Serum/plasma concentration of angiotensin-converting enzyme (ACE)
This test measures the level of angiotensin-converting enzyme (ACE) in your blood, which helps assess conditions like sarcoidosis, certain lung diseases, or exposure to certain medications.
["ACE levels can indicate underlying health conditions or reactions to treatments."]
Key facts at a glance
- LOINC
- 73001-0
- Short code
- Lisinopril (neut) IgM SerPl Ql FC
- Synonyms
- Lisinopril (neut) IgM SerPl Ql FC
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- flow-cytometry
- CPT
- 82784
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend an ACE test if you have symptoms like chronic cough, shortness of breath, or unexplained inflammation in organs such as the lungs or kidneys. It may also be used to monitor conditions like sarcoidosis or to check for side effects of certain medications, such as certain cancer treatments or organ transplant drugs.
What to Expect Before the Test
No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if your blood is drawn early in the morning. Bring any medications you’re currently taking to your appointment.
How the Test Is Performed
A healthcare professional will draw blood from a vein in your arm using a needle. You may feel a small pinch, but the procedure is quick. The blood sample is then sent to a lab for analysis.
What the Results Mean
Results are not typically provided in absolute numbers for this test, as reference ranges can vary by lab and condition. Your provider will interpret the results in relation to your symptoms, medical history, and other test results.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated ACE levels may suggest conditions like sarcoidosis, certain lung diseases (e.g., lymphangioleiomyomatosis), or exposure to ACE-inhibiting medications. Lower levels may be seen in some genetic conditions or with certain medications. Always discuss results with your healthcare provider for personalized interpretation.
Short name
ACE Level
Frequently asked questions
What does an ACE test measure?
How long does it take to get ACE test results?
Can I eat or drink before an ACE blood test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy