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Test Code STER Sterols, Plasma

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Plasma


Necessary Information


Biochemical Genetics Patient Information (T602) is recommended, but not required, to be filled out and sent with the specimen to aid in the interpretation of test results.



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Green top (sodium or lithium heparin)

Acceptable: Lavender top (EDTA), pearl white top (EDTA plasma gel), yellow top (ACD solution A or B)

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Centrifuge specimen and aliquot plasma into plastic vial.

2. Send plasma frozen.


Specimen Minimum Volume

0.1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Frozen (preferred) 92 days
  Refrigerated  28 days
  Ambient  14 days

Reference Values

7-DEHYDROCHOLESTEROL

≤2.0 mg/L

 

8-DEHYDROCHOLESTEROL

≤0.3 mg/L

 

8(9)-CHOLESTENOL

≤5.0 mg/L

 

CAMPESTEROL

≤8.0 mg/L

 

CHOLESTANOL

≤6.0 mg/L

 

DESMOSTEROL

≤2.5 mg/L

 

DIHYDRO T-MAS

≤0.3 mg/L

 

LATHOSTEROL

≤6.0 mg/L

 

SITOSTEROL

≤15.0 mg/L

 

SQUALENE

≤1.0 mg/L

 

STIGMASTEROL

≤0.5 mg/L

Day(s) Performed

Tuesday, Friday

CPT Code Information

82542

Report Available

3 to 7 days

Specimen Retention Time

1 month

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK