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You are here: Home / Health / Stethoscopes should be sterilized after every use

Stethoscopes should be sterilized after every use

February 28, 2014 Posted by Contributor

The researchers from the University of Geneva has highlighted the hazardous effects of the used stethoscopes, saying they should be disinfected after each use as they pick up bacteria after coming in contact with the patient’s skin.

The researchers assessed the level of bacterial contamination on stethoscopes as well as physicians’ hands following a single physical examination.

While analyzing the hands of doctors and the stethoscopes, the researchers found that the stethoscopes had as many bacteria on them as the palms of doctors’ hands. Infact, the doctors’ fingertips had more bacteria.

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The researchers suggested that cleaning of stethoscopes after each use would cut down on transmission of bacteria to a greater extent.

The researchers included 71 patients for the study and they were examined by physicians using sterile gloves and a sterile stethoscope. Following the physical examination, the researchers closely checked two parts of the stethoscope (the tube and diaphragm) and four regions of the physician’s hands (back, fingertips, and thenar and hypothenar eminences) to measure the total number of bacteria present.

What the researchers found was that the stethoscope’s diaphragm was more contaminated than all regions of the physician’s hand except the fingertips. The tube of the stethoscope was more heavily contaminated than the back of the physician’s hand.

“By considering that stethoscopes are used repeatedly over the course of a day, come directly into contact with patients’ skin, and may harbour several thousands of bacteria (including MRSA) collected during a previous physical examination, we consider them as potentially significant vectors of transmission. From infection control and patient safety perspectives, the stethoscope should be regarded as an extension of the physician’s hands and be disinfected after every patient contact”, said Dr Didier Pittet, Director of the Infection Control Program and WHO Collaborating Centre on Patient Safety, University of Geneva Hospitals.

The findings of the study are published in the March issue of Mayo Clinic Proceedings.

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Filed Under: Health Tagged With: Stethoscopes, stethoscopes disinfection

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