Pyuria
The finding of more than four white blood cells per high-power field on a urine specimen is suggestive of urinary tract inflammation, although as with hematuria, the precise site is not identified. Pyuria as an isolated finding is most commonly associated with bacterial urinary tract infection. When associated with hematuria or proteinuria, pyuria is suggestive of parenchymal renal disease such as glomerulonephritis or interstitial nephritis.
The presence of pyuria should initiate a search for urinary tract infection, particularly when the patient complains of dysuria, flank pain, or fever. Renal imaging studies are often indicated to exclude the presence of renal parenchymal scarring, obstruction, or abscess formation, particularly when accompanied by signs of renal dysfunction such as azotemia.
- ENDOSCOPIC PROCEDURES
- PRE-EXCITATIOIi SYNDROMES
- VASCULAR DISEASE OF THE LIVER
- OTHER ESOPHAGEAL DISORDERS
- Restrictive Cardiomyopathy
- CYSTIC FIBROSIS
- Diagnosis
- Magnetic Resonance Imaging (MRI)
- Hypersensitivity Pneumonitis
- MOTOR DISORDERS OF THE ESOPHAGUS
- PHYSIOLOGY OF THE CORONARY CIRCULATION
- AORTIC ARTERITIS
- Clinical Course, Pathogenesis, and Anatomy of Acute Tubular Necrosis
- Nephrotic Glomerulopathies
- COMPLICATIONS OF MYOCARDIAL INFARCTION AND THEIR MANAGEMENT
- Hematopoietic System
- DRUGS
- ANTIBIOTICS
- CHEST WALL DISEASE
- MYOCARDIAL DISEASE - MYOCARDITIS
- Lower GI Bleeding
- Radionuclide Imaging
- Pyuria
- Proliferative Glomerulonephritis
- Nosocomial Pneumonia
- CARCINOMA OF THE PANCREAS - Diagnosis
- DROWNING AND NEAR-DROWNING
- Differential Diagnosis and Evaluation of the Patient
- Other Clearly Extrinsic Causes of Diffuse Infiltrative Lung Disease
- Treatment and Prognosis
- CLASSIFICATION OF THE MALABSORPTION SYNDROMES
- Procainamide
- CARDIAC TUMORS
- APPROACH TO THE PATIENT WITH RENAL DISEASE
- PHYSICAL EXAMINATION