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Visiting bags: a labile thermal environment

S V Rudland1, A G Jacobs

  • 1Barton Surgery, Dawlish, Devon.

BMJ (Clinical Research Ed.)
|April 9, 1994
PubMed
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General practitioners should use silver visiting bags stored in car boots to reduce extreme internal temperatures. Even in the coolest car locations, temperatures can reach up to 80 degrees C.

Area of Science:

  • General Practice
  • Environmental Medicine
  • Medical Equipment Safety

Background:

  • Visiting bags used by general practitioners (GPs) are often stored in vehicles.
  • Internal temperatures of medical bags can be affected by storage location and bag color.
  • High temperatures may compromise the integrity of medical supplies within the bags.

Purpose of the Study:

  • To determine the typical color and storage locations of visiting bags in GPs' cars.
  • To investigate how bag color and storage site influence the internal temperature of these bags.

Main Methods:

  • A questionnaire was distributed to 200 general practitioners (GPs) in South Devon.
  • Serial temperature measurements were taken from paired black visiting bags stored in different car locations.

Related Experiment Videos

  • The effect of bag color on internal temperature was assessed.
  • Main Results:

    • 77% of responding GPs used black visiting bags, with 76% storing them in their cars all day.
    • The coolest storage site was the car boot, but maximum internal temperatures consistently exceeded 25°C, reaching up to 80°C.
    • Repainting black bags silver significantly reduced internal temperatures by an average of 8.37°C (P < 0.001).

    Conclusions:

    • GPs should opt for silver-colored visiting bags to mitigate high internal temperatures.
    • Storing bags in the car boot is preferable when the vehicle is in use.
    • Medical bags should be removed from the car to a cooler environment when not in transit or use.