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. A nurse is preparing to administer ondansetron to a client. Which of the following therapeutic effects should the nurse expect from this medication?
- A. Decreased nausea
- B. Increased appetite
- C. Increased heart rate
- D. Relief of headache
Correct answer: A
Rationale: The correct answer is A: Decreased nausea. Ondansetron is classified as an antiemetic medication, which means it is used to relieve nausea and vomiting by blocking serotonin in the chemoreceptor trigger zone. Therefore, the nurse administering ondansetron should expect a therapeutic effect of decreased nausea. Choice B, increased appetite, is incorrect as ondansetron does not affect appetite. Choice C, increased heart rate, is incorrect as ondansetron does not have a direct effect on heart rate. Choice D, relief of headache, is also incorrect as the primary therapeutic effect of ondansetron is to alleviate nausea and vomiting, not headaches.
3. A nurse is reviewing a client's new prescription for albuterol. What client education should the nurse provide?
- A. You may experience a dry cough after taking this medication
- B. Use this medication only as a rescue inhaler
- C. Take this medication with food to avoid nausea
- D. Use this medication daily to prevent asthma attacks
Correct answer: B
Rationale: The correct answer is B. Albuterol is a rescue inhaler that should be used during asthma attacks to provide quick relief by opening the airways. Using it daily as a preventive measure is not recommended. Choice A is incorrect because a dry cough is not a common side effect of albuterol. Choice C is incorrect as albuterol does not need to be taken with food. Choice D is incorrect because albuterol is not meant to be used daily for asthma prevention.
4. A client is receiving magnesium sulfate for the management of preeclampsia. Which of the following client assessments should the nurse monitor to prevent complications of therapy?
- A. Bowel sounds
- B. Deep tendon reflexes
- C. Oxygen saturation
- D. Fluid balance
Correct answer: B
Rationale: The correct answer is deep tendon reflexes. Monitoring deep tendon reflexes is crucial to assess for magnesium toxicity during therapy for preeclampsia. Magnesium sulfate can lead to neuromuscular blockade, reflected by decreased or absent deep tendon reflexes. Assessing bowel sounds (choice A) is important for gastrointestinal function but is not directly related to magnesium sulfate therapy. Oxygen saturation (choice C) is vital for respiratory status but is not specifically linked to magnesium sulfate administration. Fluid balance (choice D) is essential but does not directly correlate with monitoring for complications of magnesium sulfate therapy in the context of preeclampsia.
5. 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.
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