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Bronchial Wash Cytology (Manual Examination)

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

This test examines cells collected from your airway after washing the bronchi, often done to check for infections, inflammation, or abnormal cells like cancer.

Quick summary

["It helps diagnose respiratory conditions by analyzing cells from your lungs."]

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

Key facts at a glance

LOINC
51927-2
Short code
Other cells NFr Bronch Manual
Synonyms
Other cells NFr Bronch Manual
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
manual-count
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 Is This Test Done?

Your doctor may order this test if you have symptoms like persistent cough, wheezing, or unexplained lung problems. It can also be used to monitor conditions like lung cancer, infections, or inflammatory diseases.

What to Expect During the Procedure

You’ll likely receive a local anesthetic to numb your throat. A thin tube is inserted through your nose or mouth to collect fluid from your airways. The collected sample is then examined under a microscope for cells.

Preparation and Care

No special preparation is needed, but inform your doctor about any medications or allergies. Avoid smoking or inhalers for a few hours before the procedure if instructed.

What the Results Mean

Results show the types and numbers of cells found, such as white blood cells (indicating infection), red blood cells (possible bleeding), or abnormal cells (like cancerous ones). Your doctor will interpret these findings in the context of your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: This test is critical for identifying infections (e.g., pneumonia, tuberculosis), detecting lung cancer or other malignancies, and diagnosing conditions like chronic bronchitis or asthma. Abnormal cell patterns may signal underlying diseases requiring further medical evaluation.

Short name

Manual Bronchial Wash Cells

Frequently asked questions

What does a positive or abnormal result mean?
An abnormal result may indicate an infection, inflammation, or the presence of abnormal cells (e.g., cancer). Your doctor will discuss these findings with you and determine the next steps, such as additional tests or treatments.
How long does it take to get results?
Results are typically available within a few days to a week, depending on lab processing times. Your doctor will contact you once they have the findings.
Can I eat or drink before this test?
You can usually eat and drink normally unless your doctor specifies otherwise. Follow any specific instructions they provide for your safety and accuracy of 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