Correct Answer: B

Rationale: The correct answer is B: Nonmaleficence. Nonmaleficence is the ethical principle that emphasizes the obligation to do no harm, making it crucial in medical decision-making. In the context of a bone marrow transplant for a client with leukemia, the primary concern is to minimize harm and avoid causing any unnecessary suffering or adverse effects. Choices A, C, and D are incorrect: Justice relates to fairness in resource allocation and treatment decisions, Autonomy involves respecting the patient's right to make decisions about their own care, and Beneficence refers to the obligation to act in the patient's best interest and promote their well-being, which may involve some level of risk or harm for overall benefit.

Correct Answer: B

Rationale: The correct answer is B: Nonmaleficence. Nonmaleficence is the ethical principle that emphasizes the obligation to do no harm, making it crucial in medical decision-making. In the context of a bone marrow transplant for a client with leukemia, the primary concern is to minimize harm and avoid causing any unnecessary suffering or adverse effects. Choices A, C, and D are incorrect: Justice relates to fairness in resource allocation and treatment decisions, Autonomy involves respecting the patient's right to make decisions about their own care, and Beneficence refers to the obligation to act in the patient's best interest and promote their well-being, which may involve some level of risk or harm for overall benefit.

Correct Answer: C

Rationale: After placing the patient back in bed, the nurse should notify the health care provider. This is important because the health care provider needs to be informed of the incident and assess the patient further to ensure no underlying injuries or issues exist. Re-assessing the patient is crucial but notifying the health care provider takes precedence in this situation. Completing an incident report is important for documentation purposes but not the immediate next step. Doing nothing is incorrect as there was an incident involving a fall that needs further evaluation.

Correct Answer: B

Rationale: Tachycardia and low blood pressure are indicative of worsening dehydration in a patient. Tachycardia is the body's compensatory mechanism to maintain cardiac output in response to decreased intravascular volume, while low blood pressure reflects inadequate perfusion due to decreased fluid levels. Bradycardia and shallow respirations are not typical findings in worsening dehydration, and clear lung sounds do not directly correlate with the severity of dehydration.

Correct Answer: C

Rationale: Measuring the calf circumference of both legs is crucial when assessing for DVT in an immobile patient. A significant increase in the circumference of one calf compared to the other suggests the presence of a deep vein thrombosis. Option A is incorrect because rubbing the lower leg may dislodge a clot if present. Option B is incorrect as elastic stockings should not be removed frequently as this can increase the risk of clot formation. Option D is incorrect as dorsiflexing the foot can lead to pain and should not be done to assess for DVT.