Right Ventricular Cardiac Index by Angiography with Blood Pressure Measurement
This test estimates how effectively the right ventricle pumps relative to body size using angiography and related blood-pressure measurements. It provides information about right-heart function and blood-flow mechanics.
["The right ventricular cardiac index helps assess how well the right side of the heart pumps and is interpreted together with the rest of your cardiovascular evaluation."]
Key facts at a glance
- LOINC
- 8756-9
- Short code
- RV Cardiac index Angio BP
- Synonyms
- RV Cardiac index Angio BP
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- angiography-biplane
- 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 the Test Measures
The right ventricular cardiac index is a calculated measure based on the amount of blood pumped by the right ventricle and the patient's body size. Angiography and hemodynamic measurements may be used to obtain the information needed for this calculation.
Why the Test May Be Ordered
This test may be ordered when symptoms, physical findings, or other studies suggest impaired right-heart function or excessive pressure on the right side of the heart. It may also help evaluate blood-flow abnormalities or monitor certain cardiovascular conditions.
How the Test Is Performed
If the test is performed during cardiac angiography, a catheter and contrast material may be used to examine the heart's chambers and blood vessels. Follow all preparation instructions, and tell the care team about contrast allergy, kidney disease, pregnancy, bleeding problems, and medications that may affect blood pressure or clotting.
How Results Are Interpreted
A higher or lower index can occur with changes in right-ventricular pumping, heart pressures, blood volume, or other hemodynamic conditions. The result is not a diagnosis by itself and should be reviewed with blood-pressure readings, symptoms, imaging, and other cardiac tests.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
The right ventricular cardiac index is clinically useful because it evaluates right-heart performance while accounting for differences in body size. When interpreted with angiography, blood-pressure data, and the overall clinical picture, it can help identify and guide evaluation of right-sided heart or circulatory abnormalities.
Short name
RV Cardiac Index by Angiography
Frequently asked questions
What does angiography add to the cardiac index calculation?
Does an abnormal right ventricular cardiac index establish a specific diagnosis?
What should I ask before undergoing this test?
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