Correct Answer: A

Rationale: Respect for autonomy involves allowing individuals to make decisions about their care. By asking if the client has questions before signing a consent form, the nurse is respecting the client's right to make informed choices and decisions regarding their healthcare. This action supports the principle of self-determination and autonomy in healthcare decision-making.

Correct Answer: D

Rationale: Assessing the client for allergies, particularly to iodine or shellfish, is crucial before a cardiac catheterization because the contrast dye used during the procedure can lead to allergic reactions. Identifying any allergies beforehand allows the healthcare team to take necessary precautions to prevent potential adverse reactions and ensure the client's safety.

Correct Answer: C

Rationale: Cotton balls can decrease pressure ulcers from the oxygen tubing. Continuous oxygen orders mean the client should wear the oxygen at all times. Oxygen fuels a fire. Wearing oxygen while grilling & smoking increases the risk for fire.

Correct Answer: C

Rationale: The most appropriate action for the nurse in this scenario is to teach the client about factor V Leiden testing. Factor V Leiden is an inherited thrombophilia that can lead to abnormal clotting events, including pulmonary embolism (PE). In a case where a client has no known risk factors for PE, testing for this genetic disorder is crucial to determine if it is a contributing factor. Encouraging the client to walk or referring them to smoking cessation classes, while beneficial for overall health, are not directly relevant to the development of a PE in this specific case. While it is true that sometimes no cause for a disease is found, prematurely assuming this without appropriate investigations may lead to missed opportunities for preventive measures or treatments.

Correct Answer: C

Rationale: In hypertension management, it is crucial for clients to limit or avoid alcohol consumption, not just refrain from excess. Alcohol can raise blood pressure and interfere with the effectiveness of antihypertensive medications, making it a key lifestyle modification for individuals with hypertension.