True about Tuberculosis HIV patients -
Sputum is negative in half of the patients because of absence of pulmonary cavities There are 4 main differences in clinical presentation in TB in HIV patients 1.TB progresses more rapidly 2.chest x ray appearance alters 3.sputum smears may be negative 4.classic miliary pattern may be seen Ref Harrison 20th edition pg 887
Sputum positivity
INH prophyaxis prevent development ofT.B
Lack characteristics feature of T.B
Highly positive PPD reaction
Infection