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Serum Lipase (Macroform)

Published: August 9, 2026Updated: August 16, 2026

This test measures the activity of lipase, an enzyme involved in breaking down fats. The macroform version detects lipase in a broader, less specific way compared to standard assays, often used when other methods are inconclusive.

Quick summary

["Assists in diagnosing conditions affecting fat digestion or pancreatic health."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
100743-4
Short code
Lipase Macro SerPl Ql
Synonyms
Lipase Macro SerPl Ql
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Critical range
— – 1000 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 doctor may recommend this test if you have symptoms like abdominal pain, nausea, vomiting, or unexplained weight loss. It could also be used to investigate suspected pancreatitis, gallbladder disease, or other gastrointestinal issues where fat malabsorption is suspected.

What to Expect Before the Test

No special preparation is typically needed, but you may be asked to fast for 8–12 hours before the draw if your blood is collected in the morning. Avoid heavy meals or alcohol before testing to ensure accurate results.

How the Test Works

Blood is drawn from a vein in your arm and sent to a lab. The macroform lipase test may use a different method than standard assays, sometimes involving a qualitative or semi-quantitative approach to detect enzyme activity in serum.

Possible Results and Interpretation

Results may be qualitative (e.g., positive/negative) or semi-quantitative, depending on the lab’s method. Elevated levels could suggest inflammation, infection, or pancreatic issues, while normal results may rule out acute pancreatitis or other conditions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Macroform Serum Lipase

Frequently asked questions

What elevated or abnormal results might mean?
Elevated macroform lipase levels may indicate acute pancreatitis, biliary tract disease, or other conditions causing pancreatic inflammation or fat malabsorption. However, results should be interpreted alongside clinical symptoms and other diagnostic findings.
Could this test be affected by medications?
Some medications (e.g., certain antibiotics, anti-inflammatory drugs) may influence test results, but this is less common for macroform lipase. Always inform your doctor about all medications you’re taking.
Is fasting required for this test?
Fasting may not always be required, but your doctor will specify. If fasting is advised, follow instructions carefully to avoid interfering with results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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