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A nurse is assessing a client suspected of having leukemia. Which laboratory test is a definitive diagnostic tool to confirm leukemia?

A.

Complete blood count (CBC)

B.

Urinalysis

C.

Chest X-ray

D.

Bone marrow biopsy

Answer and Explanation

The Correct Answer is D

A) This choice is incorrect because while a complete blood count (CBC) is an important initial screening test for leukemia, it alone is not definitive for diagnosis. A CBC may show abnormal levels of blood cells, prompting further investigation, including a bone marrow biopsy.

B) This choice is incorrect because a urinalysis is not used to diagnose leukemia. It is a test used to evaluate kidney function and detect urinary abnormalities.

C) This choice is incorrect because a chest X-ray is not a definitive diagnostic tool for leukemia. It is primarily used to assess the lungs and chest organs for conditions such as pneumonia or tumors.

D) This choice is correct. A bone marrow biopsy is a definitive diagnostic tool to confirm leukemia. In this procedure, a small sample of bone marrow is taken from the hipbone or breastbone and examined under a microscope to determine if leukemia cells are present. It allows for the identification of abnormal cells in the bone marrow, helping to establish the diagnosis and type of leukemia.


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Related Questions

Correct Answer is B

Explanation

A) This choice is incorrect because assessing bone density and strength is not the primary purpose of a CT scan in the diagnostic evaluation of leukemia.

B) This choice is correct. A CT scan is commonly used to identify enlarged lymph nodes and organs, which can occur in leukemia as a result of cancerous cell proliferation and infiltration into the lymphatic system and other organs.

C) This choice is incorrect because measuring lung capacity is not the primary purpose of a CT scan in the diagnostic evaluation of leukemia.

D) This choice is incorrect because monitoring cardiac function is not the primary goal of a CT scan in the diagnostic evaluation of leukemia.

Correct Answer is D

Explanation

A) This choice is incorrect because gentle stretching exercises are generally safe and do not significantly increase the risk of bleeding in clients with low platelet counts.

B) This choice is incorrect because deep vein thrombosis (DVT) prophylaxis, such as leg exercises and anti-embolism stockings, is essential to prevent blood clots but is not directly related to bleeding risk.

C) This choice is incorrect because using a soft-bristled toothbrush helps prevent gum bleeding and trauma to the oral mucosa but does not address the risk of bleeding from other areas.

D) This choice is correct. Vigorous nose blowing can lead to trauma to the nasal mucosa and increase the risk of bleeding, especially in clients with low platelet counts who are prone to bleeding episodes.

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