Test Details

Mnemonic

FER

Ordering Code

1000630

CPT-4 Code(s)

82728

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells and send 1.0 mL serum refrigerated in a screw capped plastic vial.

Alternate Specimen

Serum: Red top

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated

Rejection Criteria

Hemolyzed or lipemic specimens, plasma

Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Methodology

Immunoassay
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Reference Range

Pediatric:
<4 days Not established
4 - 14 days 100 - 717 ng/mL
15 days - 5 months 14 - 647 ng/mL
6 - 11 months 8 - 182 ng/mL

Female:
1 - 4 years 5 - 100 ng/mL
5 - 13 years 14 - 79 ng/mL
14 - 18 years 6 - 67 ng/mL
19 - 40 years 16 - 154 ng/mL
41 - 60 years 16 - 232 ng/mL
>60 years 16 - 288 ng/mL

Male:
1 - 4 years 5 - 100 ng/mL
5 - 13 years 14 - 79 ng/mL
14 - 15 years 13 - 83 ng/mL
16 - 18 years 11 - 172 ng/mL
19 - 59 years 38 - 380 ng/mL
>59 years 24 - 380 ng/mL
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Performing Laboratory

Quest SJC
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New York DOH Approval Status

Yes
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