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12 Cards in this Set
- Front
- Back
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BUN Creatinine Ratio |
BUN/Creatinine Increase: Prerenal or Postrenal Azotemia |
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Creatinine Clearance |
(urine creatinine X urine mL per 24 hr / 1440) _____________________________________________ (plasma creatinine) X (1.73) ________ (Body surface area) Decrease: Renal Disease |
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Free Thyroxine Index |
THBR X T4 Estimation of free T4 Increase: Hyperthyroidism Decrease: Hypothyroidism |
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LDL Cholesterol |
Total Cholesterol - (triglycerides/5 +HDL Cholesterol) Increase: Risk of Coronary Artery Disease |
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Anion Gap Ratio |
(Albumin) _________________________ (Total Protein -Albumin) Reversed A:G ratio seen with multiple myeloma and liver disease. |
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Anion Gap |
(Na + K) - (Cl + CO2) or Na - (Cl + CO2) Difference b/w unmeasured anions and cations Increase: Renal Failure, Diabetic Acidosis, Drugs |
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Calculated Osmolality |
1.86 Na + (glucose/18) + (BUN/2.8) + 9 or 2 Na + (glucose/20) + (BUN/3) Increase: Dehydration, Uremia, Uncontrolled Diabetes, Alcohol or Salicylate Intoxication Decrease: Excessive water intake |
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Trough |
Lowest concentration of drug measured in blood. Reached just before next dose. |
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Peak |
Highest concentration of drug measured in blood. Drawn immediately upon achievement of steady state. |
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Steady State |
Amount of drug absorbed and distributed equals amount of drug metabolized and excreted. Usually reached after 5-7 half-lives. |
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Half-Life |
Time required for concentration of drug to be decreased by half. |
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Pharmacokinetics |
Rates of absorption, distribution, biotransformation, and excretion. |
