Correct Answer: C

Rationale: The correct answer is to gently inquire about advance directives. Superior vena cava syndrome is often a late-stage manifestation, indicating a serious condition. Discussing advance directives with the client is crucial to ensure their wishes are known in case of deterioration. Administering allopurinol (Choice A) is not indicated for superior vena cava syndrome. Assessing the client's serum potassium level (Choice B) is not the priority when managing this syndrome. Emergency surgery (Choice D) is not typically the initial treatment for superior vena cava syndrome.

Correct Answer: A

Rationale: The correct answer is A. Secondary MDS can occur at any age and results from prior toxic exposure to chemicals, including chemotherapeutic medications. Asking about exposure to toxic chemicals in previous jobs directly addresses the potential etiology of this patient's health problem. Choices B, C, and D are not as directly related to the etiology of secondary MDS. Recurrent infections (Choice B) are not a known cause of MDS. Family history (Choice C) is more pertinent to primary MDS, which has a genetic component, while sun exposure (Choice D) is not associated with the etiology of MDS.

Correct Answer: A

Rationale: The correct answer is A, Hypercalcemia. In multiple myeloma, bone destruction can lead to the release of calcium from the bones into the bloodstream, causing hypercalcemia. This imbalance is commonly seen in patients with multiple myeloma. Choice B, Hyperproteinemia, is not typically associated with bone destruction in multiple myeloma. Choice C, Elevated serum viscosity, and Choice D, Elevated RBC count, are not directly related to the bone destruction seen in multiple myeloma.

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: B

Rationale: In this scenario, the appropriate nursing intervention for serosanguineous drainage from the wound is to change the dressing as prescribed. This helps in maintaining wound cleanliness, preventing infection, and promoting proper wound healing. Clamping the Penrose drain (Choice A) is not indicated as the drainage is from the wound itself, not the drain. Notifying the healthcare provider (Choice C) may be necessary if there are signs of infection or other concerning issues, but changing the dressing should be done first. Removing and replacing the perineal packing (Choice D) is not the priority in this situation unless specifically prescribed by the healthcare provider after assessing the wound.