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Epic Code LAB1230586 TEG Platelet Mapping Assay (ADP & AA)

Important Note

Dedicated specimen required.

  • Do not consolidate with other coagulation tests.
  • Specimens MUST BE HAND DELIVERED and clarify to the recipient that the item is a TEG
    • Butterworth Blood Bank
    • DO NOT USE PNEUMATIC TUBE SYSTEM
  • Inpatients may only be drawn at
    • 100 Michigan Street (Medical Center - Butterworth and Helen DeVos Children's Hospital)
  • Outpatient may only be drawn at
    • 35 Michigan Lab.

Test Name Alias

Platelet Mapping Assay | TEG 6s Platelet Mapping Collection | Thromboelastograph (TEG)

Interface Order Alias

1230586

Clinical Information

The platelet mapping assay assesses platelet function with or without the effect of anti-platelet drugs in whole blood.

  • HKH = Kaolin with Heparinase
  • ActF = Activator F
  • ADP = adenosine-5’-diphosphate
  • AA = Arachadonic Acid
  • % Inhibition: Indicates the reduction in platelet contribution to overall clot strength.

Ordering Instructions

For TEG Manager Access: Place a ServiceNow request and request “TEG Viewer”.

Icons & Photos

Collection Instructions

Specimen Collection: Blood

 

Container(s): 4.0 mL Green Top Lithium Heparin Non-Gel 

Preferred Volume to Collect: 4 mL

Capillary collect ok? No

Microtainer acceptable: No

 

Collection Instructions:

 

Platelet Mapping Assay: 

Assesses platelet function with or without the effect of anti-platelet drugs.

 

Venipuncture:

  • Use a 21-gauge needle or larger - a 21-gauge butterfly with tubing is OK.  Never use a smaller gauge needle.
  • Draw a discard tube (no additive or light-blue top marked “discard”) or discard syringe of 3-5 ml prior to collecting blood for TEG® analysis - required.
  • Completely fill a Lithium Heparin Non-Gel Green Top BD tube. 
  • Immediately gently invert the tube 5 times.

Arterial Line or Central Line:

Draw per the population appropriate Central Venous Catheter (CVC): Insertion, Maintenance, Utilization and Removal policy or Arterial Line: Insertion, Maintenance, Obtaining Samples, and Removal Policies.

  • Key Points:
    • Do not use heparinized syringes.
    • If closed blood sampling system is not in use, draw a discard tube (no additive or light-blue top marked “discard”) or discard syringe of 3-5 ml prior to collecting blood for TEG® analysis – required.
    • The amount of waste required is:

      • Adult- 5ml
      • Pediatric- 4ml
      • Neonatal- 2ml
    • Completely fill a Lithium Heparin Non-Gel Green Top tube.
    • Immediately gently invert the tube 5 times.

Specimen Transport:

  • Walk all TEG specimens to the Blood Bank. 
  • Do not use the pneumatic tube system.

When Collecting for Both Assays (Global Hemostasis & Platelet Mapping) draw order:

  • 3.2% Sodium Citrate light-blue top tube marked discard (if from arterial line or central line closed blood sampling system is in use-skip this step).
  • 3.2% Sodium Citrate light-blue top tube.
  • Lithium Heparin Non-Gel Green top tube.

If there are questions regarding ordering and/or collection, please contact the Lab Call Center. If there are questions regarding interpretation please contact Dr. Kay Aardema, Medical Director of Point of Care or the Clinical Pathologist on call.

Rejection Criteria

  • Specimens that are under or over filled
  • Specimen sent in pneumatic tube system
  • Specimen has been thawed

Specimen Stability

Ambient: 2 hours

Laboratory Retention: 24 hours

Test Frequency

Available daily

Reference Range

Parameter Range Units
HKH 53 to 68 mm
ActF 2 to 19 mm
ADP 45 to 69 mm
AA 51 to 71 mm
ADP % Inhibition 0 to 17 %
AA % Inhibition 0 to 11 %

 NOTE: Reference ranges not established for patients under 18 years old

 

Performing Department

Blood Bank

Performing Department Laboratory Location

Spectrum Health Butterworth Laboratory. Grand Rapids, MI

Methodology

Currently unavailable

CPT

HC POC TEG PLATELET AGGREGATION IN VITRO EACH AGENT [85576 (CPT®)]

CDM Code

Currently Unavailable

Epic Test ID

1230102206

LOINC

Currently Unavailable

Beaker LOINC

PM AA %INH, POC: N/A
PM AA MA, POC: 52778-8
PM ACT F MA, POC: 53814-0
PM ADP %INH, POC: N/A
PM ADP MA, POC: 53813-2
PM HKH MA, POC: N/A

Mayo Access Code

Currently Unavailable

Resources

PolicyTech #24255

Reviewed Date

1/7/21

Beaker Names

Beaker Procedure Name: TEG 6S PLATELET MAPPING ADP AND AA COLLECTION
Beaker Display Name: TEG 6s Platelet Mapping ADP and AA Collection
BEAKER TEST NAME: TEG PLATELET MAPPING ADP and AA COLLECTION
BEAKER TEST REPORT NAME: TEG Platelet Mapping ADP and AA Collection

Beaker Synonyms

No synonym on file

Beaker Location, Container and Temperature

BW BB POCT TEG: 4 ML GREEN LI HEPARIN TUBE A (Preferred)-Ambient