In which direction should the electrode tabs point for a 12-lead ECG?
Answer: Arm electrodes down, leg electrodes up, precordial electrodes down.
You might also like to view...
A 40-kg boy is standing on the edge of a stationary 30-kg circular platform that is free to rotate. The boy tries to walk around the platform in a counterclockwise direction. As he does:
a. the platform doesn't rotate. b. the platform rotates in a clockwise direction just fast enough so that the boy remains stationary relative to the ground. c. the platform rotates in a clockwise direction while the boy goes around in a counterclockwise direction relative to the ground. d. both go around with equal angular velocities but in opposite directions.
What is the frequency of the light emitted by atomic hydrogen with m = 8 and n = 12? (The Rydberg constant is R = 1.097 × 107 m-1, c = 3.00 × 108 m/s)
A) 2.86 × 1013 Hz B) 1.43 × 1013 Hz C) 7.46 × 1013 Hz D) 8.82 × 1013 Hz E) 1.05 × 1013 Hz
What do astronomers infer from the motion of the distant galaxies?
A. The Universe is static. B. The Universe is spinning. C. The Universe is contracting. D. The Universe is expanding. E. None of these choices is correct.
Light travels fastest in
A) warm air. B) cool air. C) a vacuum.