HESI RN
Pharmacology HESI Quizlet
1. A client who is taking hydrochlorothiazide (HydroDIURIL, HCTZ) has been started on triamterene (Dyrenium) as well. The client asks the nurse why both medications are required. The nurse formulates a response, based on the understanding that:
- A. Both are weak potassium-losing diuretics.
- B. The combination of these medications prevents renal toxicity.
- C. Hydrochlorothiazide is less expensive, so using a combination of diuretics is cost-effective.
- D. Triamterene is a potassium-sparing diuretic, whereas hydrochlorothiazide is a potassium-losing diuretic.
Correct answer: D
Rationale: The combination of triamterene and hydrochlorothiazide is used because triamterene is a potassium-sparing diuretic, which helps retain potassium, while hydrochlorothiazide is a potassium-losing diuretic, which promotes potassium excretion. This combination helps balance potassium levels in the body, preventing imbalances that can occur when using potassium-losing diuretics alone.
2. A healthcare professional is planning to administer amlodipine (Norvasc) to a client. The healthcare professional plans to check which of the following before giving the medication?
- A. Respiratory rate
- B. Blood pressure and heart rate
- C. Heart rate and respiratory rate
- D. Level of consciousness and blood pressure
Correct answer: B
Rationale: Before administering amlodipine, it is important to check the client's blood pressure and heart rate. Amlodipine is known to lower blood pressure and heart rate as part of its mechanism of action. Monitoring these vital signs helps ensure the safety of the client and allows for appropriate assessment of the medication's effects post-administration.
3. The client with squamous cell carcinoma of the larynx is receiving bleomycin intravenously. The nurse caring for the client anticipates that which diagnostic study will be prescribed?
- A. Echocardiography
- B. Electrocardiography
- C. Cervical radiography
- D. Pulmonary function studies
Correct answer: D
Rationale: Bleomycin, when administered intravenously, can lead to interstitial pneumonitis and potentially progress to pulmonary fibrosis. Therefore, pulmonary function studies are essential to monitor lung function and detect any early signs of pulmonary toxicity. Other tests, such as regular pulmonary assessments, should also be conducted to ensure the safety and well-being of the client.
4. Sildenafil (Viagra) is prescribed to treat a client with erectile dysfunction. A nurse reviews the client's medical record and would question the prescription if which of the following is noted in the client's history?
- A. Neuralgia
- B. Insomnia
- C. Use of nitroglycerin
- D. Use of multivitamins
Correct answer: C
Rationale: The correct answer is C. Sildenafil (Viagra) enhances the vasodilating effect of nitric oxide and is contraindicated with the concurrent use of organic nitrates and nitroglycerin. Using nitroglycerin together with Viagra can lead to severe hypotension and cardiovascular collapse, making it unsafe to combine both medications.
5. A client is taking docusate sodium (Colace). The nurse monitors which of the following to determine whether the client is experiencing a therapeutic effect from this medication?
- A. Abdominal pain
- B. Reduction in steatorrhea
- C. Hematest-negative stools
- D. Regular bowel movements
Correct answer: D
Rationale: The therapeutic effect of docusate sodium (Colace) is to soften stools and promote regular bowel movements, making option D the correct choice. Monitoring for regular bowel movements would indicate that the medication is working as intended by relieving or preventing constipation. Options A, B, and C are not directly related to the therapeutic effect of docusate sodium. Abdominal pain (option A) is a symptom that might indicate a problem rather than a therapeutic effect. Reduction in steatorrhea (option B) and Hematest-negative stools (option C) are not specific outcomes associated with docusate sodium.
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