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9 Cards in this Set
- Front
- Back
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Plasma Osmolarity
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= 2 X [Na]plasma + Glucose/18 + BUN/2.8
if you need a value for plasma osmolarity to figure out a problem and she gives us the plasma concentration for Na+ then we should know to multiply that value by 2 to get a good estimate of plasma osmolarity |
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Clearance (Cx)
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= ([U]x X V)/ [P]x
[u]x = concentration of x in urine v = urine flow rate [p]x = concentration of x in plasma |
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Renal Blood Flow
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= RPF/1-Hct
1-hct = the fraction of blood volume that is plasma |
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GFR
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= ([U]inulin X V)/[P]inulin
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Filtered Load
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= GFR X [P]x
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Excretion Rate
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V X [U]x
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Free Water Clearance (Ch2o)
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= V – Cosm ; Cosm =Uosm x V Posm
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[HCO3]/PCO2 ratio
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[HCO3]/(.03)PCO2 must equal 20 at a pH of 7.4
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HH Equation
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pH = pKa + log ([A-]/[HA-])
(base/acid) |
