What type of medications may lead to first-degree heart block?
a. Bronchodilators
b. Corticosteroids
c. Beta blockers
d. Xanthines
ANS: C
First-degree heart block is common following a myocardial infarction that damages the atrioven-tricular node, or it may be a complication of certain medications such as digoxin or beta blockers.
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At the scene of a multiple-casualty incident caused by a weapon of mass destruction, the EMT's first priority is:
A) identifying the agent or mechanism of the WMD. B) establishing the number of dead and injured and needed resources. C) establishing a communications system. D) ensuring the safety of yourself and your partner.
Patients with a low potassium level are said to have ____.
A. hyponatremia B. hypomagnesemia C. hypocalcemia D. hypokalemia
Sexual harassment can be between either the same sex or opposite sex employees.
Answer the following statement true (T) or false (F)
What effect does aging have on PaCO2 in the healthy adult?
a. It decreases until age 75 then levels off. b. It increases 2 mmHg per year after age 45 c. It decreases 2 mmHg per year after age 45 d. PaCO2 remains constant throughout adult life