Angiotensin Converting Enzyme (ACE), Serum

What is an Angiotensin Converting Enzyme (ACE) Test?

The Angiotensin Converting Enzyme (ACE) Test is a blood test that measures the level of ACE, an enzyme produced mainly in the lungs and released into the bloodstream. ACE plays a critical role in regulating blood pressure by converting angiotensin I (an inactive molecule) into angiotensin II, a substance that narrows blood vessels and increases blood pressure.

Clinically, this test is primarily used to diagnose and monitor sarcoidosis, a condition in which clusters of inflammatory cells (granulomas) form in various organs, particularly the lungs and lymph nodes. Elevated ACE levels often indicate active disease or ongoing inflammation.

What Does the Angiotensin Converting Enzyme (ACE) Test Measure?

The test measures the concentration of ACE in your blood. This enzyme’s activity reflects several underlying conditions that affect the lungs, liver, and immune system.

The ACE Test helps your doctor to:

• Diagnose sarcoidosis and assess its severity
• Monitor treatment response and disease progression
• Evaluate other conditions that elevate ACE, such as leprosy, Gaucher’s disease, andtuberculosis
• Identify causes of high blood pressure linked to hormonal or vascular factors
• Assess chronic diseases affecting the liver, kidneys, or endocrine system

Angiotensin Converting Enzyme (ACE) Test: Who Needs It and Why It’s Done

What Symptoms May Call for an ACE Test?

Your doctor may recommend this test if you experience symptoms such as:

• Persistent cough or shortness of breath
• Fatigue or unexplained weakness
• Skin lesions or nodules
• Enlarged lymph nodes
• Chest pain or discomfort
• Visual problems (due to inflammation in the eyes)

These are common signs of sarcoidosis, but similar symptoms may also appear in other inflammatory or autoimmune conditions.

Who Should Get an ACE Test?

This test is often recommended for:

• Individuals with suspected sarcoidosis
• Patients with chronic lung diseases or granulomatous disorders
• Those with unexplained high ACE levels detected during routine screening
• Individuals undergoing sarcoidosis treatment monitoring
• People with conditions like Gaucher’s disease, leprosy, tuberculosis, or Hodgkin’s lymphoma
• Patients with chronic liver or kidney disorders

Why is an ACE Test Done?

The test helps detect whether inflammation-related diseases, especially sarcoidosis, are active in the body. High ACE levels indicate active inflammation or tissue damage, while decreasing levels during treatment suggest improvement.

It can also support diagnosis in combination with imaging studies, lung function tests, and biopsies for better accuracy.

Importance of an Angiotensin Converting Enzyme (ACE) Test

The ACE test is an important biochemical marker for sarcoidosis. Measuring ACE levels allows clinicians to track the activity and response to therapy of the disease over time.

While elevated ACE levels are not specific to sarcoidosis alone, they provide valuable information when correlated with imaging (like chest X-rays or CT scans) and clinical findings.
Low ACE levels can also signal chronic liver or kidney issues, malnutrition, or the use of ACE inhibitor medications for blood pressure control.

ACE Test Booking & Reports – Metropolis Healthcare

How to Book the ACE Test and Get Your Reports

1. Simple Online Booking
   Visit the Metropolis Healthcare website or mobile app to book the ACE Test. Choose a convenient time slot for home collection or visit your nearest Metropolis Lab.
2. Home Sample Collection
   A trained phlebotomist collects your blood sample safely following proper hygiene protocols.
3. Sample Tracking
   Track your sample status in real time through the Metropolis Healthcare tracking portal.
4. Advanced Laboratory Testing
   Your sample is processed in NABL & CAP accredited laboratories using Enzymatic methods for high precision.
5. Quick Report Access
   Receive your reports within 4 hours via email, WhatsApp, or directly on the Metropolis Healthcare app or website.

Is Home Sample Collection for ACE Test Available Near You?

Yes, Metropolis Healthcare offers home sample collection for the ACE Test. You can schedule your collection at your preferred time, ensuring convenience and safety.

How Long Does It Take to Get an ACE Test Report?

Reports are typically available within 4 hours of sample collection once the sample reaches the lab.
Note: Reporting time and cost may vary depending on your location.

Where Can I Access ACE Test Results?

You can access your test results:

• Through the Metropolis Healthcare website or mobile app
• Via email or WhatsApp
• By collecting a printed copy from your nearest Metropolis Lab

Interpreting Angiotensin Converting Enzyme (ACE) Test Results

What Your ACE Test Results May Indicate

Understanding Abnormal ACE Test Results

How Should You Prepare for an ACE Test?

To ensure accurate results, follow these steps:

• Fasting: Usually optional, but may be recommended by your doctor.
• Medications: Inform your doctor about all medications, especially ACE inhibitors, as they can suppress enzyme activity.
• Hydration: Drink enough water before the test.
• Avoid heavy meals or alcohol immediately before sample collection.
• Rest well before the blood draw to minimize stress-related variations.

How Is an ACE Test Done? (Step-by-Step Procedure)

• A healthcare professional ties a band around your arm to make a vein visible.
• The skin is cleaned with an antiseptic.
• A sterile needle is used to collect about 3 ml of blood in a gel vacutainer.
• The sample is labelled, stored properly, and sent to the lab for enzymatic analysis.
• The test measures the activity of ACE using biochemical assays.
• Results are compared with reference ranges and your clinical history.

Conditions That May Affect ACE Test Accuracy

Factors that may interfere with results include:

• Use of ACE inhibitor medications (e.g., lisinopril, enalapril)
• Chronic liver or kidney impairment
• Recent infection or inflammation
• Improper sample handling or temperature changes
• Presence of heavy metal ions (zinc displacement) in the blood sample

Diseases That the ACE Test Can Help Detect

This test aids in diagnosing or monitoring:

• Sarcoidosis (primary use)
• Gaucher’s disease
• Leprosy
• Tuberculosis
• Hodgkin’s lymphoma
• Chronic liver and kidney disorders
• Endocrine abnormalities (e.g., hyperthyroidism)