Correct Answer: A

Rationale: To ensure accurate testing, a minimum amount of stool is required for specimen collection, typically at least 2 inches of formed stool. This amount provides an adequate sample for testing. Wearing sterile gloves is important for infection control but is not specifically required for stool specimen collection. Using a culturette is not typically necessary for collecting stool specimens. Recording the date and time the stool was collected is essential to ensure timely processing but does not directly impact the collection of the specimen itself.

Correct Answer: A

Rationale: Using tracheostomy covers when outdoors is essential to protect the tracheostomy from dust and debris, reducing the risk of infection. Tracheostomy covers help maintain cleanliness and prevent foreign particles from entering the stoma. Choice B is incorrect because cleaning the tracheostomy with alcohol can be too harsh and drying for the skin surrounding the stoma, leading to skin irritation. Choice C is incorrect as tracheostomy tubes are typically replaced only when clinically indicated or as per the healthcare provider's instructions, not routinely every week, to prevent unnecessary risks and complications. Choice D is incorrect as covering the tracheostomy with a wet cloth when sleeping can create a moist environment ideal for bacterial growth, increasing the risk of infection and skin breakdown. It is important to keep the tracheostomy site clean, dry, and protected to maintain optimal hygiene and prevent complications.

Correct Answer: C

Rationale: The correct answer is to recommend the client to use progressive relaxation techniques at bedtime. Progressive relaxation techniques help reduce stress and muscle tension, which can promote better sleep. Choice A, drinking a cup of hot cocoa before bedtime, contains caffeine which can interfere with falling asleep. Choice B, exercising 1 hour before going to bed, can stimulate the body and mind, making it harder to fall asleep. Choice D, reflecting on the day's activities before going to bed, may lead to increased mental activity and prevent relaxation, making it difficult to fall asleep.

Correct Answer: A

Rationale: Erythema (redness) along the path of the vein is a classic sign of phlebitis, indicating inflammation of the vein. This occurs due to irritation or infection at the IV site. Pitting edema (choice B) is not typically associated with phlebitis but suggests fluid overload or poor circulation. Coolness (choice C) and pallor (choice D) of the forearm are not characteristic signs of phlebitis but may indicate impaired circulation or reduced blood flow to the area.

Correct Answer: B

Rationale: The correct answer is B. Petroleum jelly is flammable and should not be used with oxygen therapy as it can increase the risk of fire. Using petroleum jelly near oxygen can lead to a fire hazard. Choices A, C, and D are correct statements that indicate proper understanding of oxygen therapy safety measures. Choice A emphasizes the importance of keeping the oxygen tank upright to prevent leaks, choice C highlights the necessity of avoiding smoking to prevent exacerbation of COPD, and choice D encourages seeking medical help promptly in case of breathing difficulties.