Correct Answer: D

Rationale: The correct answer is D because the patient's symptoms of pounding headache, visual changes, and epigastric pain are classic signs of worsening preeclampsia, indicating a significant increase in blood pressure and potential progression to eclampsia (seizures). Immediate medical intervention is crucial to prevent complications. A: Gastrointestinal upset does not explain the combination of symptoms presented. B: Magnesium sulfate is used to prevent seizures in preeclampsia but does not cause these specific symptoms. C: Anxiety does not typically present with the specific physical symptoms mentioned.

Correct Answer: B

Rationale: The correct answer is B: Keep the lesions clean and dry. This intervention helps prevent infection and promotes healing. Cleaning the lesions reduces the risk of secondary infections and discomfort. Keeping the area dry can also help alleviate pain and discomfort associated with moisture. Covering with a topical antibiotic (A) may not address pain directly and could potentially irritate the lesions. Applying a topical NSAID (C) may provide some pain relief but does not address the primary need to keep the lesions clean and dry. Remaining on bed rest (D) is not necessary for managing acute pain related to genital lesions.

Correct Answer: D

Rationale: The correct answer is D: Mobility. A malignant breast tumor typically lacks mobility due to its fixed attachment to surrounding tissues. This characteristic is concerning for malignancy as it suggests invasive growth. Incorrect answers: A: Nontenderness - Tenderness does not reliably indicate malignancy or benignancy. B: A size of 5 mm - Tumor size alone does not determine malignancy. C: Softness and a regular shape - Malignant tumors are often firm and irregular in shape.

Correct Answer: C

Rationale: The correct answer is C (900 mL) because the weight of 900 g corresponds to a blood loss of the same amount in milliliters. Blood density is close to that of water, so 1 g ≈ 1 mL. Therefore, a blood-soaked peripad weighing 900 g indicates a blood loss of 900 mL. Choice A (1800 mL) is incorrect as it doubles the weight instead of converting it to milliliters. Choice B (450 mL) is incorrect as it halves the weight. Choice D (90 mL) is incorrect as it divides the weight by 10, which is too small for the blood loss indicated.

Correct Answer: C

Rationale: The correct answer is C. Cholesteatomas are often the result of chronic otitis media. Chronic otitis media can lead to the formation of cholesteatomas, which are noncancerous but can cause complications if left untreated. Cholesteatomas do not resolve spontaneously (A), are not the result of metastasis (B), do not typically cause intractable neuropathic pain (D), and usually require surgical removal to prevent complications (E). Therefore, educating the patient about the association between chronic otitis media and cholesteatoma is essential for understanding the diagnosis and potential treatment options.