Nursing Elites

1. What is the primary action of warfarin as an anticoagulant?

• A. Prevents the formation of blood clots
• B. Dissolves existing blood clots
• C. Dilates coronary arteries
• D. Treats rhythm disturbances

Correct answer: A

Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.

2. Which of the following is not related to drug toxicity of Atenolol?

• A. CHF
• B. Tachycardia
• C. AV block
• D. Sedative appearance

Correct answer: B

Rationale: Atenolol, a beta-blocker, is not typically associated with tachycardia. Instead, drug toxicity of Atenolol is more commonly linked to bradycardia due to its beta-blocking effects on the heart's electrical conduction system. Symptoms of Atenolol toxicity may include heart failure (CHF), AV block, and a sedative appearance, but not tachycardia.

3. A client with Addison's disease is being admitted for a total hip arthroplasty. The client takes hydrocortisone. What is the nurse's priority action?

• A. Administering a supplemental dose of hydrocortisone
• B. Instructing the client about coughing and deep breathing
• C. Collecting additional information from the client about his history of Addison's disease
• D. Inserting an indwelling urinary catheter

Correct answer: A

Rationale: The priority action for a client with Addison's disease undergoing surgery who takes hydrocortisone is to administer a supplemental dose of hydrocortisone. Acute adrenal insufficiency (adrenal crisis) is a significant risk during surgery due to the stress placed on the body. Supplemental doses help prevent acute adrenal insufficiency and ensure the client's safety during the surgical procedure. Instructing the client about coughing and deep breathing is important post-operatively but not the priority before surgery. Collecting additional information about the client's history of Addison's disease is relevant but not the priority action before surgery. Inserting an indwelling urinary catheter is not the priority action in this scenario.

4. When teaching a client with a new prescription for Clopidogrel, which laboratory value should the nurse monitor to assess for potential adverse effects?

• A. White blood cell count
• B. Platelet count
• C. Hemoglobin
• D. Blood glucose

Correct answer: B

Rationale: Clopidogrel is an antiplatelet medication that works by reducing the formation of blood clots. Therefore, the nurse should monitor the client's platelet count to assess for potential bleeding complications. A decrease in platelet count could indicate a risk of bleeding, which is an adverse effect associated with Clopidogrel therapy. Monitoring other laboratory values like white blood cell count, hemoglobin, and blood glucose is important for assessing overall health status but is not directly related to the potential adverse effects of Clopidogrel.

5. A nurse is providing discharge teaching to a client who has a new prescription for Warfarin. Which of the following statements should the nurse include?

• A. You should avoid taking aspirin for headaches while on this medication.
• B. You should use a soft toothbrush to brush your teeth.
• C. You should avoid foods that are rich in vitamin K.
• D. You should avoid prolonged exposure to sunlight.

Correct answer: B

Rationale: The correct statement to include in discharge teaching for a client prescribed Warfarin is to use a soft toothbrush to prevent gum bleeding. Warfarin is an anticoagulant that increases the risk of bleeding, so using a soft toothbrush can help prevent gum injury and bleeding. Choice A is incorrect because aspirin, another blood-thinning medication, should generally be avoided while on Warfarin to reduce the risk of bleeding. Choice C is incorrect because clients on Warfarin should maintain a consistent intake of vitamin K-rich foods rather than avoid them completely. Choice D is unrelated to the medication and not a priority teaching point for a client prescribed Warfarin.

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