What's best time for blood test? I posted recently my blood test which showed b12 of 149. Doctor is going to repeat test and refer to endocrinologist if it is still low. My blood test is booked for 12.20 is there an optimum time for bloods?
What's best time for blood test?: What's best... - Thyroid UK
What's best time for blood test?
Written by
Sugaru
To view profiles and participate in discussions please or .
Read more about...
4 Replies
•
Sugaru,
Thyroid blood tests should be done early in the morning when TSH is highest and you should fast (water only) as TSH drops after eating and drinking.
I don't think it matters what time blood is drawn for B12 and other tests.
shawsAdministrator
If she is also taking your thyroid hormone, you should also allow 24 hours approx between your last dose of levo and the test and take it afterwards.
shawsAdministrator
This is a diurnal map of the TSH just for info:
Not what you're looking for?
You may also like...
Best time of day for blood test
Hiya, does it make a difference in terms of accuracy what time of day I test? I have a Thriva blood...
Time for blood test for over active?
I know the best time for my blood tests is early on before food (hypo), but a friend has a test...
Best time for blood tests?
Last time i had my bloods tested for a possible thyroid issue, it was triggered by sudden weight...
Blood test when best
Im due to have a blood test this week. My last dose of thyroxine was Saturday 50mcg (Monday to...
Best Private blood test
Hello All,
I am a newbie and this is my first post, so I am hoping not to break any rules!
I am a...
Blood test for thyroid
GOING FOR GRAVES DISEASE BLOOD TEST
Private blood test 
Blood test
Thyroid Blood Test
