Test Background Calcitonin is the principal tumour marker of medullary thyroid carcinoma (MTC). It is measured in diagnosis and monitoring of MTC and occasionally for diagnosis of other neuroendocrine tumours.
Clinical Indications Suspected MTC Monitoring of known MTC Monitoring of known MEN patients
Reference Range Male <11.8 ng/L
Females <4.8 ng/L
Sample Required Serum (red top) or SST (gold top)
Fasting sample recommended.
Collect into tube on ice, separate in a chilled centrifuge and freeze immediately.
Sample Volume 2ml (minimum 400µl serum)
Transport/Storage Send to lab frozen.
Turnaround Time 10 days
Notes Grossly haemolysed samples are unsuitable for this assay.