T4, FREE T4 and TSH analysis
The diagnosis of hypothyroidism is based on the determination of haematological and biochemical disorders (anaemia, hypercholesterolaemia) and on the levels of two hormones: T4 (total or free) and TSH
Patients suffering from hyperadrenocorticism or Cushing's syndrome present high seric concentrations of cortisol.
The diagnosis can be carried out using 2 types of tests:
|ACTH STIMULATION TEST||SUPRESSION TEST WITH DEXAMETHASONE|
|This consists of determining cortisol after 1-1:30 hrs of ACTH administration.||This consists of determining seric cortisol 4 and 8 hours after low-dosage dexamethasone injection.