Chest X-ray with Pneumothorax Detection (Breast Marking)
This test involves a chest X-ray to check for air in the chest cavity (pneumothorax) and includes a marker to identify breast tissue for accurate imaging.
["A chest X-ray helps doctors detect hidden air in the chest and ensures breast coverage for clear imaging."]
Key facts at a glance
- LOINC
- 39342-1
- Short code
- Deprecated Chest XR PA+Obl W nipple mark
- Synonyms
- Deprecated Chest XR PA+Obl W nipple mark
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 3.5
- Ref high
- 5
- Critical range
- 2.5 N/A – 6.5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr
- CPT
- 84132
- SNOMED
- 110742001
- 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 a Chest X-Ray for Pneumothorax Detection?
A chest X-ray is a type of imaging test that uses low-dose radiation to create pictures of the chest, including the lungs, heart, and bones. This specific test includes a marker to help identify breast tissue, ensuring the X-ray captures the correct areas without overlap. It’s used to detect if there’s air in the chest cavity (pneumothorax), which can occur due to injuries, medical conditions, or complications from procedures.
Why Might You Need This Test?
You may need this test if you have symptoms like sudden chest pain, shortness of breath, or if a doctor suspects a pneumothorax after a procedure, injury, or other medical condition. It’s also used during certain surgeries or medical evaluations to monitor air leaks or ensure proper imaging alignment.
How Is the Test Performed?
You’ll lie on an X-ray table while a technician positions you and places a marker (often a small radiopaque line) to outline breast tissue. The technician will take X-ray images from different angles to capture the chest area clearly. You may need to hold your breath briefly during the exposure.
What Happens After the Test?
After the X-ray, you can usually return to your normal activities immediately. The images will be reviewed by a radiologist, who will look for signs of pneumothorax or other abnormalities. You’ll receive results from your healthcare provider, who will explain any findings or next steps.
Reference range
Adult: 3.5-5.0 mmol/LN/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.
Detecting a pneumothorax early is critical because untreated air in the chest can cause serious complications, such as difficulty breathing or even collapse of the lung. This test helps doctors diagnose the condition quickly, allowing for prompt treatment, which may include draining the air or monitoring closely. Proper imaging also ensures accurate assessment of breast coverage for further medical decisions.
Frequently asked questions
Will I Feel Any Discomfort?
How Long Will It Take to Get Results?
Can I Eat or Drink Before 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