Correct Answer: B

Rationale: The correct answer is B, a lactating woman nursing her 3-day-old infant. During lactation, women have increased nutritional needs, including protein, to support milk production for their infants. Protein is essential for proper growth and development. While choice A, a college-age track runner with a sprained ankle, may require protein for tissue repair, the lactating woman's need is greater due to the demands of breastfeeding. Choice C, a school-aged child with Type 2 diabetes, may have specific dietary considerations related to diabetes management but does not necessarily require additional protein intake compared to a lactating woman. Choice D, an elderly man being treated for a peptic ulcer, may need protein for wound healing, but the nutritional need for a lactating woman is higher to support her infant's growth.

Correct Answer: A

Rationale: The correct answer is A: Fidelity. Fidelity in nursing ethics involves keeping promises and being faithful to commitments, demonstrating reliability and trustworthiness. In this scenario, the nurse is exemplifying fidelity by returning promptly to the client as promised. Choice B, Autonomy, refers to respecting a patient's right to make their own decisions, not relevant in this situation. Choice C, Beneficence, involves the duty to act in the best interest of the patient, which is not the primary focus here. Choice D, Justice, pertains to fairness and equity in the distribution of healthcare resources, not applicable to the nurse's actions in this case.

Correct Answer: B

Rationale: The correct technique for surgical handwashing involves scrubbing with hands held higher than the elbows. This positioning helps prevent water from the contaminated area (the hands) from flowing towards the cleaner area (the elbows). This directional flow minimizes the risk of contaminating the scrubbed hands during the handwashing process. Choices A, C, and D are incorrect: A - having hands lower than elbows would risk contamination of the clean area, C - using a fist position does not ensure proper coverage and thorough handwashing, and D - placing hands on the chest is not part of the proper surgical handwashing technique.

Correct Answer: A

Rationale: The correct answer is A: Formula or breast milk. In infants with gastroenteritis and mild dehydration, it is essential to continue feeding them with formula or breast milk along with oral rehydration fluids to provide adequate nutrition and maintain hydration. Option B, broth and tea, may not provide the necessary nutrients and electrolytes needed for the infant's recovery. Option C, rice cereal and apple juice, can be harsh on the digestive system and may exacerbate diarrhea. Option D, gelatin and ginger ale, do not provide the necessary nutrients and can worsen the condition due to the high sugar content in ginger ale.

Correct Answer: D

Rationale: The nurse should prioritize assessing left lower extremity tenderness as it could indicate deep vein thrombosis, a serious condition that requires immediate attention. Musculoskeletal weakness, loss of appetite, and increased heart rate during physical activity are important but not as critical as a potential thrombotic event that could lead to life-threatening complications. Deep vein thrombosis is a common risk for individuals on prolonged bed rest due to reduced mobility and blood stasis.