TEG (THROMBELASTOGRAPH) WITH PLATELET MAPPING
test app
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Specimen Type:
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Whole blood
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Container/Tube
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Preferred/Acceptable:
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1.8 mL Light blue-top (Citrate) Vacutainer® AND dark green-top (Sodium Heparin) Vacutainer®
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Collection Volume:
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1 Light blue-top Vacutainers® (1.8 mL) should be full (to markings on tube label. MINIMUM tube volume for collection is to marking on tube label, but may go above line.)
AND
drk green-top Vacutainer® should be full (4.0 mL). Minimum volume for collection is 2.0 mL.
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Patient Preparation:
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No special patient preparation is required. However, if possible, please call lab (at least 2 hours prior to collection) to notify them that a specimen will be sent.
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Sample Rejection
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Vacutainer®(s) that are under-filled.
Specimen sent in microtainer.
Clotted specimens.
Grossly hemolyzed specimens.
Mislabeled or unlabeled specimens.
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Special Instructions:
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1.
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Immediately invert tubes gently 5-8 times after collection to ensure proper mixing of blood and anticoagulant (this will avoid specimen clotting). Forward promptly at ambient temperature only.
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2.
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Draw a discard tube prior to light-blue top tube. Collect blue-top tube before green-top tube.
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3.
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DO NOT underfill tube(s)
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4.
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Blood should not be obtained through a heparinized access line, lock or indwelling heparin lock.
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5.
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SPECIMEN MAY NOT BE COLLECTED BY CAPILLARY METHOD
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6.
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If the patient has a known hematocrit >55%, contact the lab at 454-4268 for collection instructions and a specially adjusted collection tube(s).
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Day(s) Test Set Up:
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Monday-Sunday
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Cut-off time:
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None; performed as received
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Turnaround Time:
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Same day
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Lab Testing Section:
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Coagulation |
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Reference Range:
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Reaction Time (R) |
5.0-10.0 min
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Clot Time (K):
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1.0-3.0 min
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Angle (A):
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53.0°-72.0°
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Max Amp (MA):
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50.0-70.0 mm
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G para (G):
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4.5-11.0 kd/sc
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Lysis 30:
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< or = 8.0%
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%ADP Inhibition:
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None established
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%AA inhibition
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None established
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Critical Values:
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Reaction Time (R) |
< or =3.0 min or > or = 14.0 min |
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Clot Time (K):
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<0.5 min or > or = 6.0 min
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Angle (A):
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< or = 35.0° or > or = 80.0°
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Max Amp (MA):
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< or = 35.0 mm or > or = 90.0 mm
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G para (G):
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< or = 3.0 kd/sc or > or = 14.0 kd/sc
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Lysis 30:
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> or = 15.0% |
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%ADP Inhibition:
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None established
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%AA inhibition:
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None established
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Limitations:
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Interfering substances: the TEG may be affected by hemodilution, cardioplegia solutions, hypothermia, platelet dysfunction, hypofibrinogenemia, or other coagulopathies, and certain medications. Test results that do not agree with expected values should be verified and thereafter evaluated by alternative diagnostic means.
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Methodology:
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Electro-mechanical clot detection |
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Lab Processing instructions:
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DO NOT SPIN. Tube should go directly to the coag. bench.
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Processed Volume:
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1.8 mL Vacutainer with blood level to line on label (may be over).
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Analyte Stability:
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Ambient: 2 hours
Refrigerated: DO NOT refrigerate
Frozen (-70C): DO NOT FREEZE
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NOTES:
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Reject due to under-filled tube(s) or if clotted specimen
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EPIC order name:
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TEG-platelet mapping (Heparin/LMWH therapy) (EPIC Test# LAB5701)
or
TEG-platelet mapping (no heparin/LMWH therapy) (EPIC Test# LAB5700)
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Cerner order name:
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TEG PltMap+Heparin or TEG PltMap No Heparin
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CPT Codes:
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85396
85576x3
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LOINC Value:
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NA
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Synonyms:
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Last Updated: 06/20
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Last Reviewed: 11/23
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