A Patient Who Has Active TB Has Just Been Started

A patient who has active TB has just been started on drug therapy for TB. The nurse informs the patient that the disease can be transmitted to others until

A) the chest x-ray shows resolution of the tuberculosis.
B) three sputum smears for acid-fast bacilli are negative.
C) TB medications have been taken for 6 months.
D) sputum cultures on 3 consecutive days are negative.

Correct Answer:

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