Children's Mercy Hospitals and Clinics
Name
Protime (PT) Mixing Study

Synonyms
PT Mixing Study

CMH Lab Section
Hematology

Specimen Requirements
2.7 mL in sodium citrate blue top tube

Availability
STAT
Routine

Turn Around Time
STAT 1 hour
Routine 4 hours

Special Instructions
PT will be performed prior to testing. PT result must be >20 for mixing study.

Processing Instructions
Deliver to Lab ASAP

Methodology
Automated, mechanical clot detection

Ranges
No reference ranges or interpretation

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