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 practical nurse (PN) is preparing to administer a scheduled dose of furosemide to a client. Which laboratory value is most important for the PN to review before administering the medication?
- A. Serum calcium level
- B. Serum potassium level
- C. Serum sodium level
- D. Serum magnesium level
Correct answer: B
Rationale: The correct answer is to review the client's serum potassium level before administering furosemide. Furosemide, a loop diuretic, can lead to hypokalemia, making it crucial to assess potassium levels to prevent potential complications like cardiac arrhythmias associated with low potassium levels.
3. A client with diabetes mellitus type 2 is prescribed dapagliflozin. The nurse should monitor for which potential adverse effect?
- A. Genital infections
- B. Hypoglycemia
- C. Hyperglycemia
- D. Nausea
Correct answer: A
Rationale: The correct answer is A: Genital infections. Dapagliflozin, a medication used in diabetes mellitus type 2, is associated with an increased risk of genital infections. Its mechanism of action involves promoting glucose excretion through the urine, creating a favorable environment for microbial growth in the genital area. Monitoring for genital infections is crucial when a client is prescribed dapagliflozin. Hypoglycemia (choice B) is not a common adverse effect of dapagliflozin since it does not directly lower blood glucose levels. Hyperglycemia (choice C) is also unlikely as dapagliflozin is intended to help lower blood glucose levels. Nausea (choice D) is a less common side effect of dapagliflozin compared to genital infections.
4. What instructions should the practical nurse (PN) review with a client diagnosed with vaginal trichomoniasis who is prescribed oral metronidazole?
- A. Avoid direct sunlight exposure and use a sunscreen product with SPF100.
- B. The client's sexual partner(s) should also be treated.
- C. Avoid vinegar or commercial product douches.
- D. Eliminate dairy products from the diet during treatment.
Correct answer: B
Rationale: The correct answer is B. The practical nurse should instruct the client that their sexual partner(s) should also be treated when dealing with vaginal trichomoniasis. This is crucial to prevent reinfection as sexual intercourse is the route of spread for this infection. Choices A, C, and D are incorrect. While avoiding direct sunlight exposure and using sunscreen is important for some medications, it is not specifically related to metronidazole treatment for trichomoniasis. Avoiding vinegar or commercial douches is a general recommendation for vaginal health and not specific to this infection. Eliminating dairy products from the diet is not a typical instruction for clients prescribed metronidazole for vaginal trichomoniasis.
5. A client with asthma is prescribed montelukast. The nurse should instruct the client that this medication is used for which purpose?
- A. Immediate relief of acute asthma attacks
- B. Long-term control of asthma symptoms
- C. Treatment of exercise-induced bronchospasm
- D. Immediate relief of allergic rhinitis symptoms
Correct answer: B
Rationale: Montelukast is a leukotriene receptor antagonist used for the long-term control of asthma symptoms by reducing inflammation in the airways. It is not typically used for immediate relief during acute asthma attacks, where short-acting bronchodilators are more appropriate. Montelukast does not specifically target exercise-induced bronchospasm or allergic rhinitis symptoms. Therefore, the correct answer is B. Choice A is incorrect because montelukast is not for immediate relief of acute asthma attacks. Choice C is incorrect as montelukast is not primarily used to treat exercise-induced bronchospasm. Choice D is incorrect because montelukast is not indicated for immediate relief of allergic rhinitis symptoms.
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