"TESTOSTERONE, SERUM" VS. "TESTOSTERONE, TOTAL"

can't find the answer to this anywhere but it would definitely clear a lot of things up.
could it be that bloodwork that says simply "Testosterone" or "Testosterone, serum" is your test level WITHOUT factoring in free test, hence "Testosterone, Total" in other tests?
i'm starting to think this is the case for the reasons below..

for years i've been getting bloodwork done and the results always read "Testosterone" or "Testosterone, serum" without ever checking my free test, so i've been basing my response/expectations for test levels on those numbers.
i recently got bloodwork and this time it says "Testosterone, total" and it came back 947ng/dl and i initially thought that it's too high for the dose i'm on. however, my free test is 264 (i don't know how, i'm only on test).

947 - 264 = 683... which is on par with my expectations based off previous bloodwork which only reflected "Testosterone" or "testosterone serum".

thoughts?
 
can't find the answer to this anywhere but it would definitely clear a lot of things up.
could it be that bloodwork that says simply "Testosterone" or "Testosterone, serum" is your test level WITHOUT factoring in free test, hence "Testosterone, Total" in other tests?
i'm starting to think this is the case for the reasons below..

for years i've been getting bloodwork done and the results always read "Testosterone" or "Testosterone, serum" without ever checking my free test, so i've been basing my response/expectations for test levels on those numbers.
i recently got bloodwork and this time it says "Testosterone, total" and it came back 947ng/dl and i initially thought that it's too high for the dose i'm on. however, my free test is 264 (i don't know how, i'm only on test).

947 - 264 = 683... which is on par with my expectations based off previous bloodwork which only reflected "Testosterone" or "testosterone serum".

thoughts?
I believe they are the same thing. The “serum” part just means it’s being measured in a sample of your blood and plasma.
 
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