-ankle gangerene-no compressions-yes treatment-elevation, teds, dont cross, assessmentCMS
109
varicose veins caused by impairs
Irregular veins with incompetent valves Caused by: long standing The constant pressure, impairs the ability of venous valves to close
110
varicose veins manifestations
severe aching leg pain, leg fatigue, leg heaviness, itching, feelings of heat in the legs.
111
treatments varicose veins
compression therapy regular daily walking, prolonged sitting discouraged surgery
112
Lymphedema primary secondary
Primary – rare; associated with genetic disorders Secondary – acquired Due to damage, obstruction or removal of lymphatic vessels
113
lymphedema manifestations
soft, spongey skin, subq tissue becomes rough and fibric
114
Lymphedema treatments
Gentle exercise Compression Antibiotics limb elevation of affected side above heart limb restriction (labs/blood/iv) Dietary restriction- Sodium
115
Lymphedema promote tissue integrity montior fluid volume
pit-assess skin, compression sotckins, elevate extremities,skin clean, dry monitor fluid volume-i and o, restrictd sodium,