Partial Thromboplastin Time

Test Code
PTT


CPT Codes
85730

Preferred Specimen
Blue Sodium Citrate Plasma


Minimum Volume
1 mL


Transport Container
Blue Sodium Citrate


Transport Temperature
Room Temperature


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimen clotted, underfilled/overfilled tube


Methodology
Sysmex® CS-2500 System

Reference Range
24.0-31.0 seconds


Clinical Significance
Screening test that will detect deficiencies or inhibitors to the intrinsic (Factors VIII, IX, XI and XII) and common (Factors II, V, X and fibrinogen) pathway coagulation factors.


Performed By
RFGH Laboratory

Performing Laboratory
RFGH Laboratory



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.