The nurse prepares to administer digoxin 0.125 mg PO to a client who has chronic heart failure. The laboratory report reveals a digoxin level of 2.5 mg/mL. Which nursing action is most appropriate at this time?
Assess the apical pulse and if above 60 beats/minute administer the dose.
Administer 0.25 mcg and potassium 20 mEq IV.
Withhold the medication and notify the healthcare provider of the digoxin level.
Administer the digoxin with a potassium supplement.
The Correct Answer is C
Choice A reason: This is incorrect. Assessing the apical pulse is not enough to determine if the client is safe to receive digoxin. The client's digoxin level is already above the therapeutic range of 0.5 to 2 ng/mL¹² and giving another dose could increase the risk of toxicity and arrhythmias.
Choice B reason: This is incorrect. Administering 0.25 mcg of digoxin and potassium 20 mEq IV is not appropriate for this client. The client does not need more digoxin or potassium, as both could worsen the client's condition. Potassium levels should be monitored closely in clients taking digoxin, as low or high levels can affect the drug's action and toxicity³.
Choice C reason: This is correct. Withholding the medication and notifying the healthcare provider of the digoxin level is the most appropriate action for this client. The client's digoxin level is dangerously high and could cause serious adverse effects such as nausea, vomiting, vision changes, bradycardia, and cardiac arrest³. The healthcare provider may order to stop digoxin temporarily, adjust the dose, or prescribe an antidote such as digoxin immune fab⁴.
Choice D reason: This is incorrect. Administering the digoxin with a potassium supplement is not advisable for this client. The client's digoxin level is already too high and adding potassium could increase the risk of hyperkalemia, which can impair the heart's electrical activity and lead to cardiac arrest³. Potassium supplements should only be given to clients with digoxin-induced hypokalemia, and only under the supervision of the healthcare provider³..
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Decreasing the incidence of tachycardia is not the main therapeutic effect of atenolol for coronary artery disease. Atenolol is a beta-blocker that lowers the heart rate, but this is not the primary goal of therapy for coronary artery disease. Coronary artery disease is caused by atherosclerosis, which is the buildup of plaque in the arteries that supply the heart. This reduces the blood flow and oxygen to the heart muscle and causes angina, or chest pain.
Choice B reason: Dilating the coronary arteries is not the therapeutic effect of atenolol for coronary artery disease. Atenolol does not directly affect the diameter of the coronary arteries. It works by blocking the beta receptors in the heart and reducing the response to adrenaline and other stress hormones. This lowers the blood pressure and the oxygen demand of the heart.
Choice C reason: This is the correct answer. Decreasing cardiac workload is the therapeutic effect of atenolol for coronary artery disease. Atenolol reduces the contractility and the excitability of the heart muscle, which lowers the force and the frequency of the heartbeats. This decreases the amount of work that the heart has to do and the amount of oxygen that it needs. This helps prevent or relieve anginal attacks and improve the quality of life of the client.
Choice D reason: Increasing the strength of myocardial contraction is not the therapeutic effect of atenolol for coronary artery disease. Atenolol does not increase the strength of myocardial contraction, but rather decreases it. Increasing the strength of myocardial contraction would increase the oxygen demand of the heart and worsen the angina. Atenolol aims to reduce the oxygen demand of the heart and improve the blood supply to the heart.
Correct Answer is D
Explanation
hoice A reason: Preparing for endotracheal intubation and ventilatory support is not the action that the nurse should take for a client with thyroid storm. This intervention is indicated for clients with respiratory failure or impending airway obstruction, which are not the case for this client.
Choice B reason: Providing continuous sedation for pain relief is not the action that the nurse should take for a client with thyroid storm. This intervention may worsen the client's condition by suppressing the respiratory drive and lowering the blood pressure. The nurse should administer antithyroid medications, beta blockers, and corticosteroids as prescribed to reduce the thyroid hormone levels and the associated symptoms.
Choice C reason: Initiating cardiac monitoring and assessing for reflex bradycardia is not the action that the nurse should take for a client with thyroid storm. This intervention is indicated for clients with hyperkalemia or digoxin toxicity, which are not the case for this client. The nurse should monitor the client's heart rate and rhythm, but not expect a reflex bradycardia, which is a paradoxical slowing of the heart rate in response to a rapid rise in blood pressure.
Choice D reason: Maintaining IV fluid infusion and assessing adequacy of hydration is the action that the nurse should take for a client with thyroid storm. This intervention is indicated for clients with thyroid storm, as they are at risk of dehydration and electrolyte imbalance due to increased metabolic rate, fever, sweating, vomiting, and diarrhea. The nurse should administer isotonic fluids, such as normal saline, and monitor the client's fluid intake and output, urine specific gravity, and serum electrolytes.
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