Which of the following is true of xanthines?
A) Increase levels of energy-producing cyclic adenosine monophosphate (cAMP).
B) Increase production of phosphodiesterase (PDE)
C) Cause drowsiness when used with herbs such as St. John's Wort
D) Have a sympathomimetic action
A
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Which of the following cause(s) injury by inducing liquefaction necrosis?
A) Caustics B) Alkalis C) Emulsifiers D) Acids
Which of the following would MOST likely be the cause of a patient burn from alternate exit pathway of ESU current?
a. fingernail bed under the pulse oximeter b. placement site of electrocardiogram (ECG) leads c. skin over a bony prominence such as the scapula d. soles of the feet under the sequential pulsing pads
For a chemical reaction to take place between reactants, they must:
A. collide. B. collide with proper orientation and have sufficient energy to react. C. have a catalyst present. D. be at a very low temperature.
Online medical ________ are used to educate physicians concerning conditions and treatment regimes.
A. Companions B. Games C. Databases D. Courses