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Order Code SEND TO METHODIS CALL LAB Platelet Function Analysis (PFA), Blood

Important Note

Please schedule this test ahead:  Tubes must be requested from Methodist and delivered to drawing location.  RMC courier must be lined up as specimen must be at Methodist in less than 3 hours.  Call Pathway Lab to let them know specimen is in transit.

Patients may also go to Park Nicollet Chanhassen clininc or other Park Nicollet clinic to have specimen collected.  Send appropriate Outpatient order with patient.

Specimen Requirements

Order code PFA on Pathway form.

 

Specimen must arrive at Methodist Hospital Laboratory within 3 hours of draw. Call Methodist Pathways Laboratory at 952-993-5000 before sending specimen.

 

Note:  When ordering PFA, also order PLT Platelets, Blood. Testing can only be done if platelet count is >100,000 x 103/mm3.

 

EDTA and sodium citrate whole blood are required.

 

EDTA Blood

Draw blood in a 3-mL lavender-top (EDTA) tube supplied by Methodist with a 21-gauge needle or larger, and send at least 3 mL of EDTA whole blood. Invert several times to mix blood. Do not centrifuge. (Specimen drawn in tube other than 3-mL EDTA supplied by laboratory or line draw is not acceptable.) Forward promptly at ambient temperature only.

Note:  Do not send specimen through pneumatic tube system.

 

Sodium Citrate Blood

Draw 2 full, 2.7-mL light blue-top (sodium citrate) tube supplied by Methodist with a 21-gauge needle or larger, and send sodium citrate whole blood. Allow tube to fill completely. Invert gently several times to mix blood. Do not uncap tube. Do not centrifuge. (Specimen drawn in tube other than 2.7-mL sodium citrate supplied by laboratory or line draw is not acceptable.) Forward promptly at ambient temperature only.

Note:  Do not send specimen through pneumatic tube system.

Reference Values

Test

COL/EPI

COL/ADP
Aspirin

Abnormal

Normal
von Willebrand Disease

Abnormal

Abnormal

Glanzmann’s Thrombasthenia

Abnormal

Abnormal

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Methodist Hospital Laboratory

Methodology

Activated Clotting (Closure Time)

Test Classification and CPT Coding

85014-Basic analysis

85049-Basic analysis

85576-COL/EPI

85576-COL/ADP (if appropriate)