Related Experiment Video
Updated: Mar 29, 2026

Bronchoalveolar Lavage BAL for Research; Obtaining Adequate Sample Yield
Published on: March 24, 2014
Gastric Aspirate Yield For Children With Suspected Pulmonary Tuberculosis
Andrea T Cruz1, Paula A Revell2, Jeffrey R Starke3
1Section of Infectious Diseases, and Section of Emergency Medicine, Department of Pediatrics.
Abstract:
The optimal number of gastric aspirates to diagnose tuberculosis is unclear. Thirty-two of 280 (11%) children in whom gastric aspirates were obtained grew Mycobacterium tuberculosis. First, second, and third specimens yielded initial culture positivity in 24 of 32, 6 of 32, and 2 of 24 cases, respectively. Intermittent positivity and paucibacillary disease necessitate obtaining multiple specimens.
More Related Videos
05:50Author Spotlight: Point-of-Care Ultrasound for Gastric Content Assessment and Risk Stratification in Perioperative Care
Published on: September 22, 2023
08:22The Application of Point-of-Care Ultrasonography (POCUS) in the Management of Acute Respiratory Distress Syndrome (ARDS) in the Intensive Care Unit
Published on: December 12, 2025
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...
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...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Sputum Studies II: Culture and Sensitivity
Sputum culture and sensitivity is a medical procedure used to diagnose bacterial infections in the respiratory tract and select the most appropriate antibiotics for treatment. This process involves analyzing sputum samples of thick and opaque secretions produced in the lungs and airways. These samples are collected from patients and then sent to the laboratory for analysis.
The test can identify various pathogens responsible for respiratory infections, including Streptococcus,...