Following ascent by lowlanders to high altitudes, when do symptons of acute mountain sickness normally appear?

Which is an appropriate method of initially opening the airway of an unconscious trauma patient?

A) Head-tilt/chin-lift B) Nasal tracheal intubation C) Oral tracheal intubation D) Jaw-thrust maneuver

Which of the following is the heart rate range of children 1 to 3 years old?

a. 120–150 bpm b. 98-140 bpm c. 70–110 bpm d. 60–100 bpm