Activated Partial Thrombin Time (APTT) Mixing Studies PTTM

Method(s) Clot Detection
Specimen Required
Collect

One adequately filled 3.0 mL light blue (sodium citrate) top tube.

Transport Whole blood at 20 - 25ºC.
Remarks

Draw blood into the citrate tube (light blue cap) filled to the proper level (1 part anticoagulant to 9 parts blood). Invert tube 3-4 times to avoid clotting.

Stability Ambient; Refrigerated Plasma: 4 hours; Frozen Plasma: 2 weeks
Unacceptable Conditions Specimens that are clotted, collected in the wrong specimen tube, less than 90% filled or hemolyzed are not acceptable for testing.
Schedule Daily-24 hours per day
Billing Code 4010120
CPTCode 85732 x 2
Preferred Specimen Collection Device(s)
Reference Interval

22.0 - 32.6 seconds

No Appointment Necessary
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12 Patient Service Centers in Central New York.

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