Tests

• Waldenström - serum electrophoresis
• Waldenstrom - serum globulin
• Waldenström macroglobulinemia - UPEP
• Warm agglutinins
• Warm water calorics
• Water deprivation test
• Water loading test
• Waxy casts
• WBC count
• WBC esterase
• WBC scan
• Weil-Felix reaction
• Western blot for Lyme disease
• Wet prep
• Wet prep - fungal
• White blood cell casts
• White blood cell count
• White blood cell differential count
• Whole-body plethysmography
• Widal test
• Widal's test
• Wireless capsule endoscopy
• Wood's lamp examination
• Wrist MRI