Bronchial Cytology (Cellular Analysis of Bronchial Secretions)
This test examines cells collected from your airways to check for abnormalities, such as inflammation, infection, or early signs of lung diseases like cancer.
["A simple test to help diagnose lung conditions by analyzing cells from your respiratory tract."]
Key facts at a glance
- LOINC
- 42210-5
- Short code
- Cyto Bronch
- Synonyms
- Cyto Bronch
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- cyto-stain
- 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 Is Bronchial Cytology Used For?
Bronchial cytology can help identify issues like chronic bronchitis, lung infections (such as tuberculosis or fungal infections), or early-stage lung cancer. It may also detect conditions like asthma or other inflammatory lung diseases by examining cells collected through procedures like a bronchoscopy.
How Is This Test Performed?
The test involves inserting a thin tube (bronchoscope) down your throat into your airways to collect cells from the bronchial lining. A small amount of fluid or cells is then sent to the lab for microscopic analysis.
Preparation and Procedure Details
No special preparation is usually needed, but you may be asked to avoid certain medications or foods for a short time before the procedure. You’ll likely be given a local anesthetic to numb your throat. The test itself may cause mild discomfort but is generally quick.
What Are Common Findings?
Findings can include normal cells, signs of infection (such as white blood cells), inflammatory cells (like neutrophils), or abnormal cells that may suggest malignancy. The results help guide further testing or treatment plans.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
This test plays a critical role in diagnosing lung diseases by providing direct evidence of cellular changes in the airways. It can confirm infections, monitor chronic conditions, or detect early cancer, helping doctors tailor treatment more effectively.
If abnormal cells are found, your doctor may recommend additional tests, such as a biopsy or further imaging, to determine the exact cause. Treatment plans will then be adjusted based on the findings, often involving medications, lifestyle changes, or monitoring.
Results are typically available within a few days to a couple of weeks, depending on the lab’s processing time. Your healthcare provider will discuss the results with you during a follow-up visit.
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