A 69-year-old man is unresponsive. He has a weak carotid pulse at 40 beats/min and his skin is cool and pale. From this information, the EMT should conclude that:
A) he is in ventricular fibrillation.
B) his cardiac output is reduced.
C) he has a blocked coronary artery.
D) his systolic BP is at least 90 mm Hg.
Answer: B) his cardiac output is reduced.
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A method of reimbursing providers based on what other providers are paid for a particular service is known as the
A) usual charge and reasonable cost plan. B) usual, customary, and reasonable price C) universal charge and reimbursement plan D) ordinary and customary cost program
Plasma, the liquid component of blood, is mostly water.
Answer the following statement true (T) or false (F)
For a PA cranial projection,
1. the midsagittal plane is positioned parallel with the IR. 2. the OML is aligned perpendicular to the IR. 3. the central ray is aligned perpendicular to the IR. 4. the central ray is centered to the nasion. a. 1 and 3 only b. 2 and 3 only c. 2, 3, and 4 only d. 1 and 4 only
What is the term for the ability of the heart cells to transmit electrical current from cell to cell?
a. irritability c. automaticity b. contractility d. conductivity