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HelpTest Code LAB6929 TEG PLATELET MAPPING
Specimen Requirements
Green top tube (lithium heparin with no gel) filled completely by vacuum
Venipuncture: Use a 21 gauge needle or larger. Drawing a discard tube with no additive or discard syringe of 3-5 mL prior to collecting blood is strongly recommended. Suitable discard tubes include no additive tubes or a blue top marked "discard." After collection, gently invert the tube 5 times to mix.
Line Draw: When drawing from a line, be sure to use plastic syringes that are not heparinized. Using two syringes, discard 3x's the dead space (typically 10 mL). Using a safe transfer device (or a standard needle no smaller than 21 gauge), allow the blood collection tube to fill completely by vacuum. After collection, gently invert the tube 5 times to mix.
Specimen Volume
4.0 mL Dark Green Top tube
Turnaround Time
STAT: 2 hours
Routine: 2 hours
Test Schedule
Daily
Sample Stability
Dark green top whole blood: 2 hours at 20-25oC
Specimen Processing
Dark green top tube filled to capacity. Must be performed within 2 hours of collection.
Method
Viscoelastic
Reference Ranges
| Test | Range |
| HKH Max Amplitude | 53.0 - 68.0 mm |
| ActF Max Amplitude | 2.0 - 19.0 mm |
| ADP Max Amplitude | 45.0 - 69.0 mm |
| AA Max Amplitude | 51.0 - 71.0 mm |
| ADP % Inhibition | 0.0 - 17.0% |
| AA % Inhibition | 0.0 - 11.0% |
| ADP % Aggregation | 83.0 - 100.0% |
| AA % Aggregation | 89.0 - 100.0% |
Synonyms
TEG, TEG 6, TEG 6S, Platelet Mapping
Test Components
HKH Max Amplitude
ActF Max Amplitude
ADP Max Amplitude
AA Max Amplitude
ADP % Inhibition
AA % Inhibition
ADP % Aggregation
AA % Aggregation
Rejection Criteria
Clotted specimens, improperly filled liquid green top tube, specimens drawn with a needle smaller than 21 gauge, specimens more than 2 hours old, refrigerated or frozen specimens
CPT Codes
| Test | Code |
| HKH Max Amplitude | 85576 |
| ActF Max Amplitude | 85576-59 |
| ADP Max Amplitude | 85576-59 |
| AA Max Amplitude | 85576-59 |
| ADP % Inhibition | None |
| AA % Inhibition | None |
| ADP % Aggregation | None |
| AA % Aggregation | None |