Washington Manual of Medical Therapeutics
- Rabbit antithymocyte globulin
- Rabies
- Radicular signs
- Radioactive iodine (RAI) therapy, hyperthyroidism
- Radioactive iodine uptake (RAIU)
- Radiocontrast sensitivity reactions
- Radionuclide scanning, renal disease
- Ranolazine
- Rapid antigen detection testing (RADT)
- Rapid diagnostic testing
- Rapidly progressive glomerulonephritis
- Rapid urease assay
- Raynaud phenomenon (RP)
- Reactive thrombocytosis
- Rebound headache
- Rebound ketoacidosis
- Recombinant human deoxyribonuclease
- Recombinant porcine factor VIII
- Rectal tubes
- Recurrent cystitis
- Red cell distribution width (RDW)
- Red man's syndrome
- Refeeding syndrome
- Reflux esophagitis
- Regadenoson
- Regurgitation
- Rejection, of transplant
- Relapsed/refractory immune thrombocytopenia
- Relapsed/refractory non-Hodgkin lymphoma
- Relapsing-remitting multiple sclerosis (RRMS)
- Relative reticulocyte count
- Renal abscesses
- Renal allograft dysfunction
- Renal cell carcinoma (RCC)
- Renal failure, acute pancreatitis
- Renal medulla infarction
- Renal replacement therapy
- Renal transplantation
- Renal vein thrombosis, chronic kidney disease (CKD)
- Renal water loss
- Renin-angiotensin-aldosterone system (RAAS)
- Renin-angiotensin system
- Repaired congenital heart disease
- Resistant hypertension
- Respiratory bronchiolitis interstitial lung disease (RB-ILD)
- Respiratory depression
- Respiratory disturbance index (RDI)
- Respiratory effects, hypothermia
- Respiratory effort-related arousals (RERAs)
- Respiratory failure
- Respiratory rate and pattern, coma
- Response Evaluation Criteria in Solid Tumors (RECIST) 11 Criteria [table]
- Restenosis
- Reticulocyte index (RI)
- Retinol [table]
- Retinopathy
- Retroperitoneal lymph node dissection (RPLND)
- Retropharyngeal abscess
- Rewarming, hypothermia
- Rheumatic fever
- Rheumatic mitral stenosis
- Rheumatoid arthritis (RA)
- Rheumatoid factor (RF)
- Rhinitis, eosinophilia
- Ribavirin
- Rifamycins
- Rifapentine
- Rifaximin
- Rigidity disorders
- Rimantadine
- Riociguat [table]
- Rocky mountain spotted fever (RMSF)
- Rocuronium [table]
- Romiplostim
- Roux-en-Y gastric bypass, gastroesophageal reflux disease (GERD)
- Roxadustat