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9 Cards in this Set
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LBM and Fat - about what percentages do they make up?
What percent of the total body weight is water? What fraction of LBM is water? |
normal is about 80% LBM and 20% fat.
water usually makes up 57% of body. water makes up 73% of LBM. |
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What two categories is fat divided into? what is its significance?
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essential fat and storage fat.
essential = 5% total body weight males, 12% females. Can be periorbital, perioneal, required. storage = subcutaneous, around organs. |
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More fat:
what kind is corelated with heart attack? how is obesity defined? what kinds are there? what is healthy amount of fat? |
visceral fat (percentage grows as get older compared to subcutaneous)
Obesity: males = 25%, females =32%. Hypertrophic = lots of fat in cells. hyperplastic = lots of fat cells. men should have under 20%, females under 25%. |
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body water divisions: what percentage is extra, intra, and in plasma?
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intracellular = 63%.
extracellular = 37% plasma = 9% |
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What are the normal Na,K, Cl, HCO3 concentrations of various body compartments?
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plasma, intracellular cations
Na+ = 140 10 K+ = 5 140 plasma, intracellular anions: Cl- = 100, 5 HCO3- = 25 <10 |
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What makes up the extracellular volume? What compartments?
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plasma volume + interstitial volume.
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What's the equation for blood volume?
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BV = PV/(1-hct)
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What indicators work in what compartments?
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Total Body Water:
D20, HTo Extracellular Volume: Na, S, Inulin, Mannitol Blood Volume: Iron, Cromium PV: blue, albumin |
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How do you figure out molarity vs. miliequivelants vs. osmolarity?
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osmolarity's easy...just moles of solute
miliequivelants: need valence (Na+ is 1, Ca++ is 2) osmolarity: number of particles it'll divide into (NaCl = 2, CaCl2 = 3) |
