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What does RA stand for?

RA stands for Right Atrium (heart chamber)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 122 other meanings of RA in our Acronym Attic

Samples in periodicals archive:

The right heart is comprised of the right atrium that receives the oxygen poor blood that has circulated throughout the body and is returning to the heart via the venae cavae.
A case report by Chun and Godfrey showed right atrium dilation with diffuse atrial hemorrhage, interstitial edema, and vascular congestion without surrounding myocardial fibers and conduction system involvement in a 19-year-old soldier who died from epidemic (Korean) hemorrhagic fever, sinus tachycardia, paroxysmal supraventricular tachycardia, and congestive heart failure (8).