What are the conditions for driving under "Code 3" exemption?

When driving under "Code 3" conditions, which typically signifies the use of lights and sirens in an emergency vehicle, the operator must be responding to situations where time is critical. The correct choice highlights that all of the listed conditions—uncontrolled cardiovascular impairment, uncontrolled hemorrhage, and complicated childbirth—are emergencies that necessitate the urgent response facilitated by "Code 3" driving.

In cases of uncontrolled cardiovascular impairment, rapid medical intervention can be essential to prevent severe outcomes, making urgent transport vital. Similarly, uncontrolled hemorrhage poses an immediate threat to life due to potential blood loss, requiring quick action. Lastly, complicated childbirth situations can arise unexpectedly and may require expedited transport to ensure the safety of both the mother and the child.

By encompassing all these conditions, "Code 3" provides flexibility for emergency drivers to respond effectively wherever immediate medical attention is required, thus justifying the choice of all the aforementioned scenarios as valid reasons for utilizing this driving exemption.