Pulmonary Valve Regurgitation Velocity, Early Diastolic — Doppler Waveform
An echocardiographic Doppler measurement of blood-flow speed through the pulmonary valve during early diastole, used to assess pulmonary valve regurgitation.
["This Doppler measurement helps assess backward blood flow through the pulmonary valve and is interpreted together with the rest of the echocardiogram."]
Key facts at a glance
- LOINC
- 93625-2
- Short code
- Pulm valve Regurg vel.early dia DOP.PW
- Synonyms
- Pulm valve Regurg vel.early dia DOP.PW
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-doppler-pw
- 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 this test?
This is an ultrasound measurement of the speed of backward blood flow through the pulmonary valve during the early part of each heartbeat. It is commonly obtained as part of a transthoracic echocardiogram using Doppler technology.
Why might I need this test?
The measurement may be used to evaluate a heart murmur, suspected pulmonary valve leakage, or structural heart disease. It can also provide information about pressure and flow within the heart and nearby blood vessels.
How is the test performed?
A technician places an ultrasound probe on your chest or abdomen and records moving images of the heart. Doppler ultrasound measures the direction and speed of blood flow, including the early diastolic regurgitant flow across the pulmonary valve.
How do I prepare for the test?
No fasting or medication changes are usually required for a standard transthoracic echocardiogram. Wear comfortable clothing and tell the care team if you have mobility limitations, chest discomfort, or a history of heart or lung disease.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Detectable backward flow can occur with pulmonary valve regurgitation, and greater regurgitant velocities may suggest more significant valve dysfunction. The findings may also be influenced by elevated pulmonary artery pressure or other heart conditions. This measurement should be interpreted with valve anatomy, chamber size, symptoms, and the complete echocardiogram rather than by itself.
Short name
Early diastolic pulmonary valve regurgitation velocity
Frequently asked questions
Does this test require radiation or a blood sample?
What does a higher velocity mean?
Is pulmonary valve regurgitation always serious?
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy