ATI RN
ATI Capstone Pharmacology Assessment 1
1. A nurse is caring for a client prescribed enoxaparin for deep vein thrombosis prophylaxis. Which of the following client assessments requires immediate intervention?
- A. Platelet count of 95,000/mm³
- B. Blood pressure of 145/90 mmHg
- C. Heart rate of 95 beats per minute
- D. Pain at the injection site
Correct answer: A
Rationale: A platelet count of 95,000/mm³ requires immediate intervention as it is low and increases the risk of bleeding, which is a potential complication of enoxaparin therapy. Low platelet counts can predispose the patient to hemorrhage, and administering anticoagulants like enoxaparin in such cases can further increase the bleeding risk. Monitoring platelet counts is crucial during anticoagulant therapy to prevent serious bleeding complications. The other options do not pose immediate risks related to enoxaparin therapy. A slightly elevated blood pressure, a heart rate of 95 beats per minute, and pain at the injection site are common findings that may not warrant immediate intervention in this context.
2. A nurse is preparing to administer an intramuscular injection to an adult client. At what angle should the nurse administer the medication using the ventrogluteal site?
- A. a 45-degree angle
- B. a 60-degree angle
- C. a 75-degree angle
- D. a 90-degree angle
Correct answer: D
Rationale: Intramuscular injections in the ventrogluteal site should be administered at a 90-degree angle. This angle ensures that the medication reaches the muscle tissue effectively. Angles less than 90 degrees can cause subcutaneous injection instead of intramuscular, leading to slower absorption of the medication. Angles greater than 90 degrees risk hitting bone or nerves, causing unnecessary pain or injury. Therefore, the correct angle for administering intramuscular injections in the ventrogluteal site is 90 degrees.
3. 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.
4. A healthcare provider is preparing to administer a measles, mumps, and rubella (MMR) vaccine to an adult client. Which of the following is a contraindication to this vaccine?
- A. The possibility of pregnancy within 4 weeks
- B. Client allergy to strawberries
- C. Client history of genital herpes
- D. The possibility of overseas travel in the next month
Correct answer: A
Rationale: The correct answer is A. Pregnancy or the possibility of pregnancy within 4 weeks is a contraindication for receiving the MMR vaccine. Choice B, client allergy to strawberries, is not a contraindication to the MMR vaccine. Choice C, client history of genital herpes, is not a contraindication for the MMR vaccine. Choice D, the possibility of overseas travel in the next month, is not a contraindication to the MMR vaccine.
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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