Correct Answer: D

Rationale: The correct answer is to elevate the affected arm. Elevating the affected arm helps prevent lymphedema after a mastectomy. Choices A, B, and C are incorrect. 'Dangling arms at the bedside' does not provide any benefit after a mastectomy. 'Lying down on the affected chest' can cause discomfort and possible complications. 'Drinking plenty of fluids immediately after surgery' is not related to preventing lymphedema post-mastectomy.

Correct Answer: D

Rationale: The correct answer is D: 'Avoid visiting if you've had a recent infection.' Before a hematopoietic stem cell transplantation, it is essential for visitors to refrain from visiting if they have had a recent illness or vaccination to minimize the risk of infection to the patient. Choice A is incorrect because emphasizing a negative outcome is not beneficial to the patient or their family. Choice B is incorrect as it is not necessary to abstain from food for a hematopoietic stem cell transplantation. Choice C is irrelevant to the situation as wearing a hospital gown is not the key information for family and friends to be aware of.

Correct Answer: C

Rationale: The correct answer is C: Muscle weakness. In patients with multiple myeloma who have developed hypercalcemia, monitoring for muscle weakness is crucial. Hypercalcemia can lead to muscle weakness due to its effects on neuromuscular function. Choice A, increased heart rate, is more commonly associated with conditions like dehydration or anxiety rather than hypercalcemia. Choice B, decreased urine output, is commonly seen in conditions leading to acute kidney injury rather than hypercalcemia. Choice D, hypertension, is not a typical symptom of hypercalcemia and is more commonly associated with other conditions like uncontrolled high blood pressure.

Correct Answer: C

Rationale: In the context of AML, the 5-year survival rate significantly decreases with age. The 5-year survival rate for patients over 75 years old is less than 2% compared to 43% for those 50 years or younger, and 19% for those between 50 and 64 years. Choice A is incorrect as early diagnosis does not necessarily guarantee good outcomes in AML. Choice B is inaccurate as the 5-year survival rate is not approximately 50% for older adults with AML. Choice D is incorrect as survival rates for AML patients are influenced by various factors beyond just the pre-illness level of health.

Correct Answer: A

Rationale: The correct action by the nurse is to assess the client's gait and balance. Severe low back pain in a client with a history of prostate cancer may indicate spinal cord compression, a serious complication. Assessing gait and balance can help determine if there is any spinal cord involvement, which requires immediate medical attention. Asking about changes in urinary symptoms (choice B) is important to assess for possible urinary obstruction, but assessing gait and balance takes precedence due to the risk of spinal cord compression. Documenting the report thoroughly (choice C) is essential but not the most immediate action needed. Inquiring about recent activities (choice D) is not as critical as assessing for spinal cord involvement.