- FIB4R
FIB-4 w/reflex to NASH FibroSure® Plus
Specimen:
Test Code
FIB4R
Specimen Name
FIB-4 w/reflex to NASH FibroSure® Plus
Collect
1-EDTA, 2-SST
Submit
4 mLs (Min: 3 mLs) serum divided into 2 transport tubes; 4 mLs EDTA Whole Blood
Special Handling
Serum: Separate from cells within 45 minutes of collection; Whole blood: Invert EDTA tube immediately 8 to 10 times once tube is filled at the time of collection
Rejection Criteria
Serum: Gross hemolysis; gross lipemia; improper labeling; nonfasting specimen; patient younger than 14 years of age; Whole blood: Hemolysis; clotted specimen; tube not filled with minimum volume; improper labeling; transfer tubes with whole blood; specimen diluted or contaminated with IV fluid; specimen received with plasma removed; specimen collected in any anticoagulant other than EDTA
Stability
Preferred/Transport Refrigerated Serum 14 days, Whole blood 3 days; Ambient Serum 7 days, Whole blood 1 day; Frozen Unstable
Methodology
Please see individual components for methodology
Performed
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Reported
2-8 days
CPT Codes
- 84450
- 84460
- 85049
Components
Alanine aminotransferase (ALT/SGPT); aspartate aminotransferase (AST/SGOT); FIB-4 Index (by calculation); platelet count. If FIB-4 Index is >1.29, testing will reflex to NASH FibroSure® Plus, performed at an additional charge.
Additional Information
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Test Information
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Common Test Phrases
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Common Lab Definitions
- Serum
- Plasma
- STT