Nursing Elites

1. A nurse is caring for a client who is prescribed warfarin. Which of the following laboratory tests should the nurse review to evaluate the therapeutic effect of this medication?

• A. aPTT
• B. INR
• C. Serum glucose
• D. Bilirubin

Correct answer: B

Rationale: The correct answer is B: INR. The International Normalized Ratio (INR) is the most reliable test for evaluating the therapeutic effects of warfarin therapy. INR measures the clotting ability of the blood and helps determine if the dosage of warfarin is within the therapeutic range. Choice A, aPTT, is not typically used to monitor the effects of warfarin. Choice C, Serum glucose, and choice D, Bilirubin, are not relevant to monitoring the therapeutic effect of warfarin.

2. A client receiving epoetin alfa therapy for anemia is being monitored for therapeutic effects. Which of the following laboratory values indicates the medication is effective?

• A. White blood cell count
• B. Hematocrit
• C. Platelet count
• D. Red blood cell count

Correct answer: B

Rationale: The correct answer is B: Hematocrit. An increase in hematocrit levels indicates the effectiveness of epoetin alfa in treating anemia. Hematocrit reflects the percentage of red blood cells in the blood, so an increase in hematocrit signifies an improvement in the patient's red blood cell count and oxygen-carrying capacity. Choices A, C, and D are incorrect because white blood cell count, platelet count, and red blood cell count do not directly reflect the therapeutic effects of epoetin alfa in treating anemia.

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 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.

5. A nurse is caring for a client who has been prescribed amoxicillin. Which of the following client history findings requires the nurse to clarify the medication prescription?

• A. Hypertension
• B. Peptic ulcer disease
• C. Asthma
• D. Gastroesophageal reflux disease

Correct answer: C

Rationale: The correct answer is C. Clients with a history of asthma should avoid amoxicillin due to potential hypersensitivity reactions. Amoxicillin can trigger asthma exacerbations in some individuals. Hypertension (choice A), peptic ulcer disease (choice B), and gastroesophageal reflux disease (choice D) are not contraindications for amoxicillin use, so they do not require the nurse to clarify the medication prescription in this case.

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