Correct Answer: C

Rationale: Certain foods like broccoli, oranges, dark greens, and dark yellow vegetables can help improve defense mechanisms by enhancing the immune system and overall health. While these foods can boost defense mechanisms, they are not a cure for diseases, do not balance body functions, and are not intended to solely supplement vitamin intake, which may be necessary in some cases. Therefore, the correct answer is defense mechanisms as these foods strengthen the body's ability to fight off illnesses and maintain health.

Correct Answer: A

Rationale: Palliative care includes measures to prevent skin breakdown, pain management, and management of other symptoms that cause discomfort, as well as encouraging contact with family and friends. A DNR request precludes all resuscitative efforts related to respiratory or cardiac arrest, making choice B incorrect. Dehydration is a natural part of the dying process, so providing intravenous fluids as in choice C would not align with the client's wish for comfort care. Total parenteral nutrition (TPN) as in choice D is an invasive procedure meant to prolong life and is not part of palliative care, which focuses on improving quality of life rather than extending it.

Correct Answer: D

Rationale: The correct answer is yogurt. Yogurt can help reduce gas formation in clients with a colostomy. High-fiber foods like bran can stimulate peristalsis and increase flatulence, which is not helpful in this situation. Cruciferous vegetables, such as cabbage, broccoli, and kale, and beans tend to increase gas formation. Carbonated beverages, along with smoking, chewing gum, and drinking fluids with a straw, can also increase gas formation. Therefore, the nurse should recommend yogurt to help alleviate the client's issues with flatus.

Correct Answer: A

Rationale: The correct answer is Kegel. Kegel exercises are specifically designed to strengthen the pelvic floor muscles, making them an effective treatment for urinary incontinence. These exercises involve contracting and relaxing the pelvic floor muscles, which helps to improve muscle tone and control. Choice B, resistance exercises, may not directly target the pelvic floor muscles as effectively as Kegel exercises. Passive exercises (Choice C) do not actively engage the muscles and are unlikely to strengthen the pelvic floor. Stretching exercises (Choice D) focus on increasing flexibility rather than muscle strength, so they are not the most appropriate for strengthening the pelvic floor muscles in the context of urinary incontinence.

Correct Answer: D

Rationale: With a breech presentation, the nurse must be particularly alert for a prolapsed umbilical cord. Prolapsed umbilical cord is a critical emergency situation where the umbilical cord descends into the vagina before the fetal presenting part, leading to compression between the presenting part and the maternal pelvis. This compression can compromise or completely cut off fetoplacental perfusion, endangering the fetus. Immediate delivery should be attempted to save the fetus. Quickening refers to fetal movements felt by the mother, ophthalmia neonatorum is an eye infection in newborns, and pica is a condition characterized by cravings for non-nutritive substances, none of which are directly related to the risks associated with a breech presentation and prolapsed umbilical cord.