text: what precautions required for family members of a t b patient?   previously chemoprophylaxis with inh, isolation of patient were done. nowdays we don't isolate the patient and it is not necessary to take chemoprophylaxis also if your one member has got tb.  the best way is to treat the patient with short term chemoprypholaxis. if we give even single dose of rifampicin the communicability of tb will reduce drastically upto 60%.   so have a standard treatment is enough.  another thing we can't avoid acquisition of tb, most of us are infectd with tb, and shows diseases in certain conditions like low  immunity, aids and other condition when body fight system is poor.  keep you member in your home, give him/her atandard antitb drugs, say him to use towel during coughing or sneezing, proper disposal of sputum and give him fresh air, good nutrition.  however if the member is your intimate like partner and you can't avoid and he/she is in active stage then only you can take inh chemoprophylaxis, however is is is taken, it should be taken for long duration.