Breath test in medicine for disease and ethanol.pptx

Breath test in medicine for disease and ethanol

1. Breath test in medicine

2. Breath alcohol testing There are three major types of breath alcohol testing devices, and they're based on different principles: Uses a chemical reaction involving alcohol that produces a color change Detects alcohol by infrared (IR) spectroscopy Detects a chemical reaction of alcohol in a fuel cell

3. Using a fuel cell in the presence of a catalyst, oxygen in a sample of expired air converts any alcohol present into acetic acid and then to water and carbon dioxide. A fuel cell converts the chemical energy released when oxidation occurs into a detectable electrical voltage. The higher the voltage, the more alcohol is present in the sample

4. Color reaction a suspect breathes into the device. The breath sample is bubbled in one vial through the mixture A system of photocells connected to a meter to measure the color change associated with the chemical reaction

5. Breath analysis may offer a relatively inexpensive, rapid, and non-invasive method for detecting a variety of diseases

6. The Heartsbreath TM test is a non-invasive breath test for breath biomarkers that predict the probability of grade 3 rejection in heart transplant recipients . It employs a breath collection apparatus (BCA) for collection of volatile organic compounds in breath onto a sorbent trap and analyzed via gas chromatography and mass spectroscopy. It is approved by FDA

7. Biomarkers for breast cancer Breath mass ion biomarkers of breast cancer . Phillips M, Cataneo RN, Lebauer C, Mundada M, Saunders C. Journal of Breath Research (19 Dec. 2016)