Prothrombin Time & Activated PTT
Blue top (sodium citrate) tube
Cause for rejection:
Specimen hemolyzed, clotted, diluted with IV fluid; contaminated with heparin; improperly filled; not kept on ice; received > 1 hr after drawn
Daily, 24 hours; STAT
Optical Light Scatter Detection Clotting Assay
Indicate clearly if a specimen has been drawn from an arterial line or from a line that has been rinsed with heparin. This information is absolutely essential to the laboratory personnel for proper handling of the specimen and the reporting of results. Please indicate if the patient is currently receiving anticoagulant therapy.
If collected at an offsite location, send by a STAT Courier to Akron Children's at Mahoning Valley Hospital lab.
Reference ranges: PT 12-14 secs; APTT < 41 secs
PT & PTT; Protime & APTT