HESI LPN
Pharmacology HESI Practice
1. A client with a diagnosis of schizophrenia is prescribed clozapine. The nurse should monitor the client for which potential side effect?
- A. Agranulocytosis
- B. Dry mouth
- C. Weight gain
- D. Hypersalivation
Correct answer: A
Rationale: The correct answer is Agranulocytosis. Clozapine is known to potentially cause agranulocytosis, a serious condition characterized by a dangerously low white blood cell count. Monitoring white blood cell counts is crucial to detect this side effect early and prevent complications. Choices B, C, and D are incorrect because dry mouth, weight gain, and hypersalivation are not typically associated with clozapine use. While dry mouth can be a common side effect of some antipsychotic medications, it is not specifically linked to clozapine. Weight gain can occur with certain antipsychotics, but clozapine is more commonly associated with metabolic side effects. Hypersalivation is not a common side effect of clozapine.
2. In the immediate postoperative period, a client is prescribed morphine via a patient-controlled analgesia (PCA) pump. Which finding should the PN consider the highest priority in this client?
- A. Monitoring the expiration date of the PCA morphine
- B. Assessing the rate and depth of the client's respirations
- C. Reviewing the type of anesthesia used during the surgery
- D. Observing the client's signs of disorientation
Correct answer: B
Rationale: The highest priority for the PN is to assess the rate and depth of the client's respirations when a client is receiving morphine via a PCA pump. Respiratory depression is a life-threatening side effect of intravenous morphine administration. If the client's respiratory rate falls below 10 breaths/min, the PCA pump should be stopped, and the healthcare provider must be notified immediately to prevent further complications. Monitoring the expiration date of the PCA morphine is important but not the highest priority compared to assessing respiratory status. Reviewing the type of anesthesia used during the surgery is not directly related to the immediate management of the client receiving morphine via PCA. Observing signs of disorientation is also important but not as critical as assessing respirations for potential respiratory depression.
3. A client diagnosed with a herniated disc is prescribed hydrocodone/acetaminophen 10 mg/300 mg prn every 4 to 6 hours. As the practical nurse (PN) enters the client's room to administer the requested medication, the client is seen talking and laughing with visiting family. What action should the PN take?
- A. Hold the pain medication until after the visitors leave.
- B. Notify the healthcare provider of the client's drug-seeking behavior.
- C. Administer analgesia as requested by the client.
- D. Inform the client that the medication is not needed based on their behavior.
Correct answer: C
Rationale: The correct action for the PN in this situation is to administer the analgesia as requested by the client. Pain management is based on the client's self-report of pain, which is the most reliable indicator of pain intensity. Analgesics should be given promptly when pain occurs and before it worsens. Following the administration of medication, the PN should discuss the situation with the charge nurse for further guidance or assessment.
4. 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.
5. The nurse is studying antacids that contain magnesium and calcium for the pharmacology exam. The student nurse remembers that these antacids should be used with caution in patients with which condition?
- A. Hypertension
- B. Renal failure
- C. Heart failure
- D. Peptic ulcer disease
Correct answer: B
Rationale: Magnesium and calcium can accumulate in patients with renal failure, leading to toxicity.
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