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### 37 Cards in this Set

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 Formula for Creatinine Clearance Ccr = UV/P x 1.73/A Formula for Urea Clearance Uun/BUN x V x 1.73/A Formula for Anion Gap [Na] + [K] - [Cl+HCO3] Formula to find LDL levels Total Cholesterol - (HDL + triglycerides)/5 Formula for FTI Total T4- T3 uptake / 100 Normal Anion Gap 8-16 mMOl/L partial alveolar CO2 pressure 40 mm Hg partial alveolar O2 pressure 99.92 mm Hg Normal H+ concentration in the blood 40 nMol/L Henderson Has. equation for acid base pH = pKa- log [total Co2 - .03 pCo2]/[.03 p Co2] pKa = 6.1 Urine specific gravity 1.003- 1.035 g/ml Specific gravity vs. Osmality Specific gravity measures density whereas osmality measures parts per unit mass Buffers in body 1) proteins 2) PO4 (40%) 3) HCO3 (60%) normal creatinine levels 70-157 ml/min/m2 Normal urea levels 64-99 ml/min/m2 Definition of anion gap difference between the usually unmeasured cations and the unmeasured anions Normal A/G ratios 1.5-2.5 Definition of Buffer capacity Amt of base consumed before upper limit of pH is reached amt of acid consumed before lower limit of pH is reached normal osmalality less than 10 mOsm Tips for case studies 1) solve for all variables 2) acidotic or alkolotic 3) respitory or metabolic 4) treatment recommended formula for osmalality 1.86 + glucose + BUN +9 ------- --- 18 28 HCO3 levels Plasm ISF Cell 128 31 8 Testing BUN 1) coupled enzyme test 2) indicator dye urinary pH 4.7 ---7.8 urine production pathway ornathine---> citrulline ----> arginine----> oranthine---> urea function of kidney urine formation regulation of fluids/ electrol regulation of acid/base excretion of waste hormone function protein conservation detection of proteins in urine + tetrabromphenol blue turns green/blue - tetrabromphenol blue turns yellow O2 saturation % total hemoglobin present as oxygenated hemoglobin osmotic pressure depends on: the total number of solute particles in solution definition of ascites leakage of fluids out of vascular space into peritoneal space increase in dissolved particles: decreases freezing point decreases vapor pressure increases osmotic pressure increases boiling point hypotonic vs hypertonic hypertonic: more H2O inside cell H2o goes out cells shrink Hyptonic: more H2O outside cells swell ionic composition for Na+ plasma ISF cell 142 145 10 Normal range of Na+ 80--180 mg/dL ionic composition for K+ plasma ISF cell 4 4 156 redistribution caused by: acidosis insulin deficiency Beta Blockers digitalis Excretion of H+ 1) Rxn filtered buffers 2) filtered bicarb 3) Rx with NH3 4) electrolyte exchange