In what order are complications of colonoscopy typically reported from most common to least common?

The correct sequence for reporting complications of colonoscopy from most common to least common typically aligns with the trends observed in clinical practice. Hypoxia is often one of the most common complications due to various factors, including sedation and patient positioning. It can occur when patients experience respiratory depression or any form of airway obstruction.

Following hypoxia, hypotension may be seen, especially in older patients or those with underlying health conditions. The administration of sedatives can also contribute to drops in blood pressure.

Bradycardia, which refers to a slower than normal heart rate, usually occurs less frequently than hypotension. It can result from vagal stimulation during the procedure but is generally not as common as the earlier-mentioned complications.

Arrhythmias, while serious, are considered the least common complication from the options provided. They usually occur in a smaller subset of patients with pre-existing cardiac issues or those who react adversely to sedatives.

This hierarchy of complications emphasizes the importance of monitoring patients closely for respiratory and cardiovascular stability throughout the colonoscopy procedure.