IV Therapy Flashcards

(73 cards)

1
Q

Intravenous

A

existing or taking place within, or administered into, a vein or veins.

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2
Q

Bolus

A

A lot all at once

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3
Q

Fluid overload

A

More common in the young and elderly

Too much fluid

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4
Q

Isotonic

A

Same particles on both sides

Action: replaces volume without disrupting intracellular and interstitial volume. ***Expands vascular compartment.

Indications: Used when bleeding out and we want to replace fluids: Vascular dehydration, Hemorrhages, Replaces NaCl, Dilutes hypernatremia (give slowly), PRN patient

Types: NS, Lactated Ringer’s, D5W, 1/4NS

Isotonic Patient: 275-295 mOsm/L

Isotonic Solution: 250-375 mOsm/L

Concerns: Use cautiously in patients who are fluid-overloaded or who would become compromised if vascular volume would increase such as cardiac/renal patients

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5
Q

Hypotonic

A

Less particles on one side

Action: hydrates cell by pulling h2o into cellular spaces from vascular space. ***Expands intracellular and depletes intravascular

Indications: Therapy of hypertonic dehydration, sometimes used with keto acidosis but we must get their electrolytes and fluid settled before hypotonic therapy

Types: ½ NS, ¼ NS, 33% saline, 2.5% dextrose in water

DO NOT GIVE IF THE PATIENT HAS A BRAIN INJURY: Brains love free water and will absorb it quickly and will lead to brain edema

*can cause cells to burst and can rob blood volume

Hypotonic patient: < 275 mOsm/L

Hypotonic solution: < 250 mOsm/L

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6
Q

Hypertonic

A

More particles on one side

Action –draws fluid out of intracellular space, leading to increased intracellular volume both in the vascular and interstitial space. ***Expands intravascular and depletes intracellular

ICU only
Indications: Tx of hypotonic dehydration, circulatory collapse, increased fluid shift from interstitial space to vascular space

Types:
10% glucoseICU only, (lungs might get fluid), Check CBG
o 3-5% NS
ICU only (lungs might get fluid)
o D51/2
o D5NS
o D5 in ringers

Watch: BP, Lung sounds, Sodium levels, Very irritating to the vessels, Infuse very slowly

Hypertonic patient: > 295 mOsm/L

Hypertonic solution: > 375 mOsm/L

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7
Q

Infiltration

A

Going into the tissue

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8
Q

Secondary medications

A

Piggyback

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9
Q

Intermittent medication infusion (INT)

A

Heparin-lock or saline-lock, IV in but no fluid going in

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10
Q

Phlebitis thrombosis

A

Inflammation of a vein that turns into a clot

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11
Q

Speed shock

A

Patient goes into shock because of medication going in too fast

Example: Potassium chloride, could kill you because it stops the heart

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12
Q

IV Pump

A

Forces the fluid into the IV to the pt.

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13
Q

IV controller

A

Pinches the tubing so that it only lets in a certain amount of med

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14
Q

Macrodrip

A

Large drops, regular IV tubing

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15
Q

Microdrip

A

Drops small drops

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16
Q

Women have _______-______% of fluid

A

50-52%

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17
Q

Babies have ________-________% of fluid

A

70-80%

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18
Q

What % of fluid is intracellular

A

40%

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19
Q

What % of fluid is extracellular

A

20%

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20
Q

What % of fluid is found in your blood vessels?

A

5%

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21
Q

What % of fluid is found in your interstitial space (CSF, Lymphatic)

A

15%

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22
Q

What % of fluid is trans cellular?

A

too small to measure

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23
Q

The __________ senses your level of fluids and electrolytes and controls your thirst and pituitary gland to put out ADH

A

Hypothalamus

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24
Q

The _______ ________ puts out ADH (antididiuretic Hormone), which tells you not to pee so that you can keep your fluid

A

Pituitary gland

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25
What are the factors that cause you to produce ADH?
* Stressors * Drugs (diuretics) * Smoking * Cancer * Steroids (aldosterone) * Kidneys , Edema, Too much K, Impacts the heart, too much phosphorus, Acidosis
26
What are the functions of fluids?
o Maintain blood volume o Helps to regulate temperature (Dehydration=Fever) o Transports materials to and from cells o Medium for cell metabolism o Assists in food digestion thru hydrolysis o Solvent in which solutes are available for cell function o Medium for excreting waste
27
What are the 2 different types of fluids we have in our bodies?
Intracellular | Extracellular: Intravascular, Interstitial, Transcellular
28
Movement of fluid through capillary walls depends on what?
Hydrostatic pressure: Pressure exerted on the walls of blood vessels Osmotic pressure: Pressure exerted by the protein in the plasma
29
The direction of fluid movement depends on what?
the differences of hydrostatic and osmotic pressure
30
Passive transport
Osmosis: Fluid moves from low solute to high solute Diffusion: Fluid moves from an area of high solute to low solute Filtration: Hold on to some particles and let go of others
31
Active transport
Physiologic pump moves from lower concentrations to one of higher concentration. Moves against the concentration gradient. Requires ATP for energy Against the concentration gradient: Sodium potassium pump maintains the higher concentration of extracellular sodium and intracellular potassium
32
What are the major cations?
``` ♣ Sodium ♣ Potassium ♣ Calcium ♣ Magnesium ♣ Hydrogen ions ```
33
What is sensible loss?
Urination and bowel movements
34
What is insensible loss?
* Skin= 500mL/day (Temperature?) * Bowels= 100-200mL/day (diarrhea? C.Diff?) * Lungs= 300-500mL/day (Hyperventilates?) Altogether, we lost between 500-1,000mL per day through insensible loss
35
First spacing
Normal distribution of fluids within the body
36
Second spacing
Abnormal accumulation in interstitial tissue Easily exchanges with extracellular fluid Example: on your feet all day, lay down and swelling goes away
37
Third spacing
Fluid accumulation in body not easily exchanged with ECF Examples: fluid in the lungs, severe burn, peritonitis, fistula. Pancreatitis, bowel extension, OR exposure (extensive) S/S: Hypovolemia Treat: • Slowly administer fluids to avoid hypervolemia • Look at electrolytes and urine concentration • Replace electrolytes and fluid if need be • Look for protein in the blood stream (Low protein- edemitis)
38
Gerontology considerations
Reduced homeostatic mechanisms (Cardiac, renal, respiratory) o Decreased body fluid percentage o Medication use o Hormone: decrease in ADH o Dehydrated more easily o Lost subcut tissue o Dry skin o Do not feel thirsty as often as younger individuals o *Should be weighed everyday (Best way to measure fluid balance) o *Will collect fluid in lungs faster than younger pateints, which leads to pulmonary edema o *Do not depend on tenting to tell you if the patient is older
39
Fluid volume deficit (FVD)
Medical diagnosis: Hypovolemia Definition: Losing fluid and electrolytes in the same proportion ***Different from dehydration: losing fluids only Can be recovered by administering NS or Ringer’s Lactate If hemorrhage: administer NS ``` Causes: • Vomiting • Diarrhea • GI suctioning • Sweating • Decreased intake • Inability to gain access to fluid ``` ``` Risk factors: • Diabetes insipidus • Adrenal insufficiency • Osmotic diuresis • Hemorrhage • Coma • Third space shifts ``` ``` S/S • Rapid weight loss • Decreased skin turgor • Oliguria • Concentratied urine • Postural hypotension • Rapid and weak pulse • Increased temperature • Cool and clammy skin due to vasoconstriction ``` *PC: hypovolemic shock
40
Fluid volume excess (FVE)
Medical diagnosis: hypervolemia Definition: Fluid overload or diminished omeostatic mechanisms Risk factors: • Heart failure • Renal failure • Chirrhosis of the liver ``` S/S • Edema • Distended neck veins • Abnormal lung sounds (wheezing) • Tachycardia • Increased BP • Pulse pressure • CVP • Increased weight • Increased UO • SOB • Wheezing ``` Treatment: • Directed at the cause • Restriction of fluids and sodium • Administration of diuretics *PC: pulmonary edema, HTN, electrolyte imbalance, hypoxemia, respiratory alkalosis
41
IV therapy for maintenance
Mainly for those who are NPO and/or stressed Give: 1500 mL fluid/sq meter of body surface Should include: glucose, sodium, potassium and water • Supplies calories • Spares protein • Minimizes ketone formation (Helps put the patient into ketosis)
42
IV therapy for replacement
Given when the body cannot maintain requirements Usually d/c in 48 hours Check renal function before administration ``` Given for: • Diarrhea • GI surgery • N&V • Loss of electrolytes • Wound infection ```
43
IV therapy for restoration
Used for restoration on ongoing basis - greater than 48 hours Given for: • Burns • Wound draining • Fistula draining Similar to replacement except you need - Strict I & O - Daily labs - Type of fluid depends of type lost
44
What is the minimum urine output/hour
30mL/hour
45
Midline vascular access device
Peripheral 3-8” long Can stay in 6 days – 4 weeks without causing a problem
46
Peripherally Inserted Central Venous Cather (PICC)
Peripheral Specially trained nurses can insert them ***Remove in slow short pulls o Don’t put pressure on the needle until you see blood because there could be a clot. Given in the Basilic vein most often • Sometimes given in the cephalic vein or subclavian vein Can’t us turnicut so put in Trendelenburg Ends in the superior vena cava of the heart
47
Central Venous Catheter (CVC)
Short term non-tunneled • 10 days • Placed in the jugular or subclavian ``` Long term tunneled • ***Must be removed by doctor • Hickman • Broviac • Groshong • Implanted port (Portacath) ``` Given for: Long term therapy, TPN, Glucose therapy, Chemo, Kidney failure
48
Crystalloids
Hypotonic, Isotonic, and Hypertonic solutions Solutes are totally dissolved and can freely move in and out of membranes. Takes 3-4X of these to do the same job as Colloids (expanders) Ringer’s lactate=most balanced solution • If pt. is allergic to lactose, don’t give lactate • There is a plain solution for these patients *Look for kidney failure because potassium is added to many solutions
49
Expanders (Colloids)
Solutes don’t dissolve Need more osmotic pressure Hypertonic Can be substitutes for blood transfusions Types • Albumin: Plasma protein, 500 mL of blood, Low albumin=edema, High protein=weight loss • Dextran: 20-40mL/minute, Given for hypovolemia, Substitute for blood transfusion • Hespan: Heta-starch, Not a blood product, LESS TOXIC THAN THE OTHERS, Substitute for blood transfusion • Mannitol: EXPANDER USED FOR BRAIN INJURY. It does not cause the brain to swell *Medications should not be given with or added to these solutions PC: ALWAYS OVERLOAD
50
What is the formula for patient osmolarity?
(2 x Na) + (glucose÷18) +(BUN ÷2.8)
51
What is the formula for Mean Arterial Pressure (MAP)?
Diastole+Diastole+Systole/3 *should be above 60!
52
Discontinuing an IV
Gloves Wait until you see blood and then put pressure Observe catheter for problems - If part of the catheter is gone, put turnicut on and call physician
53
Removal of Central Lines
- Per agency policy - ***Patient in Trendelenburg - ***Have patient bear down so blood will come out to prevent air from going in - Inspect the integrity of the catheter - Document - Take precautions to prevent air embolus and catheter breakage
54
What type of solution are blood products compatible with?
NS ONLY!
55
What should you do if the patient has a reaction to a blood transfusion?
stop the blood immediately, take all of the blood and saline administered with blood away keep the IV in with the piggy-backed saline.
56
Intrinsic infection
An infection that was already in the patient prior to care.
57
Extrinsic infection
An infection that we caused through care
58
How often should tubing be changed?
72 hours
59
How often should bags be changed?
24 hours
60
How often should the IV site be changed?
72 hours
61
How can we implement infection control?
- Wash hands before doing anything with the site - Good skin prep and technique with start - Change tubing/bags/site at proper times - Label all above - If no label consider expired - Inspect and palpate site daily, change if necessary - Dressing are to be left intact until catheter is removed or it becomes damp, loose, soiled - Wear gloves for dressing changes if needed - Universal precautions - Care with flushes, needless systems, additives ``` Site assessment: o Redness o Swelling o Tenderness o Coolness o Warmth o Inflitration- pain, coolness, pallor o Phlebitis- pain, redness, warmth, red streak ``` ``` Monitor: o Length of time hanging o Tubing o Flow rates o Pumps o Dressing o Site o Patient response o Documentation o Write down patient name and flow rate on the bag so that everyone knows ```
62
Infiltration
Local PC * Skin is cool and tight * Take IV out * Place warm compress * Graded from 0-4
63
Phlebitis
Local PC * Red, warm, swelling, red streak * Take IV out * Place either cold or warm compress * Inform physician and possibly infection control
64
Thrombophlebitis
Local PC • Edema, tender, vein feels like a cord
65
Hematoma
Local PC * Bruise and swelling, burning pain, discolored * Take IV out * Apply pressure * Elevate * Ice
66
Spasms
Local PC • IV too fast or the solution is cold (blood)
67
Extravasation
Local PC * Infiltration of medicine * Burning * Try to suck it back out with a syringe * Notify, take a picture, elevate, warm or cold compress, incident report, sometimes they even have to have surgery
68
Overload
Systemic PC S/S: Restless, Headache, High pulse, Gain >2 pounds in one day, Cough, fluid in the lungs, Edema, Hypoxia, O2 Sat<90 , Wide difference between I&O Treat: Report, Give diuretics, Keep HOB up, Daily weight, I&O monitoring, Do not take IV out, Turn down to keep the vein open, Keep patient warm
69
Air embolism
Systemic PC S/S: Palpitations, Confused, Coma, SOB, Tachycardia, Murmurs, Shock Treat: Call for help, Clamp the line, ***Trendelenburg on left side to prevent it from moving into the lungs, ***Oxygen, Vasopressors, Fluids, Could go into cardiac arrest
70
Infection/Septicemia
Systemic PC * Chills * Fever * Tachycardia * N&V * Pain * Elevated white count * Could go into septic shock
71
Speed shock
Systemic PC * Med too fast * Could go into cardiac arrest
72
Catheter embolism
Systemic PC Apply tourniquet and notify provider
73
Catheter occlusion
Systemic PC Find a specialist immediately