Test Code LAB93786 TEG Platelet Mapping (Cardiac)
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:
- 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.
- 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