Pulmonary Vascular Resistance and Left Ventricular Systolic/Diastolic Doppler Study
A Doppler echocardiography study that assesses pulmonary vascular resistance and left ventricular blood flow and function during contraction and relaxation.
["This heart ultrasound helps evaluate pulmonary circulation and how well the left ventricle pumps and relaxes."]
Key facts at a glance
- LOINC
- 29456-1
- Short code
- PV-RL Vmax sys/dias DOP.der
- Synonyms
- PV-RL Vmax sys/dias DOP.der
- 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-derived
- 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 a Doppler echocardiography examination that uses ultrasound to measure the speed and direction of blood flow. It provides information about pulmonary vascular resistance and left ventricular function during systole, when the heart contracts, and diastole, when it relaxes.
Why might I need this test?
Your clinician may order this study to investigate suspected pulmonary hypertension, heart valve disease, or impaired left ventricular function. It may also be used to monitor known heart or lung conditions and assess symptoms such as shortness of breath, fatigue, chest discomfort, or swelling.
How is the test performed?
A technician applies gel to your chest and moves an ultrasound probe over several areas while images and Doppler measurements are recorded. You may be asked to lie on your side, hold your breath briefly, or breathe in a specific way. The examination does not use radiation.
How do I prepare for the test?
No fasting or medication changes are usually needed unless your clinician gives you different instructions. Wear comfortable clothing that allows access to your chest, and tell the technician if you have recently had cardiac imaging or are experiencing an acute illness.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated pulmonary vascular resistance may occur with pulmonary hypertension, chronic lung disease, or left-sided heart disease. Abnormal left ventricular Doppler measurements can indicate impaired contraction, impaired relaxation, or altered blood flow. Results should be interpreted with the rest of your echocardiogram, medical history, symptoms, and other cardiac tests.
Short name
PVR and Left Ventricular Doppler Study
Frequently asked questions
Is this the same as a standard echocardiogram?
Does the test involve radiation or needles?
Can I have this test if I am pregnant?
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