Final answer:
The nurse should withhold digoxin and notify the physician when the pulse is 44 beats/min, as this is significantly below the normal range and could indicate an excessive effect of the drug.
Step-by-step explanation:
The nurse should withhold digoxin (Lanoxin) and notify the physician with the finding that the pulse is 44 beats/min. Digoxin is a medication used to treat heart conditions, including atrial fibrillation, atrial flutter, and sometimes heart failure that cannot be controlled by other medication. Bradycardia, a condition in which resting heart rate drops below 60 beats per minute (bpm), is a potential side effect of digoxin, and a pulse rate of 44 bpm is significantly below the normal range. It might indicate an excessive effect of the drug, which could lead to serious complications. Therefore, a pulse rate such as this warrants immediate medical attention.