
Upper endoscopy is a method used to examine the gastrointestinal tract. This is done using a small camera located at the end of a long tube.
Endoscopy is the placement of long, narrow tubes directly on the body that allows for accurate observation of internal organs and tissues. Endoscopy is also used to perform other tasks, such as imaging and minor surgeries.
Spirometry is a common way to measure and record the respiratory capacity of the lungs.
In many patients, cardiac arrhythmia is not permanent. An ECG may be perfectly normal when a patient goes to the office, but may show an arrhythmia as the patient leaves the office and during daily life. Sometimes it may be necessary to check the patient's ECG for a long time to determine the severity and importance of the arrhythmia or how it relates to the patient's symptoms.