Correct Answer: C

Rationale: The correct answer is C: Risk for falls. Patients with vertigo experience a false sensation of spinning or movement, which can lead to imbalance and increased risk of falls. Prioritizing the risk for falls is crucial to prevent injuries and ensure patient safety. Other choices are incorrect as they do not directly address the immediate safety concern of falls associated with vertigo. A: Risk for disturbed sensory perception may be present, but the priority is preventing falls. B: Risk for unilateral neglect is not typically associated with vertigo. D: Risk for ineffective health maintenance is important but falls take precedence due to the immediate risk of injury.

Correct Answer: A

Rationale: The correct answer is A because an ultrasound-guided core biopsy is indeed faster, less expensive, and does not use radiation. - "Faster": Ultrasound-guided biopsies are typically quicker compared to stereotactic biopsies, as they are performed in real-time using ultrasound imaging. - "Less expensive": Ultrasound-guided biopsies are generally more cost-effective than stereotactic biopsies due to the equipment and resources required. - "Does not use radiation": Unlike stereotactic biopsies which involve the use of X-rays for guidance, ultrasound-guided biopsies do not expose the patient to radiation, making them safer in that aspect. The other choices are incorrect because they either inaccurately state that ultrasound-guided biopsies use radiation (C), take more time (D), or imply a slight increase in cost without highlighting the key advantages of speed and lack of radiation (B).

Correct Answer: C

Rationale: The correct answer is C: The patient's vomiting is unrelated to food intake. In the context of a brain tumor, vomiting that is not related to food intake can indicate increased intracranial pressure affecting the brain's vomiting center. This is known as projectile vomiting. A: Vomiting accompanied by epistaxis (nosebleeds) is more indicative of other conditions like hypertension or nasal issues, not necessarily specific to a brain tumor. B: Vomiting not relieving nausea can be seen in various conditions affecting the gastrointestinal system, not specifically brain tumors. D: Blood-tinged emesis can suggest gastrointestinal bleeding or other issues, but it's not a specific characteristic of vomiting associated with brain tumors.

Correct Answer: D

Rationale: The correct answer is D: Perform gentle massage to stimulate neutrophil migration. Gentle massage helps to promote drainage of the infected area by stimulating neutrophil migration, which aids in fighting the infection. This can help alleviate the pain and discomfort associated with acute mastitis. Cold compresses (choice A) may provide some relief, but they do not address the underlying issue of promoting neutrophil migration. Avoiding washing the breasts (choice C) is not recommended as maintaining good hygiene is important in preventing further infections. Avoiding wearing a bra (choice B) may not directly address the infection and may not be practical for the patient's daily activities.

Correct Answer: D

Rationale: The correct answer is D: Surgical intervention. Cataracts are a clouding of the lens in the eye, which can lead to vision impairment. Surgery is the most common and effective treatment for cataracts, involving the removal of the cloudy lens and replacement with an artificial one. Antioxidant supplements (Choice A) may help prevent cataracts but are not a treatment for existing ones. Eyeglasses or magnifying lenses (Choice B) can help with vision correction but do not address the cataracts themselves. Corticosteroid eye drops (Choice C) are used for treating inflammation in the eye, not cataracts. Therefore, surgical intervention is the most appropriate treatment option for age-related cataracts.