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Test Code FOL Folate, Serum

Additional Codes

LAB69

Aliases

Folic Acid

Patient Preparation

Patient should be fasting for 8 hours.

Special Collection Instructions

Protect specimen from light

Collection Method

Venous collection

Minimum Volume

0.5ml

Container

Gold Top / Serum Separator / Additive Free

Acceptable Specimens

Serum:

  • Gold Top SST
  • Red Top

Reference or Target Ranges

>4.0ng/ml

Reportable Units

ng/ml

Critical Value

Not defined for this assay

Reasons for Rejection

Hemolysis Threshold 25 mg/dL
Icterus Threshold 29 mg/dL
Lipemia Threshold 1500 mL
Other QNS, contaminated, improperly labeled, improper specimen type, specimen not light protected

Specimen Stability

Ambient 2 hours
Refrigerated (4°C to 8°C) 48 hours
Frozen(-40°C to 0°C) 4 weeks

CPT Codes

82746

Performance Information

Days and Time Performed 24/7
Expected Turn Around Time Routine: 4 hours
Stat Availability No
Performing Bench CPH Chemistry
Methodology/Method Description Roche Cobas 

Last review/edit date

March 2024