Pulmonary System Function Screening Panel (Serum/Plasma)
This test measures various substances in your blood that can help assess how well your lungs are functioning and whether there may be underlying issues affecting your respiratory system.
["This panel supports early detection of lung health concerns and guides treatment for respiratory conditions."]
Key facts at a glance
- LOINC
- 43454-8
- Short code
- MR Pulm system
- Synonyms
- MR Pulm system
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- mr
- 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 evaluates markers related to lung inflammation, fluid balance, and oxygen utilization. It may include measurements such as electrolytes (e.g., sodium, potassium), proteins (e.g., albumin), and substances that reflect lung perfusion or metabolic activity. Some tests may also assess markers of oxidative stress or cellular damage in the lung tissue.
Common Conditions Evaluated
This panel is often used to investigate conditions like chronic obstructive pulmonary disease (COPD), pulmonary edema, lung infections, or interstitial lung diseases. It can also help monitor patients with known lung diseases or those undergoing treatments that may impact respiratory function.
Sample Collection and Preparation
A blood sample is drawn from a vein, typically in your arm. The blood is processed to separate serum or plasma for testing. This process ensures accurate measurement of the substances being analyzed without contamination.
When to Consider This Test
Your healthcare provider may recommend this test if you have symptoms like shortness of breath, persistent cough, fatigue, or if you have a history of lung disease. It may also be part of routine monitoring for certain medical conditions or before certain treatments that could affect lung function.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal results may indicate imbalances in fluid, electrolytes, or proteins that could signal lung inflammation, infection, or fluid accumulation. Elevated markers might suggest conditions like pulmonary edema, severe infections, or metabolic disturbances affecting lung health. Low levels of certain proteins or electrolytes could also point to underlying systemic issues that may require further investigation.
Short name
Pulmonary Function Biomarkers
Frequently asked questions
Why might my doctor order this test?
What does it mean if my test results are abnormal?
How long will I need to prepare for this 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