Answer:When a nurse is preparing to administer digoxin to a patient and notes a serum potassium level of 2.9 mEq/L, it's crucial to exercise caution because hypokalemia (low potassium levels) can increase the risk of digoxin toxicity. Here's the correct action for the nurse to take:
Hold the Digoxin: The nurse should hold the administration of digoxin in this situation. Administering digoxin when the patient has a low potassium level significantly increases the risk of digoxin toxicity, which can be life-threatening.
Notify the Healthcare Provider: The nurse should promptly notify the healthcare provider (physician or advanced practice nurse) about the low potassium level and discuss whether digoxin should be continued, adjusted, or temporarily discontinued until the potassium level is corrected.
Assess for Signs of Digoxin Toxicity: The nurse should closely monitor the patient for signs and symptoms of digoxin toxicity, which can include nausea, vomiting, diarrhea, visual disturbances (such as yellow or green halos around objects), and cardiac arrhythmias (irregular heart rhythms).
Correct the Hypokalemia: The primary goal is to correct the hypokalemia by administering potassium supplements as prescribed by the healthcare provider and addressing the underlying cause of low potassium. It's essential to follow the healthcare provider's orders for potassium replacement carefully.
Recheck Potassium Levels: The nurse should ensure that potassium levels are monitored regularly as prescribed and report any changes or trends to the healthcare provider.
Consider Other Medications: Depending on the patient's condition and the healthcare provider's orders, alternative medications or interventions may be considered to manage the patient's cardiac issues until the potassium level is within the desired range.
Overall, the key action is to prioritize patient safety by holding the administration of digoxin, notifying the healthcare provider, and addressing the underlying electrolyte imbalance. Correcting the potassium deficiency is essential before considering resuming digoxin therapy.