What is a common sign of an air embolus during hysteroscopy?

A common sign of an air embolus during hysteroscopy is an alteration in hemodynamic status. When an air embolus occurs, it can enter the venous system and potentially travel to the right side of the heart, leading to serious complications. The introduction of air into the circulatory system can result in various cardiovascular changes, such as hypotension, changes in heart rate, and even arrhythmias. These alterations in hemodynamics are indicative of the body's response to the sudden presence of air in the bloodstream, which can impair blood flow and oxygen delivery to vital organs.

Other potential signs of an air embolus, such as increased heart rate or persistent cough, may occur, but they are not as definitive as an evident alteration in hemodynamic status. For instance, changes in heart rate may be present, but they can also result from a variety of other causes unrelated to an air embolus. Similarly, an elevation in blood pressure might not be observed consistently in cases of air embolism, especially if the hemodynamic response is primarily towards hypotension. Recognizing and monitoring for alterations in hemodynamic status is crucial for early detection and management to mitigate the risks associated with air embolism during procedures like hysteroscopy.