Which question is of least relevance when assessing a mother’s imminent delivery?

When assessing a mother's imminent delivery, the question about whether she has had a sonogram is of least relevance. This inquiry does not provide immediate critical information regarding the labor progression or the current status of the delivery. The purpose of assessing imminent delivery focuses on the signs and readiness for the baby to emerge, such as whether the mother feels the need to push, which is a direct indicator of advanced labor.

In contrast, knowing the expected due date can help determine how far along the mother is in her pregnancy, while asking if this is her first baby can yield information about potential complications or variations in the delivery experience based on previous childbirth. Therefore, the sonogram question, while it may have relevance for prenatal care or understanding fetal development, does not address the urgency or circumstances of the impending delivery.