Correct Answer: B

Rationale: When using a cane, it is crucial to move the cane forward first to provide support and enhance balance. Advancing the cane before the weaker or stronger leg helps widen the base of support, thereby improving stability during ambulation. Keeping the cane too far or too close to the body can affect its supportive function. Moreover, utilizing the cane solely for stair climbing limits its overall utility in maintaining balance and stability during regular walking.

Correct Answer: C

Rationale: The correct instruction to include when educating a client prescribed enoxaparin is to inject the medication once daily. Enoxaparin is typically administered via subcutaneous injection once daily, usually in the abdomen, to prevent blood clots.

Correct Answer: A

Rationale: Encouraging pursed-lip breathing is essential for clients with COPD as it aids in improving ventilation and gas exchange. This technique helps keep the airways open longer during exhalation, preventing air trapping and promoting more effective breathing. Administering oxygen, placing the client in a supine position, or restricting fluid intake are not primary interventions for managing COPD and may not address the specific respiratory needs of the client.

Correct Answer: A

Rationale: The correct instruction for a client with a new prescription for digoxin is to take their pulse before taking the medication. Digoxin can lead to bradycardia as a side effect, and monitoring the pulse helps in assessing the heart rate prior to medication administration. This precaution allows for the identification of any significant changes in heart rate that may require medical attention.

Correct Answer: D

Rationale: Having a second nurse witness the disposal of any unused portion of a controlled substance is a legal requirement to ensure proper disposal, prevent diversion, and maintain accountability. This practice helps in reducing the risk of misuse or unauthorized access to controlled substances, enhancing patient safety, and complying with legal regulations and standards.