Correct Answer: D

Rationale: The correct answer is D because clients with Alzheimer's disease can be prone to wandering and getting lost. Providing supervision can help prevent injuries and ensure their safety. Choices A, B, and C are incorrect because explaining procedures clearly, encouraging varied activities, and using simple communication are important but not specifically focused on the safety aspect of preventing clients from getting lost or injured.

Correct Answer: D

Rationale: The correct answer is D. The nurse should instruct the client to avoid corticosteroids and vitamin C prior to testing to prevent false-positive results. Choice A is incorrect because stool samples from bowel movements, not from digital rectal examinations, are used for FOBT. Choice B is incorrect because a stimulant laxative is not typically prescribed before FOBT; rather, the client is instructed to follow specific dietary restrictions. Choice C is incorrect because biennial fecal occult blood testing for colorectal cancer screening usually begins at 50 years old, not 40.

Correct Answer: B

Rationale: The correct answer is B because shortness of breath is an indication of transplant rejection, along with other manifestations like fatigue, edema, bradycardia, and hypotension. Choice A is incorrect because immunosuppressant medications are usually taken for life to prevent rejection. Choice C is incorrect as the surgical site may take longer to heal fully. Choice D is incorrect as the initiation of exercise post-heart transplant should be gradual and individualized based on the client's condition.

Correct Answer: C

Rationale: The client presents with bradycardia, diaphoresis, and chest pain, indicating reduced cardiac output. Atropine is the appropriate choice as it increases heart rate by blocking the parasympathetic nervous system. Lidocaine is used for ventricular arrhythmias, Adenosine for supraventricular tachycardia, and Verapamil for controlling heart rate in atrial fibrillation or atrial flutter. These medications are not suitable for the client's current presentation.

Correct Answer: B

Rationale: Tuberculosis is spread through small droplets, measuring less than 5 microns, which can remain airborne for extended periods. The nurse should place a client with TB under airborne precautions to prevent the transmission of the disease. Choice A, contact precautions, are used for diseases that spread by direct or indirect contact. Choice C, droplet precautions, are for diseases transmitted by large droplets. Choice D, protective environment, is used for clients who have compromised immune systems.