Nursing Elites

1. A client receiving warfarin (Coumadin) therapy should have which of the following laboratory results reviewed to evaluate the effectiveness of the therapy?

• A. Complete blood count (CBC).
• B. Prothrombin time (PT).
• C. International normalized ratio (INR).
• D. Partial thromboplastin time (PTT).

Correct answer: C

Rationale: The correct answer is C: International normalized ratio (INR). The INR is the most appropriate laboratory result to review when evaluating the effectiveness of warfarin (Coumadin) therapy. Warfarin is an anticoagulant medication, and the INR helps determine if the dosage is within a therapeutic range to prevent clotting or bleeding complications. Choice A, a Complete Blood Count (CBC), provides information about the cellular components of blood but does not directly assess the anticoagulant effects of warfarin. Choice B, Prothrombin time (PT), measures the time it takes for blood to clot but is not as specific for monitoring warfarin therapy as the INR. Choice D, Partial Thromboplastin Time (PTT), evaluates the intrinsic pathway of coagulation and is not the primary test used to monitor warfarin therapy.

2. In the staging process of Hodgkin's disease, what does Stage I indicate?

• A. Involvement of a single lymph node.
• B. Involvement of two or more lymph nodes on the same side of the diaphragm.
• C. Involvement of lymph node regions on both sides of the diaphragm.
• D. Involvement of diffuse disease of one or more extralymphatic organs.

Correct answer: A

Rationale: In the staging process of Hodgkin's disease, Stage I signifies the involvement of a single lymph node. This stage indicates localized disease with the disease being limited to a single lymph node or a group of adjacent nodes. Choices B, C, and D are incorrect because they describe more extensive involvement of lymph nodes, both sides of the diaphragm, or extralymphatic organs, which would correspond to higher stages in the staging system.

3. A client with chronic renal failure is receiving sodium polystyrene sulfonate (Kayexalate). The nurse should monitor the client for which of the following?

• A. Hyponatremia.
• B. Hypokalemia.
• C. Hyperkalemia.
• D. Hypocalcemia.

Correct answer: C

Rationale: Correct Answer: The correct answer is C, 'Hyperkalemia.' Sodium polystyrene sulfonate (Kayexalate) is a medication used to treat high potassium levels (hyperkalemia) by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Therefore, the nurse should monitor the client for changes in potassium levels to assess the effectiveness of the medication and prevent potential complications related to hyperkalemia. Choice A, 'Hyponatremia,' is incorrect as Kayexalate does not primarily affect sodium levels. Choice B, 'Hypokalemia,' is incorrect as Kayexalate is used to treat high potassium levels, not low. Choice D, 'Hypocalcemia,' is incorrect as Kayexalate does not directly impact calcium levels.

4. A nurse has a prescription to discontinue a client’s nasogastric tube. The nurse auscultates the client’s bowel sounds, positions the client properly, and flushes the tube with 15 mL of air to clear secretions. The nurse then instructs the client to take a deep breath and:

• A. Exhale during tube removal
• B. Bear down during tube removal
• C. Hold the breath during tube removal
• D. Breathe normally during tube removal

Correct answer: C

Rationale: The correct answer is to instruct the client to hold their breath during tube removal. This is because the airway may be temporarily obstructed during the removal process. By holding their breath, the client can help prevent aspiration or discomfort during the removal of the nasogastric tube. Choices A, B, and D are incorrect because exhaling, bearing down, or breathing normally during tube removal may not provide the necessary protection against aspiration or discomfort that holding the breath does.

5. The nurse is caring for a patient who has had severe vomiting. The patient’s serum sodium level is 130 mEq/L. The nurse will expect the patient’s provider to order which treatment?

• A. Diuretic therapy
• B. Intravenous hypertonic 5% saline
• C. Intravenous normal saline 0.9%
• D. Oral sodium supplements

Correct answer: C

Rationale: In this scenario, the patient has hyponatremia with a serum sodium level of 130 mEq/L. For a serum sodium level between 125 and 135 mEq/L, the appropriate treatment is intravenous normal saline 0.9%. Normal saline helps to increase the sodium content in the vascular fluid. Diuretic therapy would exacerbate sodium and fluid depletion, which is not suitable for a patient already dehydrated from severe vomiting. Intravenous hypertonic 5% saline is typically reserved for severe hyponatremia with a serum sodium level below 120 mEq/L. Oral sodium supplements are not feasible in this case as the patient is vomiting and may not be able to tolerate oral intake easily.

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