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Test Code 5332 Retinol Binding Protein

Performing Laboratory

Quest Diagnostics Nichols Institute

Specimen Type


Specimen Required

Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable. Spin down and send 2 mL of serum refrigerated in a plastic vial.


Required: Fasting for at least 12 hours.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  90 days

Reference Values

1.5 - 6.7 mg/dL

Day(s) and Time(s) Performed

Tuesday, Friday

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FREB Retinol Binding Protein 1836-6


Result ID Test Result Name Result LOINC Value
Z1558 Retinol Binding Protein 1836-6

Method Name

Fixed Rate Time Nephelometry