What is the value of x in the equation ?

Changes in the volume of the thoracic cavity result from movements of the diaphragm and the:

A) pectoral muscles. B) appendicular skeleton. C) rib cage. D) None of the above

You are a field supervisor for your EMS system and are working with a new EMT during his probationary period. Both of you are currently on the scene of a 10-month-old pediatric patient for what dispatch describes as "an unknown medical emergency." Upon arrival, the parents state the infant is "just not acting right." Currently the infant opens his eyes when you shout his name suddenly, he can localize painful stimuli when applied, and he is grunting with each respiration. He was born 3 weeks premature. His capillary refill is 2 seconds. You ask your new EMT to calculate the pediatric GCS score. The EMT should respond with which numeric value?

A) 6 B) 8 C) 10 D) 12