honeypot link
skip to main content
Professional
Consumer
MERCK MANUAL
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
DRUG INFO
RESOURCES
COMMENTARY
ABOUT US
HEALTH TOPICS
HEALTHY LIVING
Home
/
Quick Facts: Digestive Disorders
/
Diagnosis of Digestive Disorders
/
Diagnosis of Digestive Disorders
Expand all
Collapse all
Acid-Related and Reflux-Related Tests
What are the tests for acid reflux?
Catheter-based monitoring
Wireless monitoring
Endoscopy
What is an endoscope?
What is endoscopy?
Why do doctors do endoscopy?
How do I get ready for an upper endoscopy?
How do I get ready for a lower endoscopy (colonoscopy)?
What happens when I have endoscopy?
Is endoscopy safe?