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