Defibrillation is the treatment of choice for ventricular fibrillation

Which of the following are strategic considerations for fires in enclosed malls?

A) Hose-lines of 1 ½ -inch or 1 ½ -inch may be ineffective. A 2 ½ -inch hose-line may be needed instead. B) Ventilation may be difficult; the use of positive pressure ventilation is doubtful. C) Salvage can be tremendous and, overall, will be extensive. D) All of the above

What condition occurs when air pressure in the hollow spaces of the body (such as the middle ear and sinuses) rises too high or drops too low due to a diving accident?

A) Arterial gas embolism B) Nitrogen narcosis C) Decompression sickness D) Barotrauma