The FDA pregnancy category for benzocaine is _______

Which of the following would clearly be detrimental to a patient in cardiac arrest?

A) Ventilating just until the chest rises B) Performing CPR before defibrillation C) Interrupting CPR for more than 10 seconds D) Ventilating without supplemental oxygen

An ultrasound study would NOT be useful to observe the actions of heart valves

Indicate whether the statement is true or false