HESI LPN
Pharmacology HESI 2023 Quizlet
1. The practical nurse administers lactulose to a client. Which client outcome would indicate a therapeutic response?
- A. An increase in urine output
- B. Two to three soft stools per day
- C. Absence of nausea
- D. Decreased serum potassium
Correct answer: B
Rationale: Lactulose is a type of laxative that works by preventing the absorption of ammonia in the colon, leading to increased water absorption in the stool and softening of the stool. The therapeutic response to lactulose is indicated by the passage of two to three soft stools per day, showing that the medication is effectively promoting bowel movements.
2. A client with hypertension is prescribed valsartan. The nurse should monitor the client for which potential side effect?
- A. Hypotension
- B. Tachycardia
- C. Hyperglycemia
- D. Hyponatremia
Correct answer: A
Rationale: The correct answer is A: Hypotension. Valsartan is an angiotensin II receptor blocker that can cause hypotension as a side effect by dilating blood vessels. Monitoring blood pressure is crucial to prevent complications related to low blood pressure. Choice B, Tachycardia, is incorrect because valsartan typically does not cause an increase in heart rate. Choice C, Hyperglycemia, is not a common side effect of valsartan. Choice D, Hyponatremia, is also unlikely with valsartan use.
3. A client with chronic heart failure is prescribed spironolactone. The nurse should monitor for which potential side effect?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hypernatremia
- D. Hyponatremia
Correct answer: A
Rationale: The correct answer is A: Hyperkalemia. Spironolactone is a potassium-sparing diuretic that can lead to an excess of potassium in the body, resulting in hyperkalemia. This side effect is important to monitor in clients taking spironolactone, especially those with chronic heart failure, as hyperkalemia can lead to serious cardiac complications.
4. What is the primary nursing intervention that the practical nurse should perform before administering ampicillin to a client diagnosed with a urinary tract infection?
- A. Obtain a clean-catch urine specimen.
- B. Assess the urine pH for acidity.
- C. Insert an indwelling catheter.
- D. Assess for complaints of dysuria.
Correct answer: A
Rationale: The correct answer is to obtain a clean-catch urine specimen. Before administering ampicillin to a client with a urinary tract infection, it is crucial to collect a urine specimen to determine the causative organism and evaluate the effectiveness of pharmacological therapy. Assessing the urine pH for acidity (choice B) is not the primary intervention needed before administering ampicillin. Inserting an indwelling catheter (choice C) is invasive and not necessary unless indicated for specific reasons. Assessing for complaints of dysuria (choice D) is important but does not take precedence over obtaining a urine specimen for proper diagnosis and treatment.
5. A healthcare professional prepares to administer a scheduled dose of labetalol by mouth to a client with hypertension. The client's heart rate is 48 beats/min, respirations are 16 breaths/min, and blood pressure is 150/90 mmHg.
- A. Administer the dose and monitor the client's blood pressure regularly
- B. Apply a telemetry monitor before administering the dose
- C. Assess for orthostatic hypotension before administering the dose
- D. Withhold the scheduled dose and notify the healthcare provider
Correct answer: D
Rationale: The client's low heart rate of 48 beats/min indicates bradycardia, a potential side effect of labetalol. Administering the dose in this case could further lower the heart rate, potentially causing adverse effects. Therefore, it is crucial to withhold the scheduled dose and notify the healthcare provider for further assessment and guidance. Choice A is incorrect because administering the dose without addressing the bradycardia can exacerbate the condition. Choice B is not relevant in this situation as telemetry monitoring is not the priority. Choice C is also not the priority in this case, as the focus should be on the client's bradycardia and the potential adverse effects of administering labetalol.
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