(Τ3, Τ4, TSH, FT3, FT4, ANTI–TG, ANTI–TPO)

Blood sampling is done before taking medication . Morning blood sampling is required. 

(TG)

Biopsy, surgery, scintigraphy, and radioidine treatment should not be performed for at least two weeks prior to administration.    

(CT)

An eight-hour fast is required. Blood sampling should be done in the morning.

An eight-hour fast is required. Blood sampling should be done in the morning.

(GH)

It requires an eight-hour fast and complete immobility for 30 minutes to avoid stress.

(STANDING AND UPPER)

It is forbidden to take diuretics, antihypertensives, cyclic progesterone, estrogens, steroids, caffeine for 24 hours before blood sampling . 

(5-OH ΤΡΥΠΤΑΜΙΝΗ)

It is forbidden to take drugs that inhibit monoamine oxidation for 3 days before blood sampling . Also avoid tomatoes, bananas, plums, eggplants, chestnuts.

A twelve-hour fast is required.

It is forbidden to take diuretics, antihypertensives, cyclic progesterone, estrogens for 2-5 weeks before blood sampling  . A normal sodium diet (100 – 200 mmol / 24h) should be followed for 3 weeks.

(D4Α)

Morning intake is required due to daily level fluctuations. It is good to do it in the first 5 or the last 15 days of the cycle.

The patient is required to be fasting and not to have smoked  before the blood draw  for at least  4 hours . It is forbidden for  6 days  before the blood sampling the diet with  nuts, bananas, coffee, tea, vanilla, aromatic apples . It is forbidden to take drugs such as methyldopa, methenamine, hydralazine, ampicillin, sulfonamides for 3 days before blood sampling .