NFPA Standard ____ addresses vapor-protective hazardous ensembles and materials emergencies.

When a kidney stones exceeds _________ in diameter, intervention is usually required

A) 4 mm B) 5 mm C) 7 mm D) 9 mm

The use of aircraft for emergency patient transport has become a(n) _______ _______ of modern EMS practice

Fill in the blank(s) with correct word