: Brain Metabolic Panel (Qualitative, Plasma)
: This test looks for abnormal patterns of metabolic substances in a plasma sample that may be associated with brain or neurological conditions. It is a screening-type test, so results are typically interpreted alongside a person's symptoms and other clinical findings.
[": A brain metabolic screen checks a blood sample for metabolic patterns that may relate to neurological health, but results must be interpreted by a clinician in context."]
Key facts at a glance
- LOINC
- 81578-7
- Short code
- PT Brain metabolic W RNC IV
- Synonyms
- PT Brain metabolic W RNC IV
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- pt
- CPT
- 85610
- SNOMED
- 396252006
- 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
: What This Test Measures
: The test examines a plasma sample for a qualitative (yes/no or pattern-based) assessment of metabolic substances that can reflect brain and nervous system function. Rather than reporting a single numeric value, it is designed to flag whether an abnormal metabolic pattern is present.
: Why It May Be Ordered
: A healthcare provider may order this kind of screening when a person has neurological symptoms that could have a metabolic cause, or when there is a known or suspected inborn or acquired metabolic disorder affecting the brain. It is generally used as part of a broader evaluation rather than on its own.
: How the Sample Is Collected
: The test is performed on a plasma sample, which is obtained by drawing blood, usually from a vein in the arm. Standard preparation instructions from your provider or laboratory should be followed, as some metabolic tests require fasting or timing considerations.
: Understanding the Results
: Results are usually reported as a qualitative finding or pattern rather than a specific number. A "positive" or abnormal screen does not by itself diagnose a condition; it typically prompts additional testing and clinical correlation. Your provider will explain what the result means for your specific situation.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
: Brain Metabolic Screen
Frequently asked questions
: Does this test diagnose a brain disorder on its own?
: Do I need to fast before this test?
: What happens if my result is abnormal?
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