Correct Answer: A

Rationale: The correct answer is A: Cardiac function. Imatinib can cause fluid retention and heart failure, so cardiac function should be closely monitored. Renal function (choice B) is not typically affected by imatinib. Liver function (choice C) is not the primary concern with this medication. Pulmonary function (choice D) is not directly impacted by imatinib therapy.

Correct Answer: D

Rationale: The correct answer is D: Invading healthy host tissues. Invasion is the process where malignant cells grow into surrounding healthy tissues, allowing the cancer to spread to other parts of the body. Choices A, B, and C are incorrect. Adhering to primary tumor cells does not involve the transfer of cells to other locations, inducing mutation of cells of another organ is not a mechanism of cell transfer, and phagocytizing healthy cells refers to the process of engulfing and digesting cells, which is not a method of cancer cell transfer.

Correct Answer: B

Rationale: The patient's signs of ecchymoses and petechiae are suggestive of thrombocytopenia, which is a common complication of leukemia. Thrombocytopenia is a condition characterized by a low platelet count, leading to abnormal bleeding. Checking the patient's most recent platelet level is crucial to assess the severity of thrombocytopenia and guide further interventions. Initiating measures to prevent venous thromboembolism (VTE) (Choice A) is not directly related to the patient's current signs. Placing the patient on protective isolation (Choice C) is not necessary for ecchymoses and petechiae. Ambulating the patient (Choice D) is not appropriate without addressing the underlying cause of abnormal bleeding.

Correct Answer: C

Rationale: The correct answer is C: Hematologic cancers. Survivors of Hodgkin lymphoma are at a high risk of developing second cancers, with hematologic cancers being the most common complication. Regular health assessments are crucial for early detection and management. Iron-deficiency anemia (A) is not a typical long-term complication of Hodgkin lymphoma treatment. Hemophilia (B) is a genetic bleeding disorder unrelated to Hodgkin lymphoma. Genitourinary cancers (D) are not the most common complication seen in survivors of Hodgkin lymphoma.

Correct Answer: C

Rationale: Monitoring hemoglobin and hematocrit is essential to assess the effectiveness of ruxolitinib in treating myelofibrosis. Ruxolitinib works by inhibiting JAK1 and JAK2, which are involved in the signaling pathways that regulate blood cell production. Therefore, monitoring hemoglobin and hematocrit levels can provide valuable information on how well the drug is managing the disease. Blood pressure, white blood cell count, and spleen size are not direct indicators of the treatment's effectiveness in myelofibrosis.