After teaching a group of nursing students about digoxin, the instructor determines that the teaching was successful when the students identify which of the following as true regarding the monitoring of plasma digoxin levels? Select all that apply
A) Levels should be drawn immediately after the dose.
B) Levels should be drawn immediately before the next dose.
C) Levels should be drawn 6 to 8 hours after the last dose.
D) Levels of greater than 2 ng/mL are considered toxic.
E) Levels are considered therapeutic between 0.5 and 1.5 ng/mL.
Ans: B, C, D
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Digoxin blood plasma level measurements should be drawn immediately before the next dose or 6 to 8 hours after the last dose regardless of route. Therapeutic digoxin levels are between 0.8 and 2 ng/mL. Plasma digoxin levels greater than 2 ng/mL are considered toxic and are reported to the physician.
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