Correct Answer: D

Rationale: Complaints of back pain and shortness of breath are classic signs of a transfusion reaction, specifically indicating a hemolytic reaction. This reaction can lead to the release of hemoglobin into the bloodstream, causing back pain and shortness of breath due to clot formation in the blood vessels, leading to decreased oxygen delivery. Warmth, flushing, rash, chills, and fever are more commonly associated with allergic reactions or febrile non-hemolytic reactions during transfusions. Therefore, options A, B, and C are incorrect in this context.

Correct Answer: A

Rationale: The correct next step for the nurse is to assess the client for confusion and reteach the procedure. This is crucial to ensure that the older adult male understands the process correctly, reducing the likelihood of errors in collecting the 24-hour urine specimen for creatinine clearance. Checking the urine for color and texture (Choice B) is not the immediate next step as the focus should be on patient understanding first. Emptying the urinal contents into the 24-hour collection container (Choice C) assumes prior knowledge on the client's part and skips the critical step of ensuring comprehension. Discarding the contents of the urinal (Choice D) is incorrect and wasteful since the urine is necessary for the 24-hour collection process.

Correct Answer: A

Rationale: The correct answer is A: 'Folic acid should be taken before and after conception.' Folic acid supplementation before and during early pregnancy has been shown to significantly reduce the risk of neural tube defects. Choice B is incorrect because while multivitamin supplements are beneficial during pregnancy, the specific focus for preventing neural tube defects is on folic acid. Choice C is a general statement about a well-balanced diet and does not specifically address neural tube defects. Choice D is incorrect as it focuses on dietary iron, which is important for overall health but not specifically proven to prevent neural tube defects.

Correct Answer: A

Rationale: Collapsing the device when it is 1/2 to 2/3 full of air is the correct nursing action to ensure proper operation of a closed wound suction device (hemovac). This action maintains negative pressure, which is essential for proper suction and drainage of the wound. Emptying the device every 4 hours (Choice B) is not necessary as the focus should be on collapsing it appropriately. Replacing the device every 24 hours (Choice C) is not a standard practice unless indicated by the healthcare provider. Keeping the device above the level of the surgical site (Choice D) is not necessary for the device's proper operation; collapsing it to maintain negative pressure is the key action.

Correct Answer: D

Rationale: The correct answer is D because maturational loss is related to developmental changes, such as children leaving for college. This type of loss is tied to the normal life transitions of individuals and can lead to feelings of grief and adjustment. Choices A, B, and C represent different types of losses. Choice A involves a traumatic loss of a child due to illness, choice B involves a financial loss impacting the head of household's job, and choice C involves a material loss due to a fire incident. While these losses are significant, they do not specifically relate to maturational loss, which is associated with expected life stage transitions.