Hg

What Kind of Doctor Do I Need? Slideshow

Medical Definition of Hg

Hg: Symbol for the metallic element mercury.

The abbreviation "mm Hg" means millimeters of mercury, the height of a column of mercury, as in a blood pressure reading.

Mercury is poisonous to people. See Mercury poisoning.


Subscribe to MedicineNet's General Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 10/9/2012

Health Solutions From Our Sponsors