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Test Code: FSH Preferred Name Follicle stimulating hormone

Yes
2 hours
Weekdays Only
6 hours (Weekdays)
Medicare Item
N/A

Test Tubes

ImageSpecimen TypeSpecimen VolumeTube Type
Blood (adult)4 mLSST with gel 8.5 mL (Dark Yellow Top)
Blood (paediatric)1 mL2x SST with gel 600 uL Paed (Red or Yellow top)
Blood (neonatal)500 µLSST with gel 600 uL Paed (Red or Yellow top)

COLLECTION NOTES

--No collection notes--

GENERAL NOTES



APPLICATION:  Investigation of gonadal hypofunction, suspected pituitary tumour.

INTERPRETATION:  Levels of follicle stimulaing hormone (FSH) are increased when pituitary secretion occurs in the absence of feedback inhibition by the gonadal androgens or oestrogens: primary gonadal hypofunction, post-menopausal state, castration.  Increased levls may also be seen with pituitary gonadotroph tumours, although some tumors secrete only the alpha subunit.  
Levels are decreased if ovarian or testicular failure is due to pituitary or hypothalmic disease.

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