Correct Answer: C

Rationale: In clients experiencing neutropenia due to chemotherapy, the immune system is significantly compromised, leaving the client highly susceptible to infections. Meticulous hand hygiene is one of the most effective ways to prevent infections in neutropenic patients. Teaching the client and their family the importance of frequent and proper handwashing helps reduce the transmission of harmful pathogens that could lead to severe infections in the neutropenic client. This simple but essential intervention is crucial in maintaining a safe environment.

Correct Answer: C

Rationale: Hydroxyurea is effective in lowering the platelet count for patients with ET.

Correct Answer: B

Rationale: An increased lymphocyte count (lymphocytosis) is always present in patients with CLL.

Correct Answer: B

Rationale: In the case of lung cancer that has metastasized to the bones and liver, lymphatic circulation is a key mechanism by which cancer cells spread from the primary tumor site to distant organs. Cancer cells can invade nearby lymphatic vessels and travel through the lymphatic system, eventually reaching lymph nodes and spreading to other tissues and organs. This route is significant in the metastasis of many types of cancer, including lung cancer.

Correct Answer: C

Rationale: In order to meets the patients needs, the nurse must first identify the specific nature of these needs.