Related Questions

If my husband takes testosterone shots on thursday at. 06 or 120mg, when should he take a blood test to check his testosterone level?

Peak & trough levels. We need both peak (highest) & trough (lowest) levels to determine optimal dose & frequency. We typically recommend checking peak level a day or two after an injection while we check trough level a day before injection (or perhaps that morning prior to getting shot). Peak level is affected by dose while trough level is affected by frequency of injection. There are other labs that should be monitore. Read more...

How much do testosterone levels vary in young men throughout the day. Should the levels always stay in the "normal" range. Free testosterone blood test was low but at 3:30pm, had two tests both low.

Higher in am. Values are higher in the morning and drop in the eventing. Only lab drawn between 8-10 am are valid. Read more...
Family practice . Levels are usually higher in the morning. You probably need replacement. Why are you low. Diabetics , chronic pain management pts, and body builders on steroids are usually low. You are young so get it checked out. Read more...
Vary throughout day. It varies throughout the day. We want to measure your peak level when evaluating for low testosterone. Lab draw should be before 10 am. If the level come back low, you need to find out the cause before jumping to treatment. Read more...

Is there any other way to test testosterone levels, other than seeing a doctor for a blood test?

Walk-in labs. Some jurisdictions have labs that will let you get tested without a physician's asking. Why do you ask? At age 21, if you're fully masculinized, with body hair appropriate to your genetics and normal sexual function, your testosterone level is probably fine. If you're having erection dysfunction even with your favorite images / thoughts, consider prolactinoma, hemochromatosis, and more. Read more...

Could a TSH blood test detect low testosterone levels?

No. Tsh or thyroid stimulating hormone is only good for assessing thyroid function (either good, overactive or underactive). With that said, during that same blood draw, your blood could potentially be checked for testosterone to determine how much you have. This is best done in the morning. Remember that we really should treat the person (and symptoms), not just a number. Make sure benefit > risk. Read more...

Could extreme anxiety during a blood test throw off testosterone levels?

Not really. Not unless you have been tense/anxious worried for a prolonged period. Testosterone is a steroid hormone (chemical largely bound to other components in the blood and has survises for several hours. Read more...