Inflammation of the outer ear is called:
A) otitis
B) otitis externa
C) otitis media
D) otitis interna
B
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________ are specialized tissue that contracts when stimulated to produce body movement or body/organ functions
A) Muscles B) Ligaments C) Cartilage D) Tendons
Which of the following formulations is available for acidulated phosphate fluoride?
a. 1.23% gel b. 1.23% rinse c. 2.0% tablets d. 2.0% foam
Anesthesia for cardiac electrophysiology
A) 00406 B) 00537 C) 00797 D) 00860
Which of the following statements regarding second-degree heart block is correct?
A) Most second-degree heart blocks are transient in nature and resolve in the prehospital setting without the need for intervention in the emergency department. B) Second-degree heart block occurs when an impulse reaching the AV node is occasionally prevented from proceeding to the ventricles and causing a QRS complex. C) More than half of all second-degree heart blocks cause hemodynamic compromise and require transcutaneous cardiac pacing in the prehospital or hospital setting. D) Second-degree heart block is characterized by inconsistent PR intervals, a QRS complex greater than 0.12 seconds, and a ventricular rate less than 40 beats/min.