Fluid Balance/Electrolytes Flashcards
How many pounds in 1 liter
2.2
Average adult fluid intake
2200-2700 mL
4 body functions that get rid of fluid
Kidneys, lungs, skin, GI
Lab values that show kidney function
BUN, creatinine
Lab values for urinalysis
pH and specific gravity
6 meds to watch for fluid balance
diuretics, steroids, electrolyte supp., antibiotics (affect kidneys), respiratory depressants, NSAID’s
Fluid excess
hypervolemia, greater fluid in EXTRAcellular compartment
Fluid excess symptoms
sudden weight gain, edema, full neck veins, crackles, BUN less than 10, decreased hematocrit,
Cause of fluid excess
IV therapy, kidney failure, heart failure, cirrhosis
Cause fluid deficit
Vomit, diarrhea, fever, burns, hemorrhage, confusion/depression, diuretics, third spacing, perspiration
Fluid deficit symptoms
sudden weight loss, postural HYPOtension, tachycardia, thready pulse, neck veins flat, slow vein filling, dry mucous membranes, dark yellow urine, inelastic skin turgor, confusion, cold clammy skin
Hypernatremia symptoms
Extreme thirst, dry and flushed skin, postural HYPOtension, fever, restlessness, confusion, agitation, coma, seizures, NA > 145, urine specific gravity 1.030
HypERnatremia symptoms
OSMOLALITY IMBALANCE
Extreme thirst, dry and flushed skin, postural HYPOtension, fever, restlessness, confusion, agitation, coma, seizures, NA > 145, urine specific gravity 1.030
HypOnatremia symptoms
OSMOLALITY IMBALANCE
Apprehension, nausea/vomiting, headaches, decreased consciousness, muscle weakness, seizures, NA
Potassium sources and function in body
fruits, potatoes, nuts, molasses
membrane potential of skeletal, smooth/cardiac muscle for normal function, stored in kidney, little room for fluctuations