A drug that binds to a receptor, and produces a stimulatory response that is similar to what an endogenous substance would have done if it were bound to the receptor is known as a(n):
A) receptor
B) agonist
C) antagonist
D) agonist-antagonist
B) agonist
An agonist is a drug that binds to a receptor, and produces a stimulatory response that is similar to what an endogenous substance would have done if it were bound to the receptor. For example, adrenaline is an agonist at beta-adrenoceptors. When adrenaline binds to beta-adrenoceptors in the heart, the heart rate increases. Agonists drugs have affinity, which allows them to bind to receptors, as well as high intrinsic activity, which allows them to activate the functions of receptors.
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Ingestion of a dental object could result in:
A. abscesses. B. collapsed lung. C. stupor. D. diaphoresis.
Which root operation is described as altering the route of passage of the contents of a tubular body part?
A. Alteration B. Bypass C. Change D. Dilation
When using a brushless/waterless method to cleanse the hands and arms, personnel should wash their hands before applying the antiseptic solution
Indicate whether the statement is true or false.
To prevent introducing a contaminating substance into a trace-element collection tube, it is suggested that the phlebotomist
A. collect the trace-element tube last in the order of draw B. draw it by itself using a syringe or evacuated tube system C. use a syringe and transfer blood into the royal blue tube test D. use only a royal blue short-draw tube with heparin or EDTA