Unit of measure
MMHG medical abbreviation
MMHG means "millimeters of mercury".
Each meaning matched at least two public references (2 in all for MMHG), checked October 23, 2026. The table lists them.
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What MMHG means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| millimeters of mercury | None | Prescriptions, Charting |
Also written: mmHg.
Example
Sample flowsheet unit: "mmHg."
A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.
Related abbreviations
Elsewhere on Rivvi
Questions
What does MMHG mean in medical terms?
MMHG means "millimeters of mercury".
Where is MMHG used?
MMHG shows up in prescriptions and charting. Its category here is unit of measure.
Is MMHG on the Joint Commission Do Not Use list?
No. MMHG is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.