Correct Answer: D

Rationale: Assisting with oral hygiene is the essential initial step before collecting a sputum specimen for acid-fast bacillus (AFB) to prevent contamination of the sample. Ensuring the client's mouth is clean reduces the risk of introducing unwanted bacteria into the specimen. Asking the client to cough sputum into a container, having the client take deep breaths, and providing a specimen container are important steps in the specimen collection process, but they should follow ensuring proper oral hygiene.

Correct Answer: C

Rationale: The most crucial information to prevent the spread of lice in schools is to avoid sharing hats, scarves, and combs. This is important as lice can easily spread through shared personal items. Choices A, B, and D are not as critical as choice C in preventing the spread of lice. Reapplication of treatment, boiling or steaming bedding and clothing, and using nit combs are important but not as crucial as avoiding the sharing of personal items.

Correct Answer: C

Rationale: Black, tarry stools can indicate gastrointestinal bleeding, which is a serious complication of peptic ulcer disease. This finding suggests active bleeding in the gastrointestinal tract, requiring immediate attention. A normal heart rate of 72 beats per minute (choice A) is within the expected range. A hemoglobin level of 12 g/dL (choice B) is also within normal limits. Nausea and vomiting (choice D) are common symptoms associated with peptic ulcer disease but may not necessarily indicate active bleeding like black, tarry stools.

Correct Answer: D

Rationale: The correct sequence for initiating enteral feeding includes verifying tube placement to ensure safety, checking the residual feeding contents to prevent complications, and then administering the feeding. Limiting protein intake is not a step in the sequence for initiating enteral feeding. Protein intake may be adjusted based on the patient's specific nutritional needs, but it is not a part of the immediate sequence for initiating the feeding. Therefore, option D is the correct answer. Options A, B, and C are essential steps to ensure the safe and effective administration of enteral feeding.

Correct Answer: D

Rationale: In a client with altered renal function, monitoring fluid balance is crucial. Weekly weight is the most accurate indicator of fluid balance during the visits as it reflects cumulative changes in the body's fluid status. Changes in intake and output (Choice A) can provide valuable information, but weekly weight is a more direct measure of overall fluid retention or loss. Changes in mucous membranes (Choice B) and skin turgor (Choice C) can be influenced by factors other than fluid balance, making them less reliable indicators in this context.