What Does mmHg Stand For?
Posted on November 10, 2009
Filed Under compression measurement | Leave a Comment
mmHg is an international standard unit of measurement used to classify the amount of pressure or level that is provided by compression hosiery (e.g. compression socks, compression stockings, and TED hose). It is a medical/physiological acronym that stands for millimeters of mercury. It is not a measurement that is used for non-compression foot garments such as diabetic socks.
Broken down, ‘mm’ stands for millimeters of mercury (unit of pressure) and ‘Hg’ is the chemical symbol for mercury. The higher the number, which can range anywhere from 14 – 45, the stronger the compression will be. All compression strengths are measured starting at the ankle and up the leg, generally speaking, are + – 5% accurate.
Below is a breakdown of the compressions and what problems they may be suitable for. (Please note: these measurements, with regard to what they help to prevent or treat, will vary from manufacturer to manufacturer).
1. Extra Light Support
All products with a compression value of 14 mmHg at the ankle or less. Very Light is the level for all our products that have a very low classification and may be used as either preventing more complex medical issues or to provide a simple day to day support for traveling to to avoid swollen and tired legs.
2. Light Support
Products within this category may be of used in Preventing and or treating the following:
- Early or Developing Varicose vein
- Tired/ heavy aching legs
3. Moderate support
Products within this category may be of use in Preventing and or treating the following:
- Medium to Gross(Severe) varicose vein
- Spider veins
- Minor Leg ulcers
- DVT in early stages
- Early Lymphoedema
4. Firm Support
Products within this category may be of use in preventing and or treating the following:
- Severe Varicose Vein
- DVT in advanced stages
- Moderate to severe Lymphoedema
5. Extra Firm Support
Products within this category are to be used with great care as the compression level is very high. However under proper medical supervision the products may be used in Preventing and or treating the following:
- Severe Varicose Vein
- DVT in advanced stages
- Severe Lymphoedema
- Elephantitis
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