Wallach's Interpretation of Diagnostic Tests: Pathways to Arriving at a Clinical Diagnosis (732 page)

   Limitations

   Drugs that affect apo A-1:

   Increased: carbamazepine, estrogens, ethanol, lovastatin, niacin, oral contraceptives, phenobarbital, pravastatin, simvastatin

   Decreased: androgens, beta blockers, diuretics, and progestins

   Other factors that affect apo A-1:

   Increased: exercise

   Decreased: smoking, pregnancy, diet high in polyunsaturated fats, and weight reduction

   Drugs that affect apo B:

   Increased: androgens, beta blockers, diuretics, progestins

   Decreased: estrogen, lovastatin, simvastatin, niacin, and thyroxine

   Other factors that affect apo B:

   Increased: pregnancy

   Decreased: diet high in polyunsaturated fats and low cholesterol, weight reduction

   Other: apo A-1 and apo B are acute-phase reactants and thus should not measured in sick patients.