The formula for the perimeter (P) of a triangle is P = a + b + c. If the perimeter is 120 ft, a = 30 ft and b = 40 ft, what is the length of side c?Answer: ___________

A 22-year-old female, who is eight months pregnant, calls 911 for vaginal bleeding. Your assessment reveals no threats to the ABCs, but she does have some evidence of blood in her underwear. The patient denies pain. Her vital signs are normal. Given these findings, the EMT should be suspicious of:

A) uterine rupture. B) ectopic pregnancy. C) pelvic inflammatory disease. D) placenta previa.

Cuffed ET tubes are generally not used in the field until the child is 8 to 10 years old because:

A) the cuff would apply pressure and obstruct the airway. B) the high-pressure cuff would likely rupture the trachea. C) most children are only intubated for short periods of time. D) a cuff at the cricoid ring is not necessary to obtain a seal.