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Nonalcoholic Steatohepatitis (NASH)-FibroTest, Serum and Plasma
Test CodeNSFIB
Alias/See Also
NASH,
steatosis
steatosis
CPT Codes
0003M
Preferred Specimen
Both serum and plasma are required for this test.
Patient Preparation
Fasting for at a minimum of 12 hours is required. THIS TEST IS NOT OFFERED FOR PATIENTS YOUNGER THAN 14 YEARS OF AGE. TESTING WILL BE CANCELED IF A SPECIMEN IS RECEIVED FROM A PATIENT IN THIS AGE GROUP
Minimum Volume
Serum: 2 mL,
Plasma: 0.25 mL
Plasma: 0.25 mL
Instructions
4 mL serum in an amber vial
1. Centrifuge and aliquot serum into an amber vial within 2 hours of collection.
2. Centrifuged serum must be light protected within 4 hours of collection. It is acceptable to draw the blood and then protect it from light after centrifugation if it is within 4 hours of collection.
3. Label specimen as serum. 1 mL plasma from a gray top (potassium oxalate/sodium fluoride)
1. Centrifuge and aliquot plasma into plastic vial.
2. Label specimen as plasma.
1. Centrifuge and aliquot serum into an amber vial within 2 hours of collection.
2. Centrifuged serum must be light protected within 4 hours of collection. It is acceptable to draw the blood and then protect it from light after centrifugation if it is within 4 hours of collection.
3. Label specimen as serum. 1 mL plasma from a gray top (potassium oxalate/sodium fluoride)
1. Centrifuge and aliquot plasma into plastic vial.
2. Label specimen as plasma.
Transport Container
Amber vial of serum, Plastic vial of plasma
Transport Temperature
Refrigerated
Specimen Stability
SERUM
Room Temperature: 24 hours
Refrigerated: 7 days
Frozen: 14 days
PLASMA
Room Temperature: 7 days
Refrigerated: 7 days
Frozen: 14 days
Room Temperature: 24 hours
Refrigerated: 7 days
Frozen: 14 days
PLASMA
Room Temperature: 7 days
Refrigerated: 7 days
Frozen: 14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum not light protected, gross hemolysis, gross lipemia, gross icterus, patients <14 years old
Methodology
Automated Turbidimetric Immunoassay,
Nephelometry,
Photometric Rate,
Enzymatic Colorimetric
Setup Schedule
Monday - Friday
Report Available
2 - 4 days
Performing Laboratory
Mayo Clinic Laboratories - Rochester Main Campus
200 First Street SW,
Rochester, MN 55905