A helium/oxygen (heliox) mixture of 80%/20% has a density compared with oxygen of:
A) 1.8 times greater
B) 1.6 times greater
C) 1.8 times lower
D) 1.6 times lower
C
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A patient with known arteriosclerosis was outside doing lawn work when he started experiencing chest pain. Upon your arrival, the patient states that he has been resting and took a prescribed nitroglycerin tablet 5 minutes ago. The patient states that the pain is subsiding. You suspect:
A) unstable angina. B) stable angina. C) Prinzmetal's angina. D) myocardial infarction.
Lead II measures the voltage change between the right arm and the left arm.
Answer the following statement true (T) or false (F)
Divide each of the following.a. 
=b. 
=c. 
=d. 
=
What will be an ideal response?
An unhelmeted patient who was thrown from a motorcycle has a large scalp avulsion with obvious depression to the top of his head. These findings suggest which of the following injuries?
A) Intracranial hematoma B) Linear skull fracture C) Open head injury D) Basilar skull fracture