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Prothrombin Time

Laboratory - : Hematology

Test ID :
PT
Test Workstation :
MACG1
Specimen Type:
Blood
Tube Type:
Lt. Blue top (sodium citrate) tube
Collection Volume:
2.7 mL (minimum 1.8 mL) Must use appropriated sodium citrate tube based on volume of blood drawn (1.8 mL or 2.7 ml tube)
Minimum Volume:
1.8 mL using appropriate 1.8 mL tube
Preferred Volume:
2.7 ml using appropriate 2.7 ml tube
Cause for Rejection:
Sample hemolyzed, clotted, diluted with IV fluid; contaminated with heparin; improperly filled; received > 24 hr. after collection.
Storage:
Ambient
Availability:
Daily, 24 hours; STAT
Methodology:
Optical Light Scatter Detection Clotting Assay
Lab/Phone:
330-746-9623
TAT:
4 hours
Additional Info:
Reference range: 8.5-14.0 secs.
  • Recommended Therapeutic Range for Oral Anticoagulant Therapy: Prophylaxis of venous thrombosis, Treatment of venous thrombosis, Treatment of pulmonary embolism, Prevention of systemic, and Tissue heart valves- INR 2.0-3.0, Myocardial infarction ( to prevent systemic embolism), Valvular heart disease, Atrial fibrillation, Mechanical prosthetic valves - INR 2.0-3.0
  • CPT Code:
    85610
    Synonyms:
    Protime; PT

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