Med-Surg: Fluid & Electrolytes/1 Flashcards
2/3 of body fluid is where
ICF
1/3 of body fluid is where
ECF
1 kg/2.2 lb of body weight = ? L of fluid
one L of fluid
FVD most common type is
isotonic dehydration
FVD contributing factors
7
- excess GI or renal loss
- diaphoresis
- fever
- long-term NPO
- hemorrhage
- burns
- age
FVD pulse
thready
FVD cap refill
< 3 s
FVD CNS manifestations include
3
- weakness
- fatigue
- OH
FVD late signs
3
- oliguria
- decreased CVP
- flattened neck veins
FVD - monitor skin turgor how in older adults
check skin over sternum or forehead
FVD - output should be at least what
0.5 ml/kg/hr
isotonic solutions
3
- NS 0.9%
- LR
- 5% dextrose in water D5W
hypotonic solutions
2
- 0.45 NS
2. 2.5% dextrose in NS
FVE contributing factors
4
- kidney failure - late phase
- HF
- cirrhosis
- long term corticosteroid use
FVE - central venous pressure
increased
medications that can cause hypokalemia
4
- steroids
- diuretics
- digitalis
- laxatives
hypokalemia caused by body fluid loss includes
4
- vomiting
- diarrhea
- wound drainage
- NG suction
hypokalemia caused by
4
- excessive diaphoresis
- kidney disease
- dietary def
- alkalosis
hypokalemia manifestations
7
- muscle weakness
- cramping
- NV
- irritability
- confusion
- decreased bowel motility
- paresthesia
hyper or hypokalemia - muscle weakness
hypo
hyper or hypokalemia - fatigue
hypo
hyper or hypokalemia - NV
hypo
hyper or hypokalemia - decreased bowel motility
hypo
hyper or hypokalemia - increased bowel motility
hyper
hyper or hypokalemia - muscle twitching
hyper
hypokalemia EKG
flat and/or inverted T waves
No P = No K - what does this mean
if the client is not urinating, do not administer potassium
hyperkalemia risk factors
5
- renal failure
- adrenal insufficiency
- acidosis
- meds - potassium sparing diuretics, ACE inhibitors
ACE inhibitors and K
ACE inhibitors can cause hyperkalemia - ACE inhibitors decrease aldosterone and aldosterone helps excrete K
hyperkalemia manifestations
5
- peaked t waves
- ventricular dysrhythmias
- muscle twitching and paresthesia (early)
- ascending muscle weakness (late)
- increase bowel motility
peaked t-waves
hyperkalemia
hyperkalemia med tx includes
5
- kayexalate (monitor bowel sounds)
- 50% glucose with insulin
- calcium gluconate
- bicarbonate
- loop diuretics
hyponatremia risk factors
6
- GI loss
- SIADH
- adrenal insuff.
- NPO status
- water intoxication
- excessive diaphoresis
normal PCO2
35-45
normal HCO3
21-28
metabolic acidosis risk factors
6
- diarrhea
- fever
- hypoxia
- starvation
- DKA
- dehydration