MEDizzy
MEDizzy
Hunain
Hunainalmost 2 years ago
Activated prothrombin time

Activated prothrombin time

A typical value for a PTT is 60 to 70 seconds. There's also an activated PTT (aPTT) test that measures the same thing, but they add a substance to your blood to make it clot faster. A typical aPTT value is 30 to 40 seconds.

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