The device used to measure the electrical activity of the heart is a(n) ____________
a. pulse oximeter
b. capnograph
c. electrocardiograph
d. galvonometer
c
RATIONALE: The device used to measure the electrical activity of the heart is an electrocardiograph.
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Which one of the following statements made by an EMT shows a proper understanding of what is required when restraining a patient?
A) "To decrease the potential legal problems, it is best to have the patient agree to being restrained and have family members, if present, act as witnesses." B) "One person should be assigned the task of explaining everything to the patient before, during, and after he has been restrained." C) "Always come at the patient with more force than you think is needed so the job of restraining can be done quickly and effectively." D) "Securing the patient's arms and legs to the stretcher with handcuffs is a very effective form of restraint, but should only be used if police are present."
Which type of pressure-measurement device is used to measure a patient's maximum inspiratory pressure?
a. Variable inductance c. Plethysmograph b. Aneroid manometer d. Strain gauge