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HelpPartial Thromboplastin Time
Methodology
STAGO Compact Electromagnetic Mechanical Clot Detection
Performing Laboratory
Heart of the Rockies Regional Medical Center
Specimen Requirements
Specimen Type: Plasma, citrated
Container/Tube: Light-blue top
Specimen Volume: Full tube
Additional Information: Specimens must be brought to the lab within four hours of collection. See transport temperature for details.
Specimen Transport Temperature
Plasma may be held at room temperature (20 5 °C) for a maximum of four (4) hours or separated, double-spun, and frozen at -20 to -80 °C in a plastic tube.
Specimens that are centrifuged and plasma separated from the cells can be kept for four hours refrigerated or at room temperature.
Reference Values
25.6-37.9 seconds
Day(s) Test Set Up
All
Test Classification and CPT Coding
85730