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St. John Health System
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Follicle Stimulating Hormone - FSH, Serum

Order Name FSH
Test Number: 3601200
Revision Date 05/20/2021
Test Name Methodology LOINC Code
Follicle Stimulating Hormone - FSH, Serum
Chemiluminescence Assay 15067-2 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Serum Clot Activator SST Refrigerated
Alternate 1 1 mL (0.5) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Instructions Remove Serum/Plasma from cells/gel if testing delayed >24hrs.
Stability: Ambient 1 day. Refrigerated 7 days. Frozen 12 months.
GENERAL INFORMATION
Testing Schedule Mon - Fri 
Expected TAT 1-2 days 
Clinical Use Useful for evaluation of menstrual irregularities, work-up of patients with suspected hypogonadism, prediction of ovulation, evaluation of infertility and the diagnosis of pituitary disorders. 
CPT Code(s) 83001
Internal Comments 9/19/17 updated SU - JK
6/15/18 changed Specimen stability: Ambient 8 hours. Refrigerated 7 days. to
Stability: Ambient 1 day. Refrigerated 7 days. Frozen 12 months. JK
5/20/19 added lith hep as alternate specimen to match HNAM - JK
11/1/19 per Ryan H removed this from the instructions: - JK
Note: This test is NOT Recommended for Children 12 years and under.
Use Follicle Stimulating Hormone - FSH, Serum Ultrasensitive [Test Number: 3601200 ] for children 12 years and under.
Collection requirements for Ultrasensitive FSH indicate the separation of serum from cells ASAP or within 2 hours of collection.
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Chemistry