Partial Thromboplastin Time: Risks
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Risks
There is very little chance of a problem from having blood sample taken from a vein.
- You may get a small bruise at the site. You can lower the chance of bruising by keeping pressure on the site for several minutes.
- In rare cases, the vein may become swollen after the blood sample is taken. This problem is called phlebitis. A warm compress can be used several times a day to treat this.
- Ongoing bleeding can be a problem for people with bleeding disorders. Aspirin, warfarin (Coumadin), and other blood-thinning medicines can make bleeding more likely. If you have bleeding or clotting problems, or if you take blood-thinning medicine, tell your doctor before your blood sample is taken.
| Last updated: | September 15, 2008 |
|---|---|
| Author: | Robin Parks, MS |
| Reviewed By: | Anne C. Poinier, MD - Internal Medicine, Brian Leber, MDCM, FRCPC - Hematology |
| Editors: | Maria Essig, Tracy Landauer |
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