Phosphatidylcholine (Phospholipid) Profile in Serum/Plasma
This test measures levels of phosphatidylcholine, a key phospholipid found in cell membranes, often analyzed as part of lipid metabolism studies.
["Understanding your phospholipid levels can help assess cell health and certain metabolic functions."]
Key facts at a glance
- LOINC
- 35220-3
- Short code
- Phosphate Dial fld-msCnc
- Synonyms
- Phosphate Dial fld-msCnc
- Category
- electrolyte
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 2.5
- Ref high
- 4.5
- Critical range
- 1 N/A – —
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 84100
- 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 this test if you have symptoms or conditions related to lipid disorders, membrane integrity, or metabolic abnormalities. It could also be part of a broader evaluation for genetic testing or research studies involving phospholipid metabolism.
What to Expect Before the Test
No special preparation is typically needed. You may be asked to fast for 8–12 hours before the test if it involves blood collection, but this depends on your specific order. Always follow your provider’s instructions.
What the Test Involves
A blood sample is drawn from a vein in your arm. The sample is then processed to measure phosphatidylcholine concentration using a specialized laboratory technique, often high-performance liquid chromatography (HPLC).
What the Results Mean
Results are usually reported as a mass concentration (e.g., in milligrams per deciliter). While specific reference ranges vary by lab, abnormal levels may indicate conditions affecting phospholipid metabolism, such as certain genetic disorders or metabolic syndromes.
Reference range
Adult: 2.5-4.5 mg/dLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Phosphatidylcholine is essential for cell membrane structure and function. Abnormal levels may signal underlying metabolic or genetic conditions, such as disorders of fatty acid metabolism or inherited lipid storage diseases. This test may also be used in research or specialized diagnostic contexts.
Short name
Phospholipid Test
Frequently asked questions
What is the purpose of this test?
Results are typically available within 1–3 business days, depending on lab processing times. Your healthcare provider will contact you once they are ready.
The blood draw may cause mild discomfort or soreness at the injection site, but most people tolerate it well. A healthcare professional will explain the process and use a needle designed to minimize pain.
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 17, 2026. · Read our editorial policy