ACE (serum)


Alternative names, keywords

Angiotensin-1 converting enzyme, serum ACE, SACE

Samples required

Clotted blood (gold cap, 5 mL tube). Smaller tubes are available for paediatric samples.

Observe correct sample draw order to avoid EDTA contamination e.g. from FBC tubes. Information on draw order is available here.

Test indications

Increased in (often clinically-evident) sarcoidosis, other lung and connective tissue diseases.

Factors affecting test performance/ results

ACE inhibitors will cause low results.

EDTA will cause falsely low results - avoid contamination of serum samples.

Results should always be assessed in conjunction with the patient’s medical history, clinical examination and other findings.

Reference range

8 - 52 U/L
Source: ACE Kit Insert Trinity Biotech 305-10

Turnaround time

One working day


Biochemistry (Automation)