Correct Answer: B

Rationale: Urinary frequency is least indicative of UTI during pregnancy. It is a common minor discomfort of pregnancy caused by pressure of the growing uterus on the bladder. As the uterus rises in the second trimester, there are usually no problems. Frequency may return in the third trimester when the uterus drops into the pelvic cavity. UTI symptoms include low back pain, suprapubic discomfort, and malaise, and are confirmed by laboratory findings. Low back pain, GI distress, and malaise are more closely associated with UTI during pregnancy compared to urinary frequency.

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: C

Rationale: The most appropriate course of action for the nurse is to observe the hairline and scalp for possible signs of lice. The student's behavior of excessively rubbing her scalp raises concerns about a potential infestation, making it necessary to look for signs firsthand. Contacting the parents or the physician should be considered after observing for signs of lice to provide more information and take appropriate action. Requesting a private evaluation from the parents may not be required initially, as lice infestation is a common concern among children and observing for signs is the immediate step to address the situation.

Correct Answer: C

Rationale: The correct answer is sodium and chloride. These two electrolytes are the major components of extracellular fluid. Potassium and phosphate (Choice B) are not the major electrolytes in the extracellular fluid. Potassium is primarily an intracellular ion, and phosphate is more abundant in the intracellular fluid and bones. Sodium and phosphate (Choice D) are also not the major electrolytes in the extracellular fluid. Chloride plays a crucial role in maintaining electrolyte balance and is predominantly found in extracellular fluid alongside sodium.

Correct Answer: C

Rationale: The correct answer is C: lower right. Abdominal tenderness in the lower-right quadrant is a classic sign of appendicitis. The appendix is located in the lower right abdomen, so inflammation of the appendix typically causes tenderness in this specific area. Choices A, B, and D are incorrect because tenderness in the upper right, upper left, and lower left quadrants, respectively, is not typical in appendicitis cases. Therefore, the nurse should focus on assessing the lower right quadrant for tenderness when suspecting appendicitis.