ATI RN
ATI Capstone Pharmacology Assessment 1
1. 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.
2. When administering amlodipine to a client with hypertension, what adverse effect should the nurse monitor for?
- A. Constipation
- B. Facial flushing
- C. Hypotension
- D. Jaundice
Correct answer: C
Rationale: The correct answer is C, Hypotension. Amlodipine is a calcium channel blocker commonly used to treat hypertension. One of the main adverse effects of amlodipine is hypotension, leading to low blood pressure. The nurse should monitor the client for signs of hypotension such as dizziness, lightheadedness, or fainting. Choices A, B, and D are incorrect because constipation, facial flushing, and jaundice are not typically associated with amlodipine administration.
3. 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.
4. A nurse is caring for a client prescribed digoxin. Which of the following should alert the nurse to possible digitalis toxicity?
- A. Anorexia and weakness
- B. Hyperactivity and hunger
- C. Tachycardia and increased urination
- D. Polyphagia and polydipsia
Correct answer: A
Rationale: The correct answer is A: Anorexia and weakness. These symptoms are early indicators of potential digitalis toxicity. Anorexia refers to a loss of appetite, which can be a sign of toxicity, and weakness can indicate an issue with digoxin. Choices B, C, and D are incorrect. Hyperactivity and hunger, tachycardia and increased urination, as well as polyphagia and polydipsia are not typically associated with digitalis toxicity.
5. A nurse is caring for a client prescribed clopidogrel. Which of the following client histories is a contraindication to the administration of this medication?
- A. Recent surgery
- B. Peptic ulcer disease
- C. Bleeding disorder
- D. Uncontrolled hypertension
Correct answer: D
Rationale: The correct answer is D: Uncontrolled hypertension. Clopidogrel should not be administered to clients with uncontrolled hypertension due to the increased risk of bleeding. Recent surgery, peptic ulcer disease, and bleeding disorders are not absolute contraindications for clopidogrel administration.
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