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HelpTest Code PLT MAP Platelet Mapping Test
Clinical System Name
Platelet Mapping Test
Synonyms
None specified
Description
The PlateletMapping™ assay measures the effectiveness of platelet-inhibiting drugs. The effectiveness of the platelet-inhibiting drugs is then measured on the TEG® analyzer. The results are reported as % inhibition and/or “Net G” which are measures of the clot strength.
Sample Requirements
Specimen: Whole Blood
Container(s): Lt Blue/Citrate and Dark Green / Sodium Heparin (No gel separator)
Preferred Vol: 1.8 mL (citrate) and 2.0 mL (Na heparin)
Minimum Vol: N
Note: Do NOT use tube system to transport samples, must be hand carried to the laboratory. Do not agitate the sample. Testing must be performed with in 2 hours of collection.
Preferred method of collection is venipuncture with vacuum fill. Test results are affected by incorrect blood volume. 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 trasferred to the Lt Blue/Citrate tube by use of a blood transfer device to ensure proper fill.
Processing Instructions
Reject due to: Clotted, Insufficient quantity, and Improper collection.
Spin :N
Aliquot :N
Temp: RT
Storage location: Core lab Coagulation department.
Note: Deliver blood to Core Coag bench. Coag Technologist will process.
Do not centrifuge specimen. Test should be set up within 2 hours of collection.
Off-site collection: Cannot be collected outside Children's. Contact Laboratory for additional information.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
|
Whole blood Lt Blue/Citrate and Dark Green/Sodium Heparin |
Room temp | 2 h |
| Refrigerated | N | |
| Frozen | N |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | daily | 3 h |
Must be collected 9:00 AM - NOON. Test is available to Berlin Heart patients ONLY - 7 days/wk.
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Coagulation
Phone Number: 206 987-2578
Reference Range
Reference range determined by provider.
Methodology
Method: kinetic changes in a sample of citrated whole blood, by the Haemoscope TEG 5000.
Analytical Volume: 1 mL Whole blood
Limitations: Method is affected by improper handling. Do not use tube system to transport samples. Do not aggitate samples, testing must be performed with in 2 hours.
CPT Codes
85576
Special Instructions
Links to:
Consent Forms
Algorithms
Requisition
Req
Clinical Utility
Clinical Utility
Critical Values
Not defined for this test.
Send Out Instructions
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