Test Directory

Angiotensin Converting Enzyme, Serum

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Updated Test Information:

Test Description
Angiotensin Converting Enzyme, Serum
Synonym(s)

Angiotensin-1-Converting Enzyme, Kinase II, Peptidylpeptide Hydrolase, SACE (Serum Angiotensin Converting Enzyme), Sarcoidosis, Serum Angiotensin Converting Enzyme, ACE (Angiotensin Converting Enzyme)

Test ID
ACE
General Information

Useful for evaluation of patients with suspected sarcoidosis

Specimen Type

Serum

Specimen Requirements

  • Preferred: Serum Gel

  • Acceptable: Red Top

Stability

  • Refrigerated (preferred):7 days

  • Frozen: 180 days

  • Ambient: 24 hours

Unacceptable Specimen Conditions

  • Gross hemolysis

  • Gross lipemia

  • Gross icterus

Limitations

Spinal fluid angiotensin converting enzyme (ACE) activity to aid the diagnosis of neurosarcoidosis has been reported; however, there is insufficient evidence to support ACE being used for this purpose.

Methodology

Spectrophotometry(SP)

Estimated TAT

1-3 days

Testing Schedule

Monday-Saturday

CPT Code(s)

82164

Additional Information
Minimum Sample Volume

0.5 mL

Reference Range

  • ≥ 18 years: 16-85 U/L

  • 0 - 17 years: ACE activity may be 20-50% higher in healthy children compared to healthy adults (16-85 U/L)

Performing Lab

Mayo

LOINC Code(s)

2742-5