Correct Answer: C

Rationale: Tuberculosis is transmitted through airborne particles, so airborne precautions are necessary to prevent the spread of the disease. Airborne precautions (Choice C) involve measures such as negative pressure rooms and N95 respirators to prevent the transmission of infectious agents that remain infectious over long distances when suspended in the air. Contact precautions (Choice A) are used for diseases that spread through direct contact with the patient or their environment. Droplet precautions (Choice B) are for diseases transmitted through respiratory droplets, typically over short distances. Protective environment (Choice D) is used for clients who are immunocompromised to protect them from environmental pathogens, not for diseases like tuberculosis that spread through the air.

Correct Answer: A

Rationale: When the cerebellum is damaged, it leads to impaired balance. The cerebellum plays a crucial role in coordinating movements and maintaining balance. Therefore, assessing the patient's balance is essential in determining the extent of cerebellar damage. Options B, C, and D are incorrect because hemiplegia refers to paralysis of one side of the body, muscle sprain is a soft tissue injury, and lower extremity paralysis involves loss of function in the lower limbs. These conditions are not directly associated with damage to the cerebellum.

Correct Answer: A

Rationale: The correct answer is A. Clients taking warfarin need to be consistent with their vitamin K intake to maintain a balance in blood clotting. Avoiding foods high in vitamin K is essential as they can interfere with the medication's effectiveness. Choices B, C, and D are all correct statements regarding warfarin therapy. Regular blood testing to monitor INR levels ensures the medication is working effectively, taking the medication at the same time daily maintains a consistent level in the bloodstream, and using a soft toothbrush helps prevent gum bleeding due to warfarin's anticoagulant effects.

Correct Answer: A

Rationale: When communicating with a client who is hearing impaired, it is important to face the client and speak slowly. This helps the individual lip-read and understand the communication more easily. Speaking loudly can distort speech and make it harder for the person to understand. Written communication may not always be practical or accessible for the client, especially in real-time interactions. Gestures and body language can actually aid in communication by providing visual cues and context. Therefore, the best approach is to face the client, speak clearly at a moderate pace, and use gestures and body language to enhance understanding.

Correct Answer: C

Rationale: The correct answer is C: "This test will provide information about the function of your liver." Alanine aminotransferase (ALT) is an enzyme mainly found in the liver. An elevated ALT level may indicate liver damage or disease. Choices A, B, and D are incorrect because ALT is specifically related to liver function and not indicative of blood clot risk, heart performance, or kidney function.