Clovis - CA

Finding a Lactose Tolerance Test in Clovis

A lactose tolerance test helps determine whether the body can properly digest lactose, the sugar found in milk and dairy products. Lactose Tolerance Test testing in Clovis, CA: order online, visit a patient service center near you, and review your results in a secure account.

Typical price

From $159

Results

1-3 business days

Preparation

See preparation notes below

A lactose tolerance test helps determine whether the body can properly digest lactose, the sugar found in milk and dairy products. Lactose is normally broken down by an enzyme called lactase in the small intestine. When lactase activity is low, undigested lactose can cause bloating, gas, cramps, and diarrhea. During the test a lactose solution is consumed and blood glucose is measured over time; a normal rise in glucose suggests lactose was absorbed, while a flat response can support a diagnosis of lactose intolerance.

• Blood Glucose (fasting and serial) Glucose measured before and at timed intervals after drinking a lactose solution to see whether lactose is digested and absorbed.

• People with bloating, gas, or diarrhea after consuming dairy
• Individuals who suspect they cannot digest milk or milk products
• People being evaluated for chronic digestive symptoms
• Individuals who want to confirm lactose intolerance before changing their diet

• Fast for 8 to 12 hours before the test; water is usually permitted
• Avoid smoking and strenuous exercise on the morning of the test
• Tell the phlebotomist about medications, especially antibiotics or diabetes medicines
• Do not eat during the test; you will remain for the full collection period

A normal rise in blood glucose after the lactose drink suggests lactose is being digested and is not the cause of symptoms. A small or flat rise may indicate lactose intolerance or another cause of malabsorption. Because glucose responses vary and other conditions can mimic lactose intolerance, results are considered with your symptoms and history. Discuss any positive findings and dietary changes with a healthcare provider.

See Lactose Tolerance Test across California