________ is a refractive disorder in which irregularities in the curvature of the cornea cause light not to focus on the retina but to spread out over an area, causing overall blurring of vision.

You are on the scene of a 68-year-old male patient complaining of severe chest pain for the last 20 minutes. He has a previous history of myocardial infarction and states it feels "just like the last time." You have applied oxygen and assisted him in administering aspirin and nitroglycerin with no reduction in the chest pain. Your nearest facility is 5 minutes away, a Level III Trauma Center is

10 minutes away, and a hospital with cardiac catheterization capabilities is 20 minutes away. The patient is requesting to be transported to his cardiologist's hospital, which is 30 minutes away. Which hospital is the best destination? A) The trauma center B) The hospital the patient requests C) The nearest hospital with cardiac catheterization D) The nearest facility

The aim of urine production is to maintain:

A) metabolism B) excretion C) homeostasis D) purity