A mother calls the nurse to report that at 0900 she administered an oral dose of digoxin to her 4-month-old infant, but at 0920 the baby vomited the medicine. Which instruction should the nurse provide to this mother?
Administer a half dose now.
Give another dose.
Mix the next dose with food.
Withhold this dose.
The Correct Answer is D
Choice A: Administering a half dose now is not advisable, because it may result in underdosing or overdosing of digoxin. Digoxin has a narrow therapeutic range and a high risk of toxicity, especially in infants and children. The amount of digoxin absorbed by the infant before vomiting is unknown, so giving a partial dose may not achieve therapeutic levels or may exceed safe levels.
Choice B: Giving another dose is not advisable, because it may result in overdosing of digoxin. Digoxin has a narrow therapeutic range and a high risk of toxicity, especially in infants and children. The amount of digoxin absorbed by the infant before vomiting is unknown, so giving a full dose may exceed safe levels and cause adverse effects such as nausea, vomiting, bradycardia, arrhythmias, or visual disturbances.
Choice C: Mixing the next dose with food is not advisable, because it may affect the absorption and bioavailability of digoxin. Digoxin should be taken on an empty stomach or at least one hour before or two hours after meals, because food can interfere with its absorption from the gastrointestinal tract and reduce its effectiveness.
Choice D: Withholding the dose is the safest option. If vomiting occurs within 30 minutes of administration, it’s generally advised to skip that dose to avoid the risk of overdose. The next dose should be given as scheduled Digoxin has a long half-life and accumulates in tissues, so missing one dose will not significantly affect its therapeutic effect. Withholding this dose will avoid overdosing and toxicity of digoxin, which can be life-threatening in infants and children. The nurse should also advise the mother to resume the regular dosing schedule and monitor the infant's pulse rate and signs of digoxin toxicity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A: Notifying the emergency response team of the client's seizure is not a necessary action for the nurse, as the seizure has already stopped and there is no immediate threat to the client's life. This is a distractor choice.
Choice B: Keeping orienting the client to time and place until he is less confused is an appropriate action for the nurse, as this can help restore the client's cognitive function and reduce his anxiety after a seizure. Therefore, this is the correct choice.
Choice C: Explaining the postictal state that usually follows seizures is not a priority action for the nurse, as this can be done later when the client is more alert and receptive. This is another distractor choice.
Choice D: Asking the wife to wait outside the room until the nurse can talk with her is not a considerate action for the nurse, as this can increase her stress and worry about her husband's condition. This is a contraindicated choice.
Correct Answer is D
Explanation
Choice A: Increasing oral fluids may help with hydration, but it will not reduce skin flushing caused by lisinopril. Lisinopril is an angiotensin-converting enzyme (ACE. inhibitor that dilates blood vessels and lowers blood pressure. Flushing occurs due to increased blood flow to the skin.
Choice B: Nitroglycerin is a vasodilator that relaxes smooth muscle in blood vessels and reduces chest pain caused by angina. It is not indicated for skin flushing caused by lisinopril. Moreover, nitroglycerin can lower blood pressure further and cause hypotension, headache, dizziness, and fainting.
Choice C: Going to an emergency department is not necessary for skin flushing caused by lisinopril. Flushing is not a sign of an allergic reaction or anaphylaxis, which would require immediate medical attention. Flushing is also not a symptom of a heart attack or stroke, which would present with other signs such as chest pain, shortness of breath, arm numbness, or slurred speech.
Choice D: Reassuring the client that facial flushing is a common side effect of lisinopril is the best action for the nurse to take. Flushing is not harmful or dangerous, and it usually subsides within a few hours. The nurse should explain the mechanism of action of lisinopril and its benefits for lowering blood pressure and preventing angina. The nurse should also advise the client to monitor his blood pressure regularly and report any signs of hypotension, such as dizziness, lightheadedness, or fainting.
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