Related Experiment Video
Updated: Jul 16, 2026

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis
Published on: August 11, 2008
A long delay from the first symptom to definite diagnosis of pulmonary tuberculosis
Seyed-Mahdi Mirsaeidi1, Payam Tabarsi, Kiarash Mohajer
1Department of Pediatrics, Research Institute, Kosair Children's Hospital, University of Louisville, Louisville, USA. m0mirs01@louisville.edu
Background:
Despite the recent advances in medicine, still many people suffer from long-standing tuberculosis. Delay in the diagnosis may result in further mortality and morbidity. Because of the importance of delay in the diagnosis, we decided to study and evaluate the patient delay and physician delay.
Methods:
A descriptive analytical study was done on 97 patients referred to the National Research Institute of Tuberculosis and Lung Disease in Tehran from September 2002 through March 2003. Those individuals who fulfilled the inclusion criteria underwent a face to face interview. The questionnaires were filled out. The interval between the first appearance of the clinical manifestation and the first visit to the physician was calculated (patient delay). Also, the period between the patient's first visit to the physician and the final diagnosis was worked out.
Results:
The mean patient delay time was 15 +/- 13 days with a median of 13 days. The mean physician delay time was 93 +/- 72 days with a median of 75 days. The mean total delay time was 108 +/- 71 days with a median of 96 days.
Conclusion:
The patient delay in our country is at an acceptable level compared with other countries, but our physician delay time has not been shortened during the last eight years. Improving and upgrading the mycobacteriological courses for general physicians and specialists during their academic years should be accompanied by short-term teaching courses after the graduation.
Related Concept Videos
Pulmonary Tuberculosis IV
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis V
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...
Tuberculosis
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...