Lab

Lactose Tolerance Test

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Lactose Tolerance Test

  • See Also
  1. Lactose Intolerance
  2. Lactose Breath Hydrogen Test
  • Indications
  1. Lactose Intolerance testing
  • Technique
  1. Obtain baseline Fasting Blood Glucose
  2. Patient ingests 1 to 1.5 grams lactose per kilogram
  3. Measure serial Blood Glucose levels
  1. Blood Glucose rises <20 mg/dl above Fasting level
  2. Intestinal symptoms of Lactose Intolerance present
  • Efficacy
  1. False Positive Rate: 20%
  2. False Negative Rate: 20%