The nurse suggests which herb that is used for discomforts associated with menopause, such as hot flashes?

Correct Answer: C

Rationale: Black cohosh (C) reduces menopausal hot flashes by lowering luteinizing hormone. Primrose (A) aids skin, echinacea (B) immunity, and milk thistle (D) liver. Document: 'Black cohosh diminishes hot flashes… [and] other menopausal discomforts.'

Correct Answer: B

Rationale: Droplet precautions for meningitis continue 24 hours (B) post-antibiotics to ensure contagion reduction. Shorter (A) or longer (C, D) are incorrect. Document: 'Until 24 hours after appropriate antimicrobial therapy.'

Correct Answer: C

Rationale: A 10-year-old with lobar pneumonia and a history of cefaclor reaction (rash, target lesions, arthralgia) and familial penicillin anaphylaxis requires a safe antibiotic. Clindamycin (Choice C) is appropriate for community-acquired pneumonia, covering Streptococcus pneumoniae and some atypicals, and avoids beta-lactam cross-reactivity risks from her cephalosporin reaction and penicillin family history. Ceftriaxone (Choice A) and penicillin (Choice D), as beta-lactams, risk allergic reactions. Ciprofloxacin (Choice B) is less preferred in children due to side effects and atypical coverage focus. Clindamycin is the safest, effective choice.

Correct Answer: D

Rationale: Physiologic dead space is the lung volume not participating in CO2 elimination, including anatomic dead space plus alveolar dead space from non-perfused alveoli. Anatomic dead space (Choice A) is part but incomplete. Expiratory reserve capacity (Choice B) is functional volume. FEV1 (Choice C) and FVC (Choice D) measure flow and capacity, not dead space. Physiologic dead space is the full answer.

Correct Answer: D

Rationale: The third hepatitis B dose is recommended at 6 months , per CDC, ensuring full immunity. Earlier doses (A-D) are part of the schedule but not the final one.