Lab
PTT medical abbreviation
PTT means "partial thromboplastin time".
Each meaning matched at least two public references (3 in all for PTT), checked October 23, 2026. The table lists them.
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What PTT means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| partial thromboplastin time | None | Lab orders, Charting |
Example
Sample lab order: "PTT."
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 PTT mean in medical terms?
PTT means "partial thromboplastin time".
Where is PTT used?
PTT shows up in lab orders and charting. Its category here is lab.
Is PTT on the Joint Commission Do Not Use list?
No. PTT is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.