A patient develops an allergic reaction after taking penicillin. In this case, the penicillin would be recognized by the body as:
A) A form of immunoglobulin E
B) An antigen
C) A mast cell
D) An antibody
B) An antigen
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The modifier -57 is used to indicate:
A. repeat procedure by the same physician. B. unrelated evaluation and management (E/M) service by the same physician during a postoperative period. C. significant, separately identifiable E/M service by the same physician on the same day of the procedure or other service. D. a decision for surgery.
While checking a polarographic (Clark) electrode, you determine that the device fails to read 100% when exposed to pure O2. Which of the following actions would be the proper first step?
a. Check the silica crystals. b. Send the device out for repair. c. Replace the analyzer's batteries. d. Change the analyzer's fuel cell.
In order for a tracheostomy tube to be compatible with a mechanical ventilator or bag-mask device:
A) it should have a stylet that can be removed easily. B) it should have an internal diameter of at least 6.0 mm. C) the patient's head must be in a hyperextended position. D) it must be equipped with a 15/22-mm proximal adaptor.
The term tachycardia means:
A. absence of heart rate. B. slow heart rate. C. fast heart rate. D. normal heart rate.