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Right Ventricular Pre-Ejection Time (RVET) via Electrocardiogram (ECG)

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

This test measures the time it takes for the right ventricle of your heart to eject blood during each heartbeat, using an ECG. It helps assess heart function, particularly the pressure in the right ventricle.

Quick summary

["RVET helps evaluate right ventricular pressure and potential heart issues."]

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

Key facts at a glance

LOINC
80090-4
Short code
RV Pre eject time DOP+ECG
Synonyms
RV Pre eject time DOP+ECG
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
us-doppler-ecg
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 RVET?

Right ventricular pre-ejection time (RVET) is a measure derived from an ECG that reflects how efficiently your heart pumps blood from the right ventricle into the pulmonary artery. It’s calculated from the start of ventricular depolarization (Q wave) to the point when the ventricle fully ejects blood (end-systolic phase).

Why Is This Test Done?

Doctors may order RVET if you have symptoms like shortness of breath, fatigue, or signs of heart disease (e.g., high blood pressure in the lungs, called pulmonary hypertension). It can help diagnose or monitor conditions affecting the right ventricle, such as congenital heart defects or heart valve disorders.

How Is RVET Measured?

Your ECG is recorded while you lie still. A technician analyzes the waveform to determine the RVET interval. This test is quick, painless, and done in a doctor’s office or clinic.

What Does RVET Tell You?

A longer RVET may suggest increased resistance in the pulmonary artery, while a shorter RVET could indicate abnormal heart rhythms or structural issues. However, interpretation depends on your overall heart health and clinical context.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

RVET (ECG)

Frequently asked questions

How often is RVET checked?
RVET is typically not a routine test but may be included in specialized heart evaluations, especially if you have symptoms or risk factors for right ventricular strain. Your doctor will determine if monitoring is needed.
What are normal values for RVET?
There are no universally standardized reference ranges for RVET alone. It’s measured relative to your heart’s size, rhythm, and overall health. Your doctor will compare it to your specific ECG and clinical picture.
Can RVET be affected by medications?
Yes, certain medications (e.g., beta-blockers, calcium channel blockers) can alter heart function and potentially impact RVET measurements. Always inform your healthcare provider about all medications you’re taking.
  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