Exam 1 - Fluid Disorders Flashcards
What percentage of body water is TBW?
60%
What is the TBW of a 154 lb male?
42 L
What 3 compartments make up body fluids?
1) Intracellular
2) Interstital
3) Intravascular
What percentage of body fluids is intracellular fluid?
40%
What percentage of body fluids is intravascular fluid?
5%
What percentage of body fluids is interstitial?
15%
What four things (including electrolytes) is ICF rich in?
1) Potassium
2) Magnesium
3) Phosphates
4) Proteins
What is the term for an increase in transcellular space?
Third space (or spacing)
What is the formula for determining maintenance fluid for patients?
1500 mL + 20 mL for each kg >20
What is the formula for calculating water deficit for patients?
0.6 (LBW) X [ ( Current Na / 140) - 1 ]
Normal Saline (NaCl or NS) contains how much sodium and how much chloride?
Na = 154 mEq/L Cl = 154 mEq/L
Lactated Ringer’s or LR contains how much Na and Cl?
Na = 130 mEq/L Cl = 109 mEq/L
Which fluids are isotonic solutions?
0.9% NaCl
LR
D5W
Which fluid is a hypertonic solution?
3% NaCl
Which solution is a hypotonic solution?
0.45% NaCl