Stanford Hospital & Clinics and Lucile Packard Children’s Hospital

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   The CPT codes                provided 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 payer being billed.
RESULT
Found 1 matches for: RIST
Ristocetin Co-Factor Order Code:  RIST
Synonyms: von Willebrand Factor Activity
Specimen Type: Platelet-Poor Plasma
Container Type: Light-blue-top tube (Sodium citrate)
Required Volume: Full tube (4.5 mL blood)
Minimum Volume (Pediatric): Full tube (2.7 mL blood or 1.8mL blood depending on size of tube used)
Methodology: Agglutination
Standard Run Times: Daily
Turnaround Time: 24 hours/next day
Special Handling: Within 1 hour of collection, centrifuge tube as required to obtain platelet poor plasma. Aliquot platelet poor plasma into plastic tubes (minimum 2 aliquots). Freeze immediately. Transport Frozen
CPT Codes: 85245
Causes For Rejection: Clotted, gross hemolysis, improperly filled tube, received thawed.