A Woman Prescribed Digoxin Is Complaining of Weakness, Nausea, and Anorexia

A woman prescribed digoxin is complaining of weakness, nausea, and anorexia. A serum potassium test revealed a level of 3.2 mEq/L. The physician orders a digoxin level for to rule out digoxin toxicity. The nurse checking the results knows that the therapeutic levels for digoxin range from:

A) 3) 5 to 5.0 ng/mL
B) 0) 5 to 2.0 ng/mL
C) 2) 0 to 3.5 ng/mL
D) 0) 3 to 1.2 ng/mL