Lab
APTT medical abbreviation
APTT means "activated partial thromboplastin time".
Each meaning matched at least two public references (2 in all for APTT), checked October 23, 2026. The table lists them.
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What APTT means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| activated partial thromboplastin time | None | Lab orders, Charting |
Also written: aPTT.
Example
Sample lab order: "aPTT."
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 APTT mean in medical terms?
APTT means "activated partial thromboplastin time".
Where is APTT used?
APTT shows up in lab orders and charting. Its category here is lab.
Is APTT on the Joint Commission Do Not Use list?
No. APTT is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.