Correct Answer: D

Rationale: Vomiting is not a common symptom of Vitamin B12 deficiency.

Correct Answer: C

Rationale: Anticholinergics are used to treat urge incontinence by blocking acetylcholine.

Correct Answer: D

Rationale: Folic acid and iron are essential, particularly for women of childbearing age.

Correct Answer: C

Rationale: Medicare Part B requires the patient to pay 20% of hospital and physician fees.

Correct Answer: B

Rationale: The nasal speculum allows for visualization of the lower and middle turbinates and the nasal septum.