An ECG monitor is useful for:
A) determining cardiac output.
B) evaluating the heart's electrical conduction system for abnormalities.
C) determining stroke volume.
D) evaluating the effectiveness of cardiac contractions.
B
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________ is (are) an instrument that is used for quadrant streaking to isolate pathogenic colonies of organisms from normal flora in a culture grown in a Petri dish.
A. A needle B. Incineration equipment C. A wire inoculating loop D. Culture media
Where does the electrical impulse start in the heart?
a. sinoatrial node b. atrioventricular node c. bundle of His d. Purkinje fibers
Why should you never download or transfer public domain software, files from electronic bulletin boards, or other communication systems in the medical office?
You respond to a call for an unknown emergency. When you arrive at the scene, the patient's husband meets you at the door and states that his wife has been depressed and has locked herself in an upstairs bedroom. He further tells you that he keeps his handgun in the bedroom. You should:
A. ask the husband to attempt to reason with his wife. B. remain in a safe place and request law enforcement. C. get in your ambulance and leave the scene immediately. D. go upstairs with caution and attempt to talk to the patient.