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Laboratory Medicine

Test catalogue

Adrenocorticotropin Hormone (ACTH)

Test Name

Adrenocorticotropin Hormone (ACTH)

Lavender Tube Specimen Type / Requirements

Container Type = 2 Lavender (EDTA)

Minimum Volume = 2 mL plasma

Tubes must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Fasting Specimen Preferred. Collect in prechilled 2 lavender tubes (EDTA). Write your initials, date and time of collection on the collection label.

Special Instructions: Centrifuge in a refrigerated centrifuge. Separate plasma from cells ASAP and freeze 2 aliquots. Requires simultaneous cortisol for interpretation

Rejection Criteria: Thawed samples. Serum and heparinized plasma samples are unacceptable.

Stability: Sample stable refrigerated for 4 hours and frozen for 31 days.


Transport on ice to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

15 Days (Batched

Test Utilization

Reference Value

Normal < 18 pmol/L

Test Code



Sandwich Immunoassay

Testing Location


Other Information