Which of the following can cause pulmonary emboli?
?
I. Prolonged inactivity
II. Pregnancy and childbirth
III. Obesity
IV. Hypercoagulation disorders
A. I, II, III, and IV
B. I, III, and IV only
C. I and IV only
D. I, II, and III only
Answer: A
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The maximum energy setting for the monophasic defibrillator is:
A) 200 watts-seconds B) 300 watts-seconds C) 360 watts-seconds D) 400 watts-seconds
Which of the following statements is false regarding the use of the chest x-ray to detect a pneu-mothorax?
a. An expiratory film may be best for a small pneumothorax. b. The standard chest film is of limited use in detecting a pneumothorax. c. The film will show a lack of vascular markings in the affected region. d. The lung margin is often visible with a pneumothorax.
You are at the scene where a man panicked while swimming in a small lake. As you attempt to rescue this patient, you should first
A. throw a rope to the patient B. row a small raft to the patient C. swim to the patient to rescue him D. attempt to grab the patient with a stick
Which of the following statements about oxygen concentrations and combustions is MOST accurate?
A. Combustion does not occure at concentrations below about 18% because fire needs oxygen to burn. B. Combustion will occur below normal oxygen levels only when the substance burning is an oxidizer C. Combustion requires oxygen levels in the immediate range of ambient air (21%) in order to burn freely D. Combustion may occur at oxygen concentrations as low as 14% or lower given the right circumstances