Lactose Consumption Test
5 days
Enzymatic
Accredited Laboratory Partner
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Measures blood glucose after lactose ingestion. Diagnoses lactose intolerance.
Plasma
Full tube for each sample
Gray-top (sodium fluoride) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Draw fasting sample prior to lactose administration. Give lactose according to the following: • Children up to 12 years: 2 g/kg body weight with a maximum of 50 g in 250 mL water. • Adults: 50 g in 250 mL water Collect specimens at 30, 60, 90, and 120 minutes following lactose administration. Label each tube with the patient's name and time of drawing according to the following: The first tube should be labeled with the "patient's name," "fasting," and the time of the draw. The remaining four tubes should be labeled with the "patient's name" and the time of the draw.
| Temperature | Period |
|---|---|
| Room temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |