Correct Answer: C

Rationale: The correct answer is C: Weight loss. In PCOS, weight loss can help improve hormone balance and fertility by reducing insulin resistance and regulating hormone levels. Excess weight can exacerbate symptoms of PCOS. Kegel exercises (A) are beneficial for pelvic floor strength but do not directly address hormone imbalance. Increased fluid intake (B) is important for overall health but does not specifically target hormone imbalance. Topical antibiotics (D) are unrelated to PCOS treatment.

Correct Answer: D

Rationale: Correct Answer: D - Proper hand hygiene techniques Rationale: 1. Clostridium difficile is mainly spread through contact with contaminated surfaces. 2. Proper hand hygiene is the most effective way to prevent the spread of bacteria. 3. Hand hygiene removes bacteria from hands, reducing the risk of transmission. 4. Appropriate disposal (A) is important but doesn't directly prevent spread. Monthly in-services (B) and mandatory cultures (C) are not as effective as hand hygiene in preventing transmission.

Correct Answer: A

Rationale: The correct answer is A: Drink more water to prevent further dehydration. Given the patient's fair skin turgor, fatigue, weakness, warm and dry skin, elevated pulse rate, and slightly elevated urinary sodium level, these are signs of dehydration. Increasing water intake would help improve the patient's hydration status. Other choices are incorrect because B (calorie-dense fluids) does not address the dehydration issue, C (milk and dairy products) does not directly address the symptoms presented, and D (grapefruit juice) is not essential for hydration in this case.

Correct Answer: D

Rationale: The correct answer is D: Decreased nipple sensation. During breast reduction mammoplasty, nerves responsible for nipple sensation may be disrupted, leading to decreased sensation in the nipple area. This is an important consequence to consider as it can impact the patient's satisfaction and quality of life post-surgery. Other choices are incorrect because: A: Chronic breast pain is a potential risk of surgery but not a consequence directly related to nipple sensation. B: Unclear mammography results may occur due to breast tissue changes from surgery, but it is not a direct consequence of decreased nipple sensation. C: Increased risk of breast cancer is not a common consequence of breast reduction mammoplasty and is not directly related to nipple sensation.

Correct Answer: B

Rationale: The correct answer is B. Antihistamines are generally considered safe during pregnancy, but it is recommended to avoid unnecessary medications, especially in the third trimester. Antihistamines should be used cautiously in pregnant women due to potential effects on the fetus. Choice A is incorrect because previous treatment for tuberculosis does not contraindicate the use of antihistamines. Choice C is incorrect as estrogen-replacement therapy does not interact significantly with antihistamines. Choice D is incorrect as a severe allergy to eggs does not directly contraindicate the use of antihistamines.