A patient has come to the office for her first eye examination and is diagnosed as having a visual acuity of 20/40 . The patient asks the nurse what these numbers mean. What is a correct response by the nurse?
A) A person whose vision is 20/40 can see an object from 40 feet away that a person with 20/20 vision can see from 20 feet away.
B) A person whose vision is 20/40 can see an object from 20 feet away that a person with 20/20 vision can see from 40 feet away.
C) A person whose vision is 20/40 can see an object from 40 inches away that a person with 20/20 vision can see from 20 inches away.
D) A person whose vision is 20/40 can see an object from 20 inches away that a person with 20/20 vision can see from 40 inches away.
Question 2
An adult patient has undergone extensive testing that has resulted in a diagnosis of a basophilic pituitary tumor. The pathophysiological effects of the patient's tumor include excessive secretion of adrenocorticotropic hormone (ACTH).
As a result, this patient is likely to exhibit signs and symptoms that are characteristic of what endocrine disorder?
A) Addison's disease
B) Cushing's disease
C) Hyperthyroidism
D) Diabetes insipidus
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