Which of the following conditions documented on the health history should prompt the medical examiner to obtain further information?

Cirrhosis is a serious liver condition that can significantly affect a person's health and capacity to perform in a driving or safety-sensitive role. When documented in a health history, it indicates advanced liver disease that can lead to complications like liver failure, portal hypertension, and an increased risk for other health issues. Given the potential impact on an individual's ability to safely operate commercial vehicles, the medical examiner is obligated to gather further information regarding the severity of the cirrhosis, the patient's overall liver function, and any related complications to assess their fitness for duty accurately.

In contrast, a history of Hepatitis A, GERD, and a history of appendectomy are typically less concerning in terms of their direct effects on an individual's immediate health status or their ability to perform job-related tasks. Hepatitis A is generally an acute condition that does not lead to chronic complications. GERD, while potentially uncomfortable, does not usually impair physical capabilities significantly. A history of appendectomy indicates a resolved surgical issue without long-term health implications. Thus, while all conditions merit consideration in a health history review, cirrhosis stands out as a condition requiring more in-depth assessment.