<prompt> Treatment of choice for sputum positive pulmonary tuberculosis detected in 1st trimester of pregnancy-Defer till second trimesterSta cat. I immediatelySta cat. II immediatelySta cat. III immediately  <response>: Park;s Textbook of Preventive and Social Medicine 23rd edition Page no: 196 Tuberculosis in pregnancy is usually treated with isoniazid, rifampicin and ethambutol for 2 months, followed by isoniazid and rifampicin for an additional 7 months. Ethambutol can be stopped after the first month if isoniazid and rifampicin susceptibility is confirmed. 