Analysis of lab results

[jeff605]

48 Y/O Male caucasion for routine H and P and labs.  Asymptomatic.

Oct. 2, 2007   TSH .003  all other labs normal

Oct. 12, 2007 repeat  TSH .010  T4 Free 0.81   (low normal)  T3 Free 3.1 (normal).

You suggested checking out pituitary, so had the following labs:

Oct. 23 Prolactin 9.9  range 3.7-17.9
            Testosterone 56   (47-244 range) so low normal

Dec. 12 LH 2.74 no normal values given
            FSH 3.94 normal 1.6-9.7
            Testosterone 46 (47-244 range)
            TSH 1.53

So my TSH is back to normal, can we  r/o thyroid problems? (probable subclinical hyperthyroidism)

Do Prolactin, LH (if normal) and FSH r/o pituitary problems?

What is the significance of the low testosterone and what should I do?  Any other thoughts? Do I need treatment if it stays at this number and should I recheck and how long should I wait to recheck.

Thank you

[jeff605]

I weigh 140, 5'8'' so I am thin.

Should I ignore, repeat or treat the testosterone?

Is LH 2.4 normal?



Jeff605

[Mark Lupo, M.D.]

The thyroid looks to have recovered.  With normal prolactin likely not pituitary.  The lowish testosterone is of uncertain signficance - have seen this in patients who are a little overweight, and weight loss improves it.