HESI LPN
Pharmacology HESI 2023
1. A 6-month-old infant is prescribed digoxin for the treatment of congestive heart failure. Which observation by the practical nurse (PN) warrants immediate intervention for signs of digoxin toxicity?
- A. Apical heart rate of 60 beats/min
- B. Sweating across the forehead
- C. Poor sucking effort
- D. Respiratory rate of 30 breaths/min
Correct answer: A
Rationale: A heart rate of 60 beats/min for a 6-month-old infant warrants immediate intervention as it falls below the normal range. The normal heart rate for a 6-month-old is 80 to 150 beats/min when awake, and a rate of 70 beats/min while sleeping is considered within normal limits. Bradycardia (heart rate <60 beats/min) in infants can be a sign of digoxin toxicity, necessitating prompt evaluation and intervention to prevent adverse effects. Sweating across the forehead (Choice B) is a non-specific symptom and may not directly indicate digoxin toxicity. Poor sucking effort (Choice C) and a respiratory rate of 30 breaths/min (Choice D) are not typically associated with digoxin toxicity and do not require immediate intervention in the context of this question.
2. A client with a history of heart failure is prescribed digoxin. The nurse should monitor for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Hypertension
- D. Hypotension
Correct answer: A
Rationale: Digoxin, a medication commonly prescribed for heart failure, can lead to bradycardia, characterized by a slow heart rate. Monitoring for bradycardia is crucial to detect and manage this potential side effect early on to prevent complications such as arrhythmias or decreased cardiac output. Tachycardia (choice B) is not typically associated with digoxin use. Hypertension (choice C) and hypotension (choice D) are also not common side effects of digoxin.
3. Prior to administering an oral dose of methylprednisolone, what is most important for the nurse to do?
- A. Administer the medication with a glass of milk
- B. Notify the healthcare provider of the finding
- C. Begin tapering the drug dose per protocol
- D. Teach the clients about foods high in calcium
Correct answer: A
Rationale: Administering methylprednisolone with food or milk is important as it can help reduce gastrointestinal side effects associated with the medication. This practice is commonly recommended to minimize stomach upset and irritation that may occur when taking methylprednisolone on an empty stomach. Therefore, it is crucial for the nurse to provide the medication with a glass of milk to enhance patient comfort and adherence to the treatment regimen. Choice B is incorrect as there is no indication in the question stem that suggests a need to notify the healthcare provider before administering the medication with food or milk. Choice C is incorrect because tapering the drug dose per protocol is not the immediate action needed prior to administering the first dose of methylprednisolone. Choice D is irrelevant to the administration of methylprednisolone and not the most important action to take before giving the medication.
4. A client is receiving heparin to treat a deep vein thrombosis. The nurse should monitor which laboratory result to assist in evaluating the efficacy of the drug?
- A. Platelet count
- B. Prothrombin time
- C. Partial thromboplastin time
- D. Serum levels of protamine sulfate
Correct answer: C
Rationale: The nurse should monitor the partial thromboplastin time to evaluate the efficacy of heparin. Partial thromboplastin time reflects the anticoagulant effect of heparin by measuring the intrinsic pathway of coagulation. Platelet count assesses platelet levels and is not specific to heparin efficacy. Prothrombin time is used to monitor warfarin therapy. Serum levels of protamine sulfate are not used to evaluate the efficacy of heparin.
5. A client with angina pectoris has been prescribed nitroglycerin tablets prn for chest pain. Which statement by the client causes the practical nurse (PN) to clarify instructions for this client?
- A. I will take one tablet every 5 minutes, up to three tablets.
- B. I should take one tablet at the onset of angina and stop activity.
- C. I need to replace nitroglycerin tablets every 3 to 6 months to maintain freshness.
- D. I should ensure that I chew the pill completely before swallowing it.
Correct answer: D
Rationale: Nitroglycerin tablets should be taken at the onset of angina, and the client should stop activity and rest. One tablet should be placed under the tongue (sublingually), not chewed or swallowed. One tablet can be taken every 5 minutes, up to three doses. If pain relief not achieved after taking three pills, seek medical attention immediately. Nitroglycerin should be replaced every 3 to 6 months. Nitroglycerin pain relief should occur in 5 minutes and duration should last 30 minutes.
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