Multi drug resistant tuberculosis is resistance to?: (A) INH & Pyrizinamide, (B) INH & Rifampicin, (C) Rifampicin & Pyrizinamide, (D) Resistance to all
Answer is B. ANSWER: (B) INH & RifampicinREF: Davidson's 21st edition Chapter no 19 page no 695Repeat Medicine 2013 Session 1MDR TB is defined as resistance to at least rifampicin & isoniazid with or without other drug resistance.Extensively drug resistant TB is defined by resistance to at least rifampicin & isoniazid in addition to any quinolone & at least one injectable second line agent