Tb Laboratory Diagnosis, a Comparative Study in Baghdad, Iraq
DOI:
https://doi.org/10.37506/mlu.v20i4.1930Keywords:
TB, gene x pert, AFB, IGRA,TB IgM.Abstract
Background: Tuberculosis is an infectious contagious disease caused primarily by Mycobacterium
tuberculosis. The probability of developing TB disease is much higher among people with risk factors.
Iraq was classified the seventh country in Middle East Asia that related to the high burden of tuberculosis.
Many laboratory tests are used in diagnosis of TB. The study aimed to compare the results of AFB sputum
test,sputum culture, Gene-expert automated system PCR and IGRA test for interferon Gamma in TB patients.
Aims of the Study: This study aimed to compare between efficiency of TB diagnostic tests : AFB, IGRA,
IgG, IgM, Gen X pert PCR & Culture on LJ. medium used in TB. Patients attended private Clinics In
Bagdad, Karch Sector, IRAQ.
Patients and Method: In a Descriptive study, one hundred fifty four (154) suspected TB patients were
attending Lagash Private Clinic in Baghdad, Capital of IRAQ during the period from January 2017 to
December 2019. All patients were examined by well expert physician’s senior specialist, requested clinical,
chest x-ray and lab investigations AFB, IGRA, IgG, IgM, Gen X pert PCR & Culture on LJ medium were
done .
Results: Patients were showing different rates of positive tests regarding their age, all patients were showing
positive IGRA followed by IgM and PCR tests. While culture and AFB tests were showing the lowest rate
in the studied patients sample. Gender showed no effect on the tested parameters used for TB study. We
recommend depending IGRA, PCR for the rapid diagnosis of TB.
