Answer to Question 1
4
Serum digoxin levels should be 0.7 to 2.0 mcg/mL, with toxic levels at greater than 2.0 mcg/mL. Levels below 0.7 mcg/mL would be subtherapeutic. A level of 1.5 mcg/mL is within therapeutic range. A level of 2.7 mcg/mL would be considered toxic.
Answer to Question 2
2
Spironolactone (Aldactone) is a potassium-sparing diuretic. Side effects include hyperkalemia. Hypokalemia and hyponatremia are side effects of the thiazide diuretics. Hypernatremia is not a known side effect of any antihypertensive medication.