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Pulmonary Vascular Resistance and Left Ventricular Systolic/Diastolic Doppler Measurements

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

A Doppler ultrasound evaluation of pulmonary blood flow and left ventricular systolic and diastolic function.

Quick summary

["This test uses ultrasound to assess pulmonary blood-flow resistance and how well the left ventricle pumps and fills."]

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

Key facts at a glance

LOINC
29422-3
Short code
PV-RL Vmax sys/dias DOP
Synonyms
PV-RL Vmax sys/dias DOP
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
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 cardiac Doppler ultrasound evaluation. It measures blood-flow velocity and may be used to estimate pulmonary vascular resistance while also assessing the left ventricle's systolic contraction and diastolic filling.

Why might I need this test?

Your clinician may order it to investigate suspected pulmonary hypertension, heart-valve disease, or impaired left ventricular function. It may also be used to monitor certain forms of heart disease.

How is the test performed?

A technician places an ultrasound probe on your chest and directs sound waves toward the heart. Doppler technology displays the movement of blood through the heart and vessels, and the measurements are reviewed by a clinician.

How do I prepare for the test?

No special preparation is usually required. The test is generally painless and does not use radiation, although you may be asked to lie on your side or hold your breath briefly.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Pulmonary Vascular and Left Ventricular Doppler Evaluation

Frequently asked questions

Is this the same as a complete echocardiogram?
It may be part of an echocardiogram, but it focuses on Doppler measurements related to pulmonary vascular resistance and left ventricular function.
Does the test involve radiation?
No. It uses sound waves to assess blood flow and heart function without radiation exposure.
Can I have this test if I have a heart-valve problem?
Often, yes. Doppler ultrasound is commonly used to evaluate blood-flow patterns and the effects of valve disease. Your clinician will explain any preparation or precautions specific to your condition.
  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