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HelpTest Code LAB6927 TEG BASIC HEPARIN NEUTRALIZATION
Specimen Requirements
Blue top tube (buffered 3.2% liquid sodium citrate) filled to the indicator with whole blood
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 second 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
1.8mL Blue top (3.2% Sodium Citrate), or
2.7mL Blue top (3.2% Sodium Citrate), or
3mL Blue top (3.2% Sodium Citrate)
Turnaround Time
STAT: 2 hours
Routine: 2 hours
Test Schedule
Daily
Sample Stability
Blue top whole blood: 2 hours at 20-25oC
Specimen Processing
Liquid blue top tube filled to capacity. Must be performed within 2 hours of collection.
Method
Viscoelastic
Reference Ranges
| Test | Range |
| Citrated Kaolin Reaction Time | 4.6 - 9.1 min |
| Citrated Kaolin Max Amplitude | 52.0 - 69.0 mm |
| Citrated Kaolin w/Heparinase Reaction Time | 4.3 - 8.3 min |
| Citrated Kaolin w/Heparinase Lysis | 0.0 - 3.2% |
| Citrated RapidTEG w/Heparinase Max Amplitude | 53.0 - 69.0 mm |
| Citrated Functional Fibrinogen w/Heparinase Max Amplitude | 15.0 - 34.0 mm |
Synonyms
HN, TEG, TEG 6, TEG 6S, Citrated Kaolin, Citrated Kaolin w/Heparinase, Citrated RapidTeg, Citrated Functional Fibrinogen, Hemostasis
Test Components
Citrated Kaolin Reaction Time
Citrated Kaolin Max Amplitude
Citrated Kaolin w/Heparinase Reaction Time
Citrated Kaolin w/Heparinase Lysis
Citrated RapidTEG w/Heparinase Max Amplitude
Citrated Functional Fibrinogen w/Heparinase Max Amplitude
Rejection Criteria
Clotted specimens, improperly filled liquid blue 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 |
| Citrated Kaolin Reaction Time | 85347 |
| Citrated Kaolin Max Amplitude | 85576 |
| Citrated Kaolin w/Heparinase Reaction Time | 85347-59 |
| Citrated Kaolin w/Heparinase Lysis | 85390 |
| Citrated RapidTEG w/Heparinase Max Amplitude | 85576-59 |
| Citrated Functional Fibrinogen w/Heparinase Max Amplitude | 85384 |