______________________ is an antidote for known betablocker overdose
a. Glucagon
b. Epinephrine
c. Dextrose 50%
d. Calcium chloride
a
Rationale: a. Correct.
b. Epinephrine is indicated in cardiac arrest and anaphylaxis.
c. Dextrose is indicated in hypoglycemia.
d. Calcium chloride is contraindicated when beta blockers have been taken.
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An iron lung is which type of ventilator?
a. Fluidic c. Negative-pressure b. Positive-pressure d. Positive/negative pressure
In a properly performed traditional surgical tracheotomy, entrance to the trachea is made through an incision in what area?
a. Through or between the first and second tracheal rings b. Through the ligament between the thyroid and cricoid cartilages c. Through or between the second and third tracheal rings d. Between the cricoid cartilage and the first tracheal ring
A characteristic of open punctuation is
A. a colon after the salutation. B. no punctuation used after the signature block. C. a comma after the complimentary closing. D. a period after the enclosure notation.
Which of the following appears more radiopaque?
cementum pulp bone amalgam