Lab

Urine Leukocyte Esterase

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Urine Leukocyte Esterase, Urine Dipstick Leukocyte Esterase

  • Mechanism
  1. Neutrophil Granulocytes contain esterases
  2. Positive test suggests pyuria
    1. Dipstick requires 5 minutes to change color
  • Interpretation
  • Normal
  1. Negative
  • Interpretation
  • Positive (Abnormal)
  1. Inadequate time allowed for dipstick reading (60 to 120 seconds)
  2. Increased Urine Specific Gravity
  3. Urine Glucose present (Glycosuria)
  4. Urine Ketones present (Ketonuria)
  5. Urine Protein present (Proteinuria)
  6. Vitamin C
  7. Enterococcus UTI
  8. Klebsiella UTI
  9. Antibiotics
    1. Cefalexin (Keflex)
    2. Nitrofurantoin (Macrobid)
    3. Tetracycline
    4. Gentamicin