This test measures Sex Hormone-Binding Globulin (SHBG) in the blood. Sex hormone-binding globulin is a protein produced by the liver which binds to the hormones testosterone, dihyrdotestosterone and estradiol and transports them through the blood. The SHBG test is typically used to help evaluate whether a person has an excess or deficiency of testosterone. Hormones which are bound to SHBG are biologically inactive and not available for the body to use. If a person's SHBG levels are abnormal, then a testosterone blood test may not accurately represent the amount of testosterone which is available to be taken into the body's tissues.
This test is typically ordered when a person is experiencing signs of abnormal testosterone levels which do not seem to be reflected by their testosterone blood test results. Sex Hormone-Binding Globulin is usually ordered with a testosterone test and may be ordered with other hormone tests as well.
Turnaround time for the Sex Hormone-Binding Globulin test is typically 1-2 business days.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
This hormone test has no fasting requirements.
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