Prothrombin Time (PT) (LABCORP)

Test Code

99901000145

Alias/See Also

LAB320: PT Prothrombin Time with INR
LAB8026:
LAB320A: Prothrombin Time | LABCORP EAP: 005199

CPT Codes
85610x1

Preferred Specimen

LABCORP LAB: LT BLUE TOP-CITRATE (Frozen) Min Vol: .5

Transport Temperature

Special Instructions Date and time specimen was drawn must be written on tube of blood and request form. Specimen Plasma, frozen Volume 1 mL Minimum Volume 0.5 mL Container Lavender-top (EDTA) tube; EDTA is the only acceptable anticoagulant. Collection Tube must be filled completely and kept tightly stoppered at all times. Mix well. Specimen must be placed on ice immediately. Separate plasma from cells within 15 minutes of collection. Patient should not clench fist. Transfer specimen to a plastic transport tube before freezing. Avoid contamination of samples by ammonia from smoking or traffic in the laboratory or patient’s room, glassware, or water. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Report Available

LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min

Last Updated: March 6, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.