which lab value is critical for monitoring warfarin therapy which lab value is critical for monitoring warfarin therapy
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Nursing Elites

ATI RN

ATI RN Comprehensive Exit Exam

1. Which lab value is critical for monitoring warfarin therapy?

Correct answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial for monitoring warfarin therapy as it helps assess the therapeutic effectiveness and bleeding risks associated with the medication. INR measures the clotting tendency of blood, which is essential in determining the appropriate dosage of warfarin. Monitoring platelet count (B), sodium levels (C), or calcium levels (D) is not primarily used for assessing warfarin therapy. Platelet count is more relevant in assessing bleeding disorders, while sodium and calcium levels are typically monitored for different medical conditions unrelated to warfarin therapy.

2. Which of the following mechanisms can facilitate the development of diverticulosis into diverticulitis?

Correct answer: D

Rationale: The correct answer is D. Undigested food blocking the diverticulum can lead to bacterial invasion, causing inflammation and turning diverticulosis into diverticulitis. Choices A, B, and C do not directly facilitate the development of diverticulitis. Choice A involves a different mechanism related to laxative use, choice B describes a complication of chronic constipation but does not necessarily lead to diverticulitis, and choice C refers to a different condition involving herniation of the intestinal mucosa.

3. How will taking an oral contraceptive affect the physiologically of an insulin-dependent diabetic patient?

Correct answer: C

Rationale: Taking an oral contraceptive can lead to an increase in blood glucose levels in insulin-dependent diabetic patients. This occurs due to the hormonal changes induced by the contraceptive, which can impact insulin sensitivity. Therefore, diabetic patients need to closely monitor their blood glucose levels when starting an oral contraceptive to prevent complications. The other choices are incorrect as oral contraceptives do not typically lead to an increase in heart rate, risk of hypoglycemia, or risk of metabolic alkalosis in this context.

4. Parenteral penicillin can be administered as an:

Correct answer: A

Rationale: Penicillin can be administered intramuscularly or intravenously.

5. The client is complaining of painful swallowing secondary to mouth ulcers. Which statement by the client indicates appropriate management?

Correct answer: D

Rationale: The correct answer is D. Avoiding irritants like spicy foods, tobacco, and alcohol is crucial in managing mouth ulcers as they can further irritate and worsen the condition. Choice A is incorrect as using a soft-bristle toothbrush may still cause discomfort. Choice B is incorrect as alcohol-containing mouthwashes can be irritating. Choice C is incorrect as swallowing antifungal solution meant for topical use is not appropriate and can be harmful.

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