The medical term micro- means:
A) large.
B) excessive.
C) small.
D) lacking.
C
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Which of these image receptor holders is designed for use with the bisecting technique?
A) 105-degree angled backing plate and short biteblock B) 105-degree angled backing plate and long biteblock C) 90-degree angled backing plate and long biteblock D) 90-degree angled backing plate and short biteblock
What is the difference between ventricular tachycardia and ventricular fibrillation?
A. Ventricular fibrillation is chaotic in appearance; ventricular tachycardia has an absence of P waves, a heart rate of 40-100 bpm, and a wide and bizarre QRS complex. B. Ventricular fibrillation is chaotic electrical activity with only fibrillatory waves; ventricular tachycardia has an absence of P waves, a heart rate less than 20 bpm, and wide and bizarre QRS complexes. C. Ventricular tachycardia has three or more PVCs and a heart rate greater than 100 bpm; ventricular fibrillation has no P wave and an early QRS complex that is wide and bizarre in appearance. D. Ventricular tachycardia has three or more PVCs and a heart rate greater than 100 bpm; ventricular fibrillation is chaotic electrical activity with only fibrillatory waves.