The patient should be fasting (nothing to eat or drink) for 10 to 24 hours before the blood test and should not smoke for 24 hours beforehand.
The catecholamines test can be performed on either blood or urine.
There is no need to fast for a bun and creatinine test.
You do not need to fast for a chickenpox blood test.
There is no need to fast for a bun and creatinine test.
do i need to fast for a ca 125 test
No you do not need to fast.
no u dont need to fast
No, you don't need to fast for the blood test for chickenpox.
For "wbc" or "white blood cell" test, you do NOT need to fast.
no
catecholamine
It may take up to a week for a lab to complete testing of the samples.