ATI RN
ATI Capstone Pharmacology Assessment 1
1. A nurse is reviewing a client's medication regimen. Which of the following medications places the client at increased risk for digoxin toxicity?
- A. Calcium channel blockers
- B. Potassium-sparing diuretics
- C. Beta blockers
- D. Loop diuretics
Correct answer: D
Rationale: The correct answer is D, Loop diuretics. Loop diuretics can lead to hypokalemia, which increases the risk for digoxin toxicity. Loop diuretics cause potassium loss, and hypokalemia can potentiate the toxic effects of digoxin. Choices A, B, and C are incorrect because calcium channel blockers, potassium-sparing diuretics, and beta blockers do not directly increase the risk of digoxin toxicity.
2. A nurse is preparing to administer metoprolol to a client with hypertension. Which of the following should the nurse assess prior to administering this medication?
- A. Temperature
- B. Heart rate
- C. Respiratory rate
- D. Blood pressure
Correct answer: D
Rationale: The correct answer is D: Blood pressure. Before administering metoprolol, a beta-blocker commonly used to treat hypertension, the nurse should assess the client's blood pressure. Metoprolol works by lowering blood pressure and reducing the workload on the heart. Assessing the blood pressure is crucial to ensure it is within the acceptable range to administer the medication safely. Choices A, B, and C (Temperature, Heart rate, Respiratory rate) are important assessments in general patient care but are not specifically required before administering metoprolol for hypertension.
3. A 45-year-old client is taking methylprednisolone. What pharmacologic action should the nurse expect with this therapy?
- A. Suppression of beta2 receptors
- B. Suppression of airway mucus production
- C. Fortification of bones
- D. Suppression of candidiasis
Correct answer: B
Rationale: The correct answer is B: Suppression of airway mucus production. Corticosteroids like methylprednisolone are known to suppress airway mucus production. This action helps in reducing inflammation and swelling in the airways, making breathing easier for individuals with conditions like asthma or COPD. Choices A, C, and D are incorrect. Suppression of beta2 receptors is more related to beta-blockers, fortification of bones is associated with medications like bisphosphonates, and suppression of candidiasis is not a typical pharmacologic action of methylprednisolone.
4. A client has been prescribed vasopressin for the treatment of diabetes insipidus. What is the expected pharmacologic action of this medication?
- A. To stimulate the pancreas to secrete insulin
- B. To slow the absorption of glucose in the intestine
- C. To increase reabsorption of water in the renal tubules
- D. To increase blood pressure
Correct answer: C
Rationale: The correct answer is C: To increase reabsorption of water in the renal tubules. Vasopressin, also known as antidiuretic hormone (ADH), works by increasing the reabsorption of water in the renal tubules, which helps to concentrate urine and reduce excessive urination in diabetes insipidus. Choice A is incorrect as vasopressin does not stimulate the pancreas to secrete insulin. Choice B is incorrect as vasopressin does not affect the absorption of glucose in the intestine. Choice D is incorrect as vasopressin's primary action is not to increase blood pressure, although it can have some vasoconstrictive effects.
5. A nurse is administering metformin to a client with type 2 diabetes. Which of the following adverse effects should the nurse monitor for in this client?
- A. Diarrhea
- B. Hyperglycemia
- C. Hypoglycemia
- D. Lactic acidosis
Correct answer: D
Rationale: The correct answer is D, Lactic acidosis. Lactic acidosis is a rare but serious adverse effect of metformin use. Metformin is not known to cause hyperglycemia or hypoglycemia. Diarrhea is a common gastrointestinal side effect of metformin but is not as serious as lactic acidosis, which requires immediate medical attention.
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