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Test Code LAB3723 VerifyNow P2Y12 Assay

Important Note

Call Core Coag lab (7-2561) and request a VerifyNow sample collection kit prior to draw.

Do NOT use tube system to transport samples. Samples must be hand-carried to the laboratory. Do not agitate samples. Collect blood sample using largest bore needle possible. Butterfly needles (21 gauge) are ok to use.

CPA: After hours or on weekends, fill out a UW General Lab Requisition, make a copy for Send Outs, and send sample(s) via Delivery Express DIRECT to HMC GWH 47.

Clinical System Name

Miscellaneous Test

Synonyms

Ticolpidine

VerifyNow PRU

Verify Now

Prasugrel

Ticlid

Clopidogrel

Plavix

Efient

Effient

Sample Requirements

Specimen: Whole Blood

Container(s): 2 Greiner Citrate Tubes - obtain from Core Coag Lab, ext. 7-2561

Preferred Vol: (2) 2.0 mL tubes - please read instructions in note before drawing.

Minimum Vol:

 

Note: Do NOT use tube system to transport samples. Samples must be hand carried to the laboratory. Do not agitate samples. Collect blood sample using a 21 gauge needle or larger. Butterfly needles (21 gauge) are okay to use. Sample(s) must reach Harborview Medical Center (HMC) within THREE hours of collection.

 

Preferred method of collection is venipuncture with vacuum fill. Test results are affected by incorrect blood volume. Use 21 gauge or larger needle. Draw blood directly into vacutainer tubes, no syringe draws. Invert sample 4-5 times only.

 

Use of a Vascular Access Device for the collection of coag testing is not recommended. If this method is used it requires a 5 cc clearing volume; 3 cc for size 2 French catheter or smaller. Blood must be transferred to the Greiner Citrate tubes by use of a blood transfer device to ensure proper fill.

 

Lab: Greiner Citrate tube kits are located in the Core Coag Lab, ext. 7-2561.

Processing Instructions

Reject due to:

Spin: N

Aliquot: N

Temp: RT

Storage Location: If received during business hours, notify Send Outs immediately. After hours or on weekends, fill out a UW General Lab Requisition, make a copy for Send Outs, and send sample(s) via Delivery Express DIRECT to HMC GWH 47.

 

Off-site Collection:

Stability

Specimen Type Temperature Time
Whole Blood Room Temp < 3 h
  Refrigerated Unacceptable
  Frozen Unacceptable

 

Availability

STAT Performed TAT
Y Daily 1 d

 

Performing Laboratory

Harborview Medical Center (HMC)

Clinical Coagulation Lab

325 9th Ave, Room GWH 47

Seattle, WA 98195

 

Phone Number: (206) 744-3128

Department

Department: Send Outs

Phone Number: (206) 987-2563

CPT Codes

85576

Methodology

Method: VerifyNow System

Analytical Volume: 2.0 mL Whole Blood

Limitations: Results could be affected by the following: GPIIb/IIIa inhibitors, low HCT, low PLT or inherited platelet disorders. Patients with HCT<20% or PLT<50 K/uL cannot be tested with the VerifyNow Assay.

Send Out Instructions

Reference Test Name: VerifyNow P2Y12 Assay
Reference Test Code: VERP2Y
Instructions: If received during business hours, notify Send Outs immediately. After hours or on weekends, fill out a UW General Lab Requisition, make a copy for Send Outs, and send sample(s) via Delivery Express DIRECT to HMC GWH 47.

 

Reference Ranges

See individual components.