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Test Code FSH Follicle-Stimulating Hormone (FSH), Serum

Reporting Name

Follicle-Stim Hormone (FSH), S

Useful For

An adjunct in the evaluation of menstrual irregularities

 

Evaluating patients with suspected hypogonadism

 

Predicting ovulation

 

Evaluating infertility

 

Diagnosing pituitary disorders

Method Name

Electrochemiluminescence Immunoassay

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.6 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial within 2 hours of collection.


Specimen Minimum Volume

0.5 mL

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus Reject

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 7 days
  Frozen  180 days
  Ambient  24 hours

Reference Values

Males

<12 months: ≤3.3 IU/L

12 months-5 years: ≤1.9 IU/L

>5 years-10 years: ≤2.3 IU/L

>10 years-15 years: 0.6-6.9 IU/L

>15 years-18 years: 0.7-9.6 IU/L

>18 years: 1.2-15.8 IU/L

 

TANNER STAGES*

Stage l: <1.5 IU/L

Stage ll: <3.0 IU/L

Stage lll: 0.4-6.2 IU/L

Stage lV: 0.6-5.1 IU/L

Stage V: 0.8-7.2 IU/L

*Puberty onset occurs for boys at a median age of 11.5 (± 2) years. For boys, there is no proven relationship between puberty onset and body weight or ethnic origin. Progression through Tanner stages is variable. Tanner stage V (adult) should be reached by age 18.

 

Females

<12 months: 1.2-12.5 IU/L

12 months-10 years: 0.5-6.0 IU/L

>10 years-15 years: 0.9-8.9 IU/L

>15 years-18 years: 0.7-9.6 IU/L

Premenopausal:

Follicular: 2.9-14.6 IU/L

Midcycle: 4.7-23.2 IU/L

Luteal: 1.4-8.9 IU/L

Postmenopausal: 16.0-157.0 IU/L

 

TANNER STAGES*

Stage l: 0.6-4.1 IU/L

Stage ll: 0.3-5.8 IU/L

Stage lll: 0.1-7.2 IU/L

Stage lV: 0.3-7.0 IU/L

Stage V: 0.4-8.6 IU/L

*Puberty onset (transition from Tanner stage I to Tanner stage II) occurs for girls at a median age of 10.5 (± 2) years. There is evidence that it may occur up to 1 year earlier in obese girls and in African American girls. Progression through Tanner stages is variable. Tanner stage V (adult) should be reached by age 18.

Day(s) Performed

Monday through Sunday

CPT Code Information

83001

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FSH Follicle-Stim Hormone (FSH), S 15067-2

 

Result ID Test Result Name Result LOINC Value
FSH Follicle-Stim Hormone (FSH), S 15067-2

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Report Available

Same day/1 to 2 days

Forms

If not ordering electronically, complete, print, and send an Oncology Test Request (T729) with the specimen.