Which cardiac cell characteristic function is mechanical?
A) automaticity
B) excitability
C) conductivity
D) contractility
Question 2
You are dispatched to a local mall and are met by bystanders who state that the patient was talking to a customer representative and passed out. You find an alert and oriented 55-year-old female lying supine on the tile floor. The patient tells you that the back of her head is hurting. Which one of the following actions should you perform first?
A) Open her airway with a jaw-thrust.
B) Obtain a full set of vital signs.
C) Take manual in-line spinal stabilization.
D) Assess the back of the patient's head for injury.
