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Test ID: FSH
Follicle-Stimulating Hormone (FSH), Serum

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Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Males

1-7 days: < or =3.0 IU/L

8-14 days: < or =1.4 IU/L

15 days-3 years: < or =2.5 IU/L

4-6 years: < or =6.7 IU/L

7-8 years: < or =4.1 IU/L

9-10 years: < or =4.5 IU/L

11 years: 0.4-8.9 IU/L

12 years: 0.5-10.5 IU/L

13 years: 0.7-10.8 IU/L

14 years: 0.5-10.5 IU/L

15 years: 0.4-18.5 IU/L

16 years: < or =9.7 IU/L

17 years: 2.2-12.3 IU/L

> or =18 years: 1.0-18.0 IU/L

 

TANNER STAGES*

Stage l: < or =3.7 IU/L

Stage ll: < or =12.2 IU/L

Stage lll: < or =17.4 IU/L

Stage lV: 0.3-8.2 IU/L

Stage V: 1.1-12.9 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

1-7 days: < or =3.4 IU/L

8-14 days: < or =1.0 IU/L

15 days-6 years: < or =3.3 IU/L

7-8 years: < or =11.1 IU/L

9-10 years: 0.4-6.9 IU/L

11 years: 0.4-9.0 IU/L

12 years: 1.0-17.2 IU/L

13 years: 1.8-9.9 IU/L

14-16 years: 0.9-12.4 IU/L

17 years: 1.2-9.6 IU/L

> or =18 years:

Premenopausal

Follicular: 3.9-8.8 IU/L

Midcycle: 4.5-22.5 IU/L

Luteal: 1.8-5.1 IU/L

Postmenopausal: 16.7-113.6 IU/L

 

TANNER STAGES*

Stage l: 0.4-6.7 IU/L

Stage ll: 0.5-8.7 IU/L

Stage lll: 1.2-11.4 IU/L

Stage lV: 0.7-12.8 IU/L

Stage V: 1.0-11.6 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.

 

Pediatric ranges derived for DXI method from analytic comparison to reference method in: Elmlinger MW, Kuhnel W, Ranke MB: Reference ranges for serum concentrations of lutropin (LH), follitropin (FSH), estradiol (E2), prolactin, progesterone, sex hormone-binding globulin (SHBG), dehydroepiandrosterone sulfate (DHEAS), cortisol and ferritin in neonates, children and young adults. Clin Chem Lab Med 2002;40(11):1151-1160



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