Cystitis laboratory findings

Urinary Tract Infections Main Page
Cystitis Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Cystitis from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
Electrocardiogram
X Ray
Echocardiography and Ultarsound
CT Scan
MRI
Other Imaging Findings
Other Diagnostic Tests
Treatment
Medical Therapy
Interventions
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Cystitis laboratory findings On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Cystitis laboratory findings All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Cystitis laboratory findings
CDC on Cystitis laboratory findings
Cystitis laboratory findings in the news
Blogs on Cystitis laboratory findings
Directions to Hospitals Treating Cystitis
Risk calculators and risk factors for Cystitis laboratory findings

Steven C. Campbell, M.D., Ph.D.

Laboratory Findings

Urinalysis

• A urinalysis commonly reveals white blood cells (WBCs) or red blood cells (RBCs).
• Pyuria: >5-10 WBC/hpf or 27 WBC/microliter
• Dipstick:
  • Nitrate reductase test: The nitrate reductase test is a test to differentiate between bacteria based on their ability or inability to reduce nitrate (NO₃) to nitrite (NO₂) using anaerobic respiration.
  • Leukocyte esterase: Leukocyte esterase (LE) is a urine test for the presence of white blood cells and other abnormalities associated with infection.

Urine Culture

• A urine culture (clean catch) or catheterized urine specimen may be performed to determine the type of bacteria in the urine and the appropriate antibiotic for treatment.
• Most patients with urinary tract infection will have > 100,000 colonies of organism.