The nurse is caring for a patient with tuberculosis. The patient's wife has a positive reaction to purified protein derivative (PPD) skin testing but doesn't have active tuberculosis. What treatment would the nurse expect to administer?
A) Bacille Calmette-Guérin vaccine
B) Isoniazid (INH) for six months
C) Yearly skin testing until negative
D) A combination of at least three drugs for 18 months
Ans: B
Feedback: Prophylactic therapy with isoniazid, administered once each day for 6 months, is recommended to prevent active disease. Bacille Calmette-Guérin vaccine is rarely used in the United States, where the incidence of tuberculosis is low; however, it may be given to patients with negative skin tests who have had intimate or prolonged exposure to people with tuberculosis. Because this patient already has a positive skin test, Bacille Calmette-Guérin wouldn't be administered. Yearly testing isn't useful; when a patient develops a positive reaction to a skin test, it remains positive for life. This patient doesn't require a combination of at least three drugs given over 18 to 24 months; such treatment is recommended for patients with active tuberculosis.
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