A 40-year-old male has crashed his motorcycle. Your general impression identifies that he is unconscious and that he has blood spurting out of the junction of his leg and his groin. You also hear gurgling respirations. You should first:

Which of the following is the most common cause of airway obstruction in the unconscious patient?

If you hear a gurgling sound when you are assessing the airway or during artificial ventilation, you should:

Which of the following scenes would require you to be extra vigilant?

An insufficient supply of oxygen to the body’s tissues is known as:

An explosion has occurred at a local church. You are the first responding medical unit, and you note many patients lying in the street. After establishing incident command, you should next:

Why would an EMT select an NPA instead of an OPA?

If  y = cos ⁡ ( 2 x ) {“version”:”1.1″,”math”:”y=\cos(2x)”} is a solution to a linear homogeneous second order constant coefficient ordinary differential equation, then another solution must be

Which of the following functions is a solution to the differential equation  y ″ + 12 y ′ + 36 y = 0 ? {“version”:”1.1″,”math”:”y”+12y’+36y=0?”}

Let  f ( x , y ) = ( x 3 + x ) y 2 . {“version”:”1.1″,”math”:”f(x,y)=(x^3+x)y^2.”}Find the value of the partial derivative  f x y ( 0 , 1 ) . {“version”:”1.1″,”math”:”f_{xy}(0,1).”}