A nurse is admitting a patient for outpatient eye surgery. The nurse routinely administers preoperative medications for eye surgery and is aware that an increased dosage of a mydriatic is likely when given to a member of what ethnic group?
A) African Americans
B) German Americans
C) Irish Americans
D) Scandinavian Americans
A
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African Americans with dark eyes usually require an increased dosage and may have a prolonged time to peak effect. The need for an increased dose appears to be related to the amount of pigment in the person's eyes because people with darker-pigmented eyes require a higher dose. German, Irish, and Scandinavian Americans generally have less pigmentation in their eyes and are therefore less likely to need a greater dose.
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