Sign in →

Test Code ACT/LAB312 Activated Clotting Time

Performing Laboratory

Asante Rogue Regional Medical Center

Specimen Requirements

1 mL whole blood

Collected by a Medical Technologist at bedside into special activated clotting cartridge

Specimen Transport Temperature and Stability

Performed on inpatients only at the Point of Care on designated nursing units following heparin or Angiomax interventional therapy.

Day(s) Test Set Up

Monday through Sunday

Routine - same day

ASAP - 2 hours after receipt of specimen in lab

STAT - 1 hour after receipt of specimen in lab

Additional Information

The Activated Clotting Time (ACT) measures fresh whole blood’s ability to clot when activated by surface contact.  It focuses on the intrinsic coagulation pathway and is helpful in monitoring heparin therapy.  This test is particularly utilized for patients undergoing cardiopulmonary bypass and stent procedures.


Clot Formation

Performing Department


Test Classification and CPT Coding

85347 -  Coagulation time; activated

Billing Code