Related Experiment Video
Updated: Jun 25, 2026

Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
Published on: April 9, 2012
Universal tuberculosis screening in pregnancy
Nadav Schwartz1, Sarah A Wagner, Sean M Keeler
1Department of Obstetrics and Gynecology, NYU School of Medicine, New York, New York 10016, USA. nadavmd@hotmail.com
Abstract:
We reviewed our practice of universal tuberculosis (TB) screening in an at-risk pregnant population with regards to utility and patient compliance. The Gouverneur Healthcare Services prenatal database was analyzed for compliance with TB screening. Age, ethnicity, country of origin, and education level were also analyzed. Of 4049 patients, 95.0% were compliant with their purified protein derivative (PPD) testing. Universal screening identified 1935 (50.4%) PPD+ patients, with chest X-rays (CXR) available for 95.1%. Only one patient had a CXR consistent with active TB, although sputum testing was negative for acid-fast bacilli. Asian women were more likely to be PPD-compliant (adjusted odds ratio [aOR]: 4.94, 95% confidence interval [CI]: 2.34 to 10.45). Similarly, PPD+ Asian women were more likely to be compliant with CXR (aOR: 12.67, 95% CI: 3.44 to 46.7). U.S.-born women were significantly less likely to be compliant with PPD (aOR: 0.44, 95% CI: 0.30 to 0.64) or with CXR (aOR: 0.22, 95% CI: 0.08 to 0.61). Universal prenatal TB screening is associated with excellent compliance rates and is an effective way to identify a high prevalence of latent TB, but not active disease.
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 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...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
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...
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...
Tuberculosis