U.S. doctors online nowAsk doctors free
A 21-year-old member asked:

What is multidrug-resistant tb and extensively drug-resistant tb?

2 doctor answers6 doctors weighed in
Dr. Carlo Hatem
Pulmonary Critical Care 26 years experience
See below: Multidrug resistant TB is resistant to at least inh and rifampicin. Extensively drug resistant is resistant to at least inh, rifampicin, and a quinolone and at least one of the following: kanamycin, capreomycin, or amikacin. In short, these are cases of TB where the bacterium is increasingly immune to the most important tools that we have to fight it.
Dr. Klaus d Lessnau
Pulmonary Critical Care 37 years experience
MDR XDR: This is very bad. Tb expert is crucial!
Dr. Joel Gallant
Infectious Disease 37 years experience
MDR-TB is TB that's resistant to the two most important drugs: isoniazid and rifampin. XDR-TB is TB that's resistant to those two drugs as well as a member of the quinolone family of antibiotics and at least one of the other second-line injectable drugs. MDR-TB can be treated; XDR-TB is very hard to treat and has a high fatality rate.
Sep 21, 2012

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership

Similar questions

A 21-year-old member asked:

What is drug-resistant tb?

3 doctor answers4 doctors weighed in
Dr. Carlo Hatem
Pulmonary Critical Care 26 years experience
Emerging threat: Tb is a bacteria that is killed by certain antibiotics. When the antibiotic is unable to kill the bacteria, because said bacteria found a way to defend against the antibiotic, then they have become resistant. This is a concern since we have a limited number of effective antibiotics, when we loose them, we cannot treat TB anymore.
A 29-year-old member asked:

How common is drug resistant tb?

1 doctor answer1 doctor weighed in
Dr. Yash Khanna
Family Medicine 58 years experience
DRUG RESISTANT TB: It is very common, thats why we have to use multiple antibiotics.

Related questions

A 46-year-old female asked:
1 doctor answer3 doctors weighed in
A 34-year-old member asked:
1 doctor answer1 doctor weighed in
A 38-year-old member asked:
1 doctor answer1 doctor weighed in
A 36-year-old member asked:
1 doctor answer3 doctors weighed in
A 41-year-old member asked:
1 doctor answer1 doctor weighed in
Last updated Jun 10, 2014
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.