Pulmonary Blood Flow Velocity Waveform Doppler Analysis (Pulmonary Artery Blood Flow Velocity Profile)
This test measures the speed and pattern of blood flow through your pulmonary artery using Doppler ultrasound. It helps assess how well blood flows from your heart to your lungs.
["This test evaluates lung blood flow efficiency, often used to check for heart or lung conditions."]
Key facts at a glance
- LOINC
- 93627-8
- Short code
- Pulm v Blood flow vel.S1 wave DOP.PW
- Synonyms
- Pulm v Blood flow vel.S1 wave DOP.PW
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-doppler-pw
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test if you have symptoms like shortness of breath, fatigue, or signs of heart or lung disease. It can also be part of a routine evaluation for conditions such as pulmonary hypertension or congenital heart defects.
What to Expect Before the Test
No special preparation is needed. You’ll lie on your back on an exam table, and a gel will be applied to your chest. A small device called a transducer will be placed on your chest to send sound waves. You may feel a slight pressure or vibration during the test.
During the Test
The technician moves the transducer around your chest to capture images and measurements of blood flow in your pulmonary artery. The test usually takes about 15–30 minutes. You’ll hear a faint humming or buzzing sound as the transducer moves.
After the Test
You can return to your normal activities immediately. There are no known side effects, but you may experience mild discomfort or bruising at the transducer site.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal blood flow patterns detected during this test can indicate issues like narrowed blood vessels, valve problems, or other heart or lung conditions. For example, high velocities may suggest increased pressure in the pulmonary artery, which could be linked to conditions such as pulmonary hypertension or heart failure.
Short name
Pulmonary Flow Velocity Test
Frequently asked questions
What does the test measure?
How is the test performed?
Can this test be done if I have a pacemaker or other implanted device?
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