Correct Answer: A

Rationale: A warm shower can help alleviate stiffness, allowing the client to be more comfortable and mobile before the procedure. This intervention promotes increased comfort and mobility, which may help the client proceed with the procedure later in the day. Administering anti-inflammatory medication (Choice B) may be helpful but may take time to be effective, while range-of-motion exercises (Choice C) may be challenging for the client due to stiffness. Rescheduling the procedure (Choice D) does not address the immediate need to alleviate stiffness.

Correct Answer: A

Rationale: The correct action for the nurse to implement is to ask the client to discuss 'do not resuscitate' (DNR) wishes with her healthcare provider. This is important to ensure that the client makes informed decisions regarding her care. While documenting the client's wishes in her medical record is essential, it is crucial that the client discusses these wishes with the healthcare provider to understand the implications and have the DNR order legally documented. Asking the client to sign an advance directive is premature without a detailed discussion with the healthcare provider. Placing a 'Do Not Resuscitate' (DNR) order in the client's chart should only be done after the client has discussed and agreed upon this decision with the healthcare provider.

Correct Answer: B

Rationale: The correct answer is to place the client on bedrest. Placing the client on bedrest is the priority intervention as it helps prevent the risk of embolization from the DVT, which could lead to a life-threatening pulmonary embolism. Administering anticoagulant therapy, elevating the client's right leg, or applying compression stockings are important interventions in managing DVT but should come after ensuring the client is on bedrest to prevent the dislodgment of the clot.

Correct Answer: C

Rationale: The correct answer is C. A potassium level of 6.5 mEq/L is dangerously high, a condition known as hyperkalemia, and requires immediate intervention to prevent cardiac complications. Hyperkalemia can lead to life-threatening arrhythmias, making it crucial to notify the healthcare provider promptly. Choices A, B, and D do not indicate immediate life-threatening conditions. Elevated serum creatinine levels are expected in CKD, a hemoglobin level of 10 g/dl is within a reasonable range, and a blood glucose level of 150 mg/dl is not acutely concerning in this context.

Correct Answer: C

Rationale: A serum bicarbonate level of 18 mEq/L requires immediate intervention in a client with diabetic ketoacidosis (DKA). A low serum bicarbonate level indicates metabolic acidosis, which can be life-threatening. This condition needs urgent correction to restore acid-base balance. Serum glucose of 300 mg/dl, serum potassium of 5.5 mEq/L, and serum sodium of 135 mEq/L are abnormal values, but they do not pose an immediate threat to the client's life compared to the metabolic acidosis indicated by the low serum bicarbonate level.