Ra

• RA - InDepth (see: Rheumatoid arthritis - InDepth)
  (In-Depth)
• RACAB (see: Heart bypass surgery - minimally invasive)
  (Surgery)
• RACAB - discharge (see: Heart bypass surgery - minimally invasive - discharge)
  (Discharge)
• Radiofrequency catheter ablation (see: Cardiac ablation procedures )
  (Surgery)
• Radiofrequency vein ablation (see: Varicose vein - noninvasive treatment)
  (Surgery)
• Radiography (see: X-ray)
  (Medical Test)
• Radionuclide renal perfusion scan (see: Renal perfusion scintiscan)
  (Medical Test)
• Radionuclide ventriculography (RNV) (see: Nuclear ventriculography)
  (Medical Test)
• Random plasma renin (see: Renin blood test)
  (Medical Test)
• Rapid heart rate - PSVT (see: Paroxysmal supraventricular tachycardia (PSVT))
  (Condition)
• Rapid heartbeat - WPW (see: Wolff-Parkinson-White syndrome (WPW))
  (Condition)
• Rapid shallow breathing
  (Symptoms)
• Raynaud disease (see: Raynaud phenomenon)
  (Condition)
• Raynaud phenomenon
  (Condition)
• Raynaud's disease (see: Raynaud phenomenon)
  (Condition)
• Raynaud's phenomenon (see: Raynaud phenomenon)
  (Condition)
• Raynaud's phenomenon - scleroderma - InDepth (see: Scleroderma - InDepth)
  (In-Depth)

Rb

• RBC count
  (Medical Test)
• RBC nuclear scan
  (Medical Test)

Re

• Reactive seizures (see: Seizures)
  (Symptoms)
• Recognizing medical emergencies
  (Special Topic)
• Recovering after stroke
  (Special Topic)
• Recovery from stroke (see: Recovering after stroke)
  (Special Topic)
• Rectal bleeding - hemorrhoids (see: Hemorrhoids)
  (Condition)
• Rectal bleeding - sigmoidoscopy (see: Sigmoidoscopy)
  (Medical Test)
• Rectal cancer (see: Colorectal cancer)
  (Condition)
• Rectal lump (see: Hemorrhoids)
  (Condition)
• Rectal sigmoidoscopy (see: Sigmoidoscopy)
  (Medical Test)
• Recurrent leg pain and cramping (see: Peripheral artery disease - legs)
  (Condition)
• Recurrent leg pain and cramping - InDepth (see: Peripheral artery disease and intermittent claudication - InDepth)
  (In-Depth)
• Red birthmarks
  (Condition)
• Red blood cell count (see: RBC count)
  (Medical Test)
• Regadenoson stress test (see: Nuclear stress test)
  (Medical Test)
• Regional flaps - self-care (see: Skin flaps and grafts - self-care)
  (Self-Care)
• Rehabilitation (see: Physical medicine and rehabilitation)
  (Special Topic)
• Renal angiogram (see: Renal arteriography)
  (Medical Test)
• Renal angiography (see: Renal arteriography)
  (Medical Test)
• Renal arteriography
  (Medical Test)
• Renal artery embolism (see: Acute arterial occlusion - kidney)
  (Condition)
• Renal artery occlusion (see: Renovascular hypertension)
  (Condition)
• Renal artery stenosis (see: Renovascular hypertension)
  (Condition)
• Renal artery stenosis - arteriography (see: Renal arteriography)
  (Medical Test)
• Renal calculi - calcium in your urine (see: Calcium - urine)
  (Medical Test)
• Renal disease - atheroembolic (see: Atheroembolic renal disease)
  (Condition)
• Renal disease - BUN (see: BUN - blood test)
  (Medical Test)
• Renal failure - BUN (see: BUN - blood test)
  (Medical Test)
• Renal failure - end stage (see: End-stage kidney disease)
  (Condition)
• Renal function - creatinine (see: Creatinine blood test)
  (Medical Test)
• Renal function - creatinine clearance (see: Creatinine clearance test)
  (Medical Test)
• Renal hypertension (see: Renovascular hypertension)
  (Condition)
• Renal insufficiency - BUN (see: BUN - blood test)
  (Medical Test)
• Renal perfusion scintigraphy (see: Renal perfusion scintiscan)
  (Medical Test)
• Renal perfusion scintiscan
  (Medical Test)
• Renal scan
  (Medical Test)
• Renal vein thrombosis
  (Condition)
• Renal vein thrombosis - venogram (see: Renal venogram)
  (Medical Test)
• Renal venogram
  (Medical Test)
• Rendu-Osler-Weber syndrome (see: Hereditary hemorrhagic telangiectasia)
  (Condition)
• Renin blood test
  (Medical Test)
• Renogram (see: Renal scan)
  (Medical Test)
• Renovascular hypertension
  (Condition)
• Repair - aortic aneurysm - endovascular (see: Aortic aneurysm repair - endovascular)
  (Surgery)
• Repair - aortic aneurysm - endovascular - discharge (see: Aortic aneurysm repair - endovascular - discharge)
  (Discharge)
• Repair - aortic aneurysm - open (see: Abdominal aortic aneurysm repair - open)
  (Surgery)
• Repair - aortic aneurysm - open - discharge (see: Abdominal aortic aneurysm repair - open - discharge )
  (Discharge)
• Repair - aortic valve - discharge (see: Valvular heart disease (VHD) - overview)
  (In-Depth Animation)
• Repair - aortic valve - discharge (see: Heart valve surgery - discharge )
  (Discharge)
• Reperfusion therapy (see: Thrombolytic therapy)
  (Special Topic)
• Replacement - aortic valve (see: Aortic valve surgery - open)
  (Surgery)
• Replacement - aortic valve - discharge (see: Valvular heart disease (VHD) - overview)
  (In-Depth Animation)
• Replacement - aortic valve - discharge (see: Heart valve surgery - discharge )
  (Discharge)
• Rescue breathing and chest compressions - adult (see: CPR - adult and child after onset of puberty)
  (Injury)
• Rescue breathing and chest compressions - child (see: CPR - young child (age 1 year to onset of puberty))
  (Injury)
• Rescue breathing and chest compressions - child 9 years and older (see: CPR - adult and child after onset of puberty)
  (Injury)
• Rescue breathing and chest compressions - infant (see: CPR - infant)
  (Injury)
• Resources - heart disease (see: Heart disease - resources)
  (Special Topic)
• Respirator - health care agent (see: Health care agents)
  (Special Topic)
• Respirator - treatments that prolong life (see: Deciding about treatments that prolong life)
  (Special Topic)
• Respiratory failure - ABG (see: Blood gases)
  (Medical Test)
• Respiratory inductance plethysmography (see: Plethysmography)
  (Medical Test)
• Respiratory rate - rapid and shallow (see: Rapid shallow breathing)
  (Symptoms)
• Restrictive cardiomyopathy
  (Condition)
• Resuscitation - cardiopulmonary - adult (see: CPR - adult and child after onset of puberty)
  (Injury)
• Resuscitation - cardiopulmonary - child (see: CPR - young child (age 1 year to onset of puberty))
  (Injury)
• Resuscitation - cardiopulmonary - child 9 years and older (see: CPR - adult and child after onset of puberty)
  (Injury)
• Resuscitation - cardiopulmonary - infant (see: CPR - infant)
  (Injury)
• Reteplase (see: Thrombolytic therapy)
  (Special Topic)
• Retinal artery occlusion
  (Condition)
• Retinal photography (see: Fluorescein angiography)
  (Medical Test)
• Retinal vein occlusion
  (Condition)
• Retinopathy - fluorescein (see: Fluorescein angiography)
  (Medical Test)

Rh

• Rhabdomyolysis - myoglobin blood test (see: Myoglobin blood test)
  (Medical Test)
• Rhabdomyolysis - myoglobin urine test (see: Myoglobin urine test)
  (Medical Test)
• Rheumatic aortic stenosis (see: Aortic stenosis)
  (Condition)
• Rheumatic fever
  (Condition)
• Rheumatic fever - aortic stenosis (see: Aortic stenosis)
  (Condition)
• Rheumatoid arthritis - InDepth
  (In-Depth)
• Rheumatoid arthritis - Raynaud (see: Raynaud phenomenon)
  (Condition)
• Rheumatoid factor (RF)
  (Medical Test)

Ri

• Right aortic arch with aberrant subclavian and left ligamentum (see: Vascular ring)
  (Condition)
• Right aortic arch with aberrant subclavian and left ligamentum arteriosus (see: Vascular ring)
  (Condition)
• Right aortic arch with aberrant subclavian and left ligamentum ateriosus (see: Vascular ring)
  (Condition)
• Right heart catheterization (see: Swan-Ganz - right heart catheterization)
  (Medical Test)
• Right heart ventricular angiography
  (Medical Test)
• Right heart ventriculography (see: Right heart ventricular angiography)
  (Medical Test)
• Right ventricular assist device (see: Ventricular assist device)
  (Surgery)
• Right-sided heart failure (see: Cor pulmonale)
  (Condition)
• Right-sided heart failure - cor pulmonale (see: Heart failure)
  (Condition)
• Right-sided heart failure - cor pulmonale - InDepth (see: Heart failure - InDepth)
  (In-Depth)
• Right-to-left cardiac shunt (see: Cyanotic heart disease)
  (Condition)
• Right-to-left circulatory shunt (see: Cyanotic heart disease)
  (Condition)
• Rigid sigmoidoscopy (see: Sigmoidoscopy)
  (Medical Test)
• Ring annuloplasty - discharge (see: Heart valve surgery - discharge )
  (Discharge)
• Ring annuloplasty - discharge (see: Valvular heart disease (VHD) - overview)
  (In-Depth Animation)
• Risks of tobacco
  (Special Topic)
• Risky drinking (see: Health risks of alcohol use )
  (Self-Care)
• Risky drinking - cutting back (see: When you are drinking too much - tips for cutting back)
  (Self-Care)

Ro

• Robot assisted coronary artery bypass (see: Heart bypass surgery - minimally invasive)
  (Surgery)
• Robot assisted coronary artery bypass - discharge (see: Heart bypass surgery - minimally invasive - discharge)
  (Discharge)
• Robot-assisted coronary artery bypass (see: Heart bypass surgery - minimally invasive)
  (Surgery)
• Robot-assisted surgery (see: Robotic surgery)
  (Surgery)
• Robotic surgery
  (Surgery)
• Robotic-assisted laparoscopic surgery (see: Robotic surgery)
  (Surgery)
• Robotically-assisted aortic valve replacement (see: Aortic valve surgery - minimally invasive)
  (Surgery)
• Robotically-assisted aortic valve replacement, Trancatheter aortic valve replacement, TAVR. (see: Aortic valve surgery - minimally invasive)
  (Surgery)
• Robotically-assisted endoscopic aortic valve repair - discharge (see: Valvular heart disease (VHD) - overview)
  (In-Depth Animation)
• Robotically-assisted endoscopic aortic valve repair - discharge (see: Heart valve surgery - discharge )
  (Discharge)
• Robotically-assisted endoscopic aortic valve replacement (see: Aortic valve surgery - minimally invasive)
  (Surgery)
• Robotically-assisted endoscopic mitral valve repair - discharge (see: Heart valve surgery - discharge )
  (Discharge)
• Robotically-assisted endoscopic mitral valve repair - discharge (see: Valvular heart disease (VHD) - overview)
  (In-Depth Animation)
• Robotically-assisted endoscopic valve repair (see: Mitral valve surgery - minimally invasive)
  (Surgery)
• Robotically-assisted, endoscopic valve repair, Percutaneous mitral valvuloplasty (see: Mitral valve surgery - minimally invasive)
  (Surgery)
• Rosuvastatin (Crestor) (see: How to take statins)
  (Special Topic)
• Rosuvastatin (Crestor®) (see: How to take statins)
  (Special Topic)
• Roughage (see: Fiber)
  (Nutrition)
• Routine eye examination (see: Standard eye exam)
  (Medical Test)
• Routine urine test (see: Urinalysis)
  (Medical Test)
• Roux-en-Y gastric bypass (see: Gastric bypass surgery)
  (Surgery)

Rv

• RVAD (see: Ventricular assist device)
  (Surgery)