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Test Code LAB93786 TEG Platelet Mapping (Cardiac)

Important Note

This test can only be ordered, collected and performed at Grant and Mansfield Laboratories.

Additional Codes

TEG, TEGPLTCARD

Reporting Title

TEG Platelet Mapping (Cardiac)

Methodology

TEG® 6s Hemostasis Analyzer evaluates the level of platelet inhibition by recording the kinetic changes in a sample of anticoagulated whole blood in the presence of different agonists (AA, ADP) as the sample clots, retracts and/or lyses in real time.

 

Indicated for monitoring a patient's platelet function in the presence of inhibitors.

Performing Laboratory

Grant and Mansfield Laboratories

Specimen Requirements

Specimen Type:

Whole Blood

 

Specimen Required:

 

Container/Tube: Green Top tubes (Whole Blood Sodium/Lithium Heparin)

 

Specimen Volume: Tubes must be filled to arrow to ensure appropriate anticoagulant to blood ratio.

 

Collection instructions:

  1. Prepare the arm for normal phlebotomy using alcohol sponge and sterile gauze. Apply tourniquet and make a clean venipuncture using a 19 - 21G butterfly needle. Discard the first 3-5 ml, which contains tissue contaminants (can be used for other, non-coagulation testing). Draw 4 ml green-capped tube containing sodium or lithium heparin.
  2. Collection of whole blood from indwelling venous blood line.
  • Do not obtain blood from a heparinized access line, lock, or indwelling heparin lock.
  • Discontinue fluid drip, if required.
  • Draw 10 cc of blood with one syringe – discard.
  • Draw green-capped tubes

 

Samples can be used after a 30-minute incubation (laying flat on their side) and within 2 hours of draw to maintain in-use stability

Specimen Stability

TEG testing must be completed by the following times after collection: 3 hours (GMC and MH)

Reference Values

HKH-MA 53-68 mm

ActF-MA 2-19 mm

ADP-MA 45-69 mm

ADP % INHIB 0-17%

ADP % AGG 83-100%

AA-MA 51-71 mm

AA % INHIB 0-11%

AA % AGG 89-100%

Limitations: TEG 6s analyzer results should always be considered within the clinical context of the individual patient’s case. In the event of inconsistencies with the patient’s clinical status, samples should be repeated or supplemented with additional clinical information and/or data including performance verification in the user’s patient population.

Day(s) Test Set Up

Monday through Sunday

24 hours a day

CPT Code

TEG 85347

Fibrinogen 85384

Platelet aggregation 85576