HESI LPN
Pharmacology HESI 2023 Quizlet
1. A client whose seizure disorder has been managed with phenytoin is admitted to the emergency department with status epilepticus. Which drug should the practical nurse anticipate being prescribed for administration to treat these seizures?
- A. Phenytoin
- B. Diazepam
- C. Phenobarbital
- D. Carbamazepine
Correct answer: B
Rationale: In the management of status epilepticus, which is a life-threatening condition of prolonged seizures, rapid intervention is crucial. Diazepam is the drug of choice for treating status epilepticus due to its fast onset of action and effectiveness in stopping seizures. It acts by enhancing the inhibitory neurotransmitter GABA to suppress seizure activity quickly. Phenytoin, although used for long-term seizure control, has a slower onset of action and is not the first-line medication for managing status epilepticus.
2. A client has been prescribed losartan. Which change in data indicates to the practical nurse (PN) that the desired effect of this medication has been achieved?
- A. Dependent edema reduced from +3 to +1.
- B. Serum HDL increased from 35 to 55 mg/dL.
- C. Pulse rate reduced from 150 to 90 beats/min.
- D. Blood pressure reduced from 160/90 to 130/80 mm Hg.
Correct answer: D
Rationale: The correct answer is D. Losartan is prescribed for the treatment of hypertension. The desired effect of losartan is to reduce blood pressure. Therefore, a reduction in blood pressure from 160/90 to 130/80 mm Hg indicates that the desired effect of the medication has been achieved. Choices A, B, and C are not specific effects of losartan and do not directly relate to the expected outcomes of this medication. Dependent edema, serum HDL levels, and pulse rate are not typically influenced by losartan, making choices A, B, and C incorrect.
3. A client is prescribed metoprolol. The nurse should monitor for which common side effect of this medication?
- A. Dizziness
- B. Fatigue
- C. Orthostatic hypotension
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Dizziness. Metoprolol, a beta-blocker, can lead to dizziness as a common side effect due to its mechanism of action in reducing heart rate and blood pressure. This effect can cause a sensation of lightheadedness or unsteadiness, particularly when standing up quickly. While fatigue, orthostatic hypotension, and headache are potential side effects of metoprolol, dizziness is commonly observed and should be closely monitored by the nurse to ensure patient safety.
4. The healthcare provider notes that a client has a new prescription for 20 mEq of potassium. The IV site is inflamed but not tender, and has a blood flashback. What action should the healthcare provider take?
- A. Obtain a liter of normal saline with 20 mEq of KCl
- B. Contact the healthcare provider to clarify the prescription
- C. Withhold the prescription medication until a new IV is started
- D. Fax the prescription to the pharmacy for immediate dispensing
Correct answer: B
Rationale: The healthcare provider should contact the prescriber to clarify the prescription because an inflamed IV site may indicate potential issues with administering the medication. It is important to ensure that the prescription is appropriate and safe for the client before proceeding with administration. Option A is incorrect because administering potassium through an inflamed IV site can lead to further complications. Option C is not the best course of action as clarifying the prescription first is essential. Option D is also incorrect as the focus should be on ensuring the safety of the client before dispensing the medication.
5. Phenazopyridine is commonly prescribed for clients with urinary tract infections (UTI). Which statement by the practical nurse describes the purpose for the administration of phenazopyridine?
- A. To alter the pH level of the urine
- B. To reduce the frequency of bladder spasms
- C. To alleviate the painful symptoms caused by the UTI
- D. To prevent bacterial replication and resistance development
Correct answer: C
Rationale: The correct answer is C. Phenazopyridine, a urinary analgesic, is utilized to alleviate the pain associated with urinary tract infections (UTIs) like burning, pain, urgency, and frequent voiding. The administration of phenazopyridine can cause the urine to turn a bright red-orange color. It is recommended to take this medication with food to reduce gastric irritation. Phenazopyridine should only be used for a maximum of 2 days when taken alongside an antibacterial agent, which is typically prescribed for about 2 weeks to treat the underlying infection.
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