Synacthen test

[beaton]

I have a test booked for next week and am wondering about taking meds. on the day. The test is booked for 13.30 on Monday. I take 100 mcg. T4 and 10 mcg. T3 early in the morning followed by 10 mcg. T3 early afternoon,

[shaws Administrator]

Take your medication after your blood tests otherwise it will skew your tests.

[beaton in reply to shaws]

Hi Shaws,kind of you to reply. I was thinking of skipping the meds. am but the letter says to take as usual,but does that apply to thyroid ? this is a "general" letter.

[shaws Administrator]

I am sorry if I misled you, I was referring to a thyroid gland blood test but realise you are referring to a Synacthen test so hopefully someone who has had this can advise.

[beaton in reply to shaws]

Thanks Shaws.x

[headinjuryhypo]

Hi Beaton, I expect you've had your SST by now - I just wanted to alert you to the possibility that the test may give a normal result when you actually have secondary hypoadrenalism. It misses 2 cases in every five. See this thread healthunlocked.com/thyroidu... for more details.