• Specialty
  • Cardiology
  • Dentistry
  • Dermatology
  • General Medicine
  • GI/GU
  • Hematology
  • Immunology
  • Lab Medicine & Pathology
  • Neuro-Psych
  • OB-Gyn
  • Oncology
  • Ophthalmology
  • Orthopaedic
  • Otolaryngology - ENT
  • Radiology
  • Surgery

• Cardiology
  • Arteries
  • Cardio Catheters
  • Cardio Terms
  • Gallops
  • Hypertension
  • Leads (EKG)
  • Murmurs
  • Rubs
  • Scans - Cardio
  • Stress - Cardio
  • Tests - Cardio
  • Veins
  • Sample Reports - Cardiovascular / Pulmonary

• Cardio Terms

- R -

• RA

Right atrium.



• Radionuclide test

A diagnostic test in which a radioactive substance is injected into the bloodstream and the emitted radioactivity is detected by a scanner; used to visualize the heart and vessels.



• RBBB

Right bundle branch block.



• RBC

Red blood cell; erythrocyte.



• RCA

Right coronary artery.



• Red Blood Cell

Saucer-shaped cell in blood plasma that carries oxygen.



• Renal

Referring to the kidney(s).



• Renal failure

Failure of the kidney to cleanse the blood causing the build up of waste products in the blood.



• Resection

Partial or complete surgical removal of a significant part of an organ, tissue, or structure.



• Respiration

The chemical processes that occur at the tissue cellular level converting oxygen and water to heat, atp and carbon dioxide.



• Respiratory acidosis

An abnormal physiological process in which there is a primary reduction in alveolar ventilation relative to the rate of co2 production. Reflected by a high pco2 and low ph. (pco2 greater than 45 mmhg) treat by increasing ventilation.



• Respiratory alkalosis

An abnormal pyhsiological process in which there is a primary increase in the rate of alveolar ventilation relative to the rate of co2 production. Reflected by a low pco2 and high ph. (pco2 less than 35 mmhg) treat by decreasing ventilation.



• Respiratory Diseases

Diseases that affect the lungs. The lungs are the organs responsible for breathing. Examples of respiratory diseases are infections (pneumonia), tuberculosis, damage to the lungs from cigarette smoking, and lung cancer. Many respiratory diseases are treated with medical therapy, but some may require surgery.



• Re-stenosis

The recurrence of a stenosis.



• Retrograde

Against the normal direction of flow.



• Revascularization

Restoration, to the extent possible, of normal blood flow to the myocardium by surgical or percutaneous means or with removal or reduction of an obstruction as occurs when cabg or ptca is performed.



• RHD

Rheumatic heart disease.



• Right Atrium

The upper right cardiac chamber that receives blood from the venae cavae and delivers blood to the right ventricle.



• Right Ventricle

The lower chamber of the right side of the heart, which pumps venous bloood through the pulmonary trunk and arteries to the capillaries of the lung.



• RIMA

Right internal mammary artery.



• RISC

Research group on instability in coronary artery disease.



• Risk

High, intermediate, and low risk in this guideline refer to the probability of future adverse cardiac events, particularly death or mi.



• RITA

Randomized intervention treatment of angina.



• Ross Procedure

A type of specialized aortic valve surgery where the patient's diseased aortic valve is replaced with his or her own pulmonary valve.



• RRR

Regular rate and rhythm.



• RV

Right ventricle.



• RVH

Right ventricular hypertrophy.