Which of the following concentrations of epinephrine are available in injectable lidocaine solution for dental anesthesia?

a. 1:5,000
b. 1:20,000
c. 1:25,000
d. 1:100,000


It is available in an injectable form as 2% without a vasoconstrictor, 2% with a vasoconstrictor [1:100,000 (0.017 mg) and 1:50,000 (0.034 mg) epinephrine].

Health Professions

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Skin cancers are more common in those who have one or more of the following EXCEPT ________.

A. light-colored skin B. blue or green eyes C. blonde hair D. brown hair

Health Professions

Specimen collection after treatment has begun helps to identify the disease-causing organism

Indicate whether the statement is true or false

Health Professions

If a patient seems uncomfortable with being touched on the arm in a caring manner, it is best to: a. assume the patient does not like you

b. avoid being alone with this patient. c. limit communication to only what is necessary. d. ask the patient if he would prefer not to be touched.

Health Professions

A physician orders a 300 mg dose of medicine, but it is only available in 50 mg tablets. What is the correct dose?

4 tablets 5 tablets 6 tablets 8 tablets

Health Professions