EKG paper is divided into small squares. Each is 1 mm in height and width and represents a time interval of:
A) 0.04 seconds
B) 0.08 seconds
C) 0.12 seconds
D) 0.20 seconds
A
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Which of the following statements best describes a propellant?
a. A mixture of an oxidizer and some other arbitrary substance that readily burns. b. An oxidation-reduction reaction between the components of black-powder when its initiated by a heat from primer. c. A material such as smokeless powder that defragrates and produces a relatively large volume of gases and vapors. d. A component of the round that explodes from the mechanism shock it experiences when it hits a target.
Which of the following factors determine how much of a given gas can dissolve in a liquid? 1. Solubility coefficient of the gas 2. Temperature of the liquid 3. Gas pressure above the liquid
a. 2 and 3 only b. 1 and 2 only c. 1 and 3 only d. 1, 2, and 3
____ (low cardiac output) occurs when the impaired ventricle is unable to overcome the pressure in the receiving artery to expel its contents.
A. Diastolic dysfunction B. Hypertrophic cardiomyopathy C. Restrictive cardiomyopathy D. Systolic dysfunction
Zero order kinetics results:
A. When there are equal amounts of enzyme and substrate present. B. When there is more enzyme than substrate present. C. When all of the available sites on the enzyme are saturated with substrate. D. When none of the available sites are saturated with substrate.