Correct Answer: C

Rationale: The correct precaution to implement when caring for a client with Clostridium difficile infection is to wear a gown and gloves when providing care. Clostridium difficile is primarily spread through contact with feces, so wearing personal protective equipment like gowns and gloves is crucial in preventing the spread of the infection. Placing the client in a negative pressure room (Choice A) is not necessary for Clostridium difficile. While wearing an N95 respirator mask (Choice B) is important for airborne precautions, it is not required for Clostridium difficile. Placing a face mask on the client (Choice D) is not a standard precaution for preventing the spread of Clostridium difficile.

Correct Answer: C

Rationale: The correct answer is C: Diaphoresis. Diaphoresis, which is excessive sweating, is a common manifestation of acute pain caused by increased sympathetic nervous system activity. This response is the body's way of trying to regulate body temperature during the stress response. Choices A, B, and D are incorrect. Hypertension (Choice A) and tachycardia (not bradycardia as in Choice B) are more likely responses to acute pain due to sympathetic nervous system activation. Piloerection (Choice D), also known as goosebumps, is not a typical manifestation of acute pain.

Correct Answer: D

Rationale: The client who is 1 day postoperative following a vertebroplasty is stable and can be discharged early. In an emergency response situation, it is crucial to prioritize clients who are medically stable and do not require immediate hospital care. The client with COPD and a respiratory rate of 44/min needs close monitoring and intervention. The client with cancer and a sealed implant for radiation therapy requires specialized care and follow-up. The client receiving heparin for deep-vein thrombosis needs ongoing anticoagulant therapy and monitoring, making early discharge not appropriate.

Correct Answer: D

Rationale: The correct answer is D, INR. The International Normalized Ratio (INR) is used to monitor the therapeutic effect of warfarin and to adjust the dose as needed. While Prothrombin time (PT) and activated Partial Thromboplastin Time (aPTT) are also related to coagulation studies, monitoring INR specifically helps in managing warfarin therapy. Hemoglobin, on the other hand, is not typically monitored in relation to warfarin therapy.

Correct Answer: C

Rationale: Clients taking warfarin should avoid foods high in vitamin K, as it can interfere with the effectiveness of the medication.