Prothrombin Time & Activated PTT

Laboratory:Hematology

Test ID/Workstation: PTPTT MACG1

Specimen Type: Blood

Tube Type: Blue top (sodium citrate) tube

Collection Volume: 2.7 mL

Cause for rejection: Specimen hemolyzed, clotted, diluted with IV fluid; contaminated with heparin; improperly filled; not kept on ice; received > 1 hr after drawn

Storage: Refrigerated

Availability: Daily, 24 hours; STAT

Methodology: Optical Light Scatter Detection Clotting Assay

Special Instructions: 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.

OC Power Word: LVPTPTT

Lab/Phone: 330-746-9623

TAT: 4 hours

Additional Info: Reference ranges: PT 12-14 secs; APTT < 41 secs

Synonyms: PT & PTT; Protime & APTT

Requisition Form
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