The electrical impulse of the heart normally begins at the:
A. bundle of His.
B. sinoatrial node.
C. atrioventricular node.
D. Purkinje fibers.
Answer: B. sinoatrial node.
You might also like to view...
You are dispatched to a multiple vehicle collision on a busy interstate highway. Your crew identifies a critical patient entrapped in a small sedan with significant intrusion into the occupant area on the front and left side. One of your crew members, dressed in fully protective gear, volunteers to enter the vehicle to begin assessment and treatment. Given that access to the patient is limited,
you tell him to concentrate on assessing which of the following parts of the patient's body? A) Head, posterior torso, and lower extremities B) Torso, pelvis, and lower extremities C) Head, chest, and upper extremities D) Head, chest, and torso
You are caring for a patient injured in a back-country fall. You have accessed the patient and packaged him for transport and are awaiting the arrival of a helicopter. Knowing that the patient is 30 to 40 minutes from the nearest hospital by air, which of the following should you consider?
A) Stopping fluid administration to keep the patient from needing to urinate during transport B) Removing splinting material to prevent compartment syndrome C) Administering pain medication and wrapping the patient in blankets D) Administering a sedative due to the long transport time
Animal breeders and technicians help breed, raise, and market:
A)cattle B)canaries C)ostriches D)all of these answers are correct
You are on-scene with a two-year-old girl. Which of the following would MOST likely indicate neglect or abuse?
A) She cries as you attempt to assess her. B) She is dirty and has bad breath. C) She has bruises on her legs and torso. D) She is wearing a dirty diaper.