Which of the following is NOT one of the thermal properties that affect a compartment fire?

You are transporting a child with a small laceration to his leg, sustained after cutting himself of a piece of broken glass. During transport, you observe a pulse oximeter reading of 87% on the frantic, crying, and actively moving child. The child is alert and oriented with a normal pulse and respiratory rate with pink skin that is warm to touch. Your immediate action would be to:

A) start positive pressure ventilation with supplemental oxygen. B) attempt to calm the child and obtain another SpO2 reading. C) apply high-concentration oxygen via nonrebreather. D) check the laceration for uncontrolled bleeding.

The mechanism in which the atria are depolarized with a backward flow of electricity is called ________ conduction

A) retrograde B) negative C) backward D) junctional