What is the most essential question to ask a child's mother regarding frequent bathroom visits at school?

When assessing a child's frequent bathroom visits at school, asking about the frequency of bathroom use at home is vital. This question provides insight into whether the behavior is consistent across different environments. If the child is also using the bathroom frequently at home, it may indicate an underlying issue such as a urinary tract infection, diabetes, or anxiety, which manifests similarly in various settings. The consistency of the behavior can help delineate the problem further and guide subsequent inquiries or examinations.

While questions about a recent physical examination, nighttime bedwetting, or attention span can offer additional context, they do not directly address the core issue of the child's bathroom habits. Understanding patterns of behavior in different settings — home versus school — is crucial for determining the appropriate next steps in evaluation and management.