The ____ allows the eye to focus on images.

A. pupil
B. cornea
C. lens
D. retina


C. lens

Health Professions

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Which of the following must be done in order to create a standard curve from a single vial of a known concentration of glucose?

A) Additional known quantities of glucose must be added to the vial. B) Other vials of known glucose concentrations must be obtained. C) Serial dilutions must be made. D) The vial must be tested daily for 10 days.

Health Professions

What size of needle is used for collecting donor units of blood?

A. 25-gauge B. 23-gauge C. 21-gauge D. 18-gauge

Health Professions

Describe the purpose of the Food and Drug Administration

Health Professions

If a patient remains comatose following return of spontaneous circulation, you should:

A) provide mild hyperventilation. B) begin hypothermia treatment. C) immediately obtain a 12-lead. D) begin an infusion of dopamine.

Health Professions