A child is affected by strabismus-type "lazy eye", a condition where the muscles of one eye fail to correctly position it and causes a lack of coordination between both eyes. The child's particular strabismus causes one eye to constantly look directly upward. Which extrinsic eye muscle has been weakened in this case?
A. Inferior oblique
B. Lateral rectus
C. Superior rectus
D. Inferior rectus
Answer: D
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Which vessel(s) in the diagram are the vasa recta?
a) C b) D c) E d) M e) L
A patient was recently diagnosed with cardiovascular disease. Which of the following lifestyle choices could have contributed to this poor health outcome?
A. A high-fiber diet B. A 30-year smoking habit C. Being a vegetarian D. Low saturated fat intake
Which most closely approximates the percentage of water in plasma by weight?
A. 46% B. 25% C. 92% D. 1% E. 98%
A 51-year-old man with type 2 diabetes presents with confusion, blurred vision, and signs of significant dehydration. According to the man's wife, he has had a fever and flu-like symptoms for the past few days. She further tells you that he has "stuck to his diet" as advised by his physician. His blood pressure is 90/50 mm Hg, pulse is 120 beats/min and weak, and respirations are rapid and shallow. You assess his blood glucose level, which reads "high." This patient is MOST likely:
A) producing ketones due to fat metabolism. B) experiencing hyperosmolar nonketotic coma. C) significantly acidotic and requires bicarbonate. D) hyperglycemic secondary to being dehydrated.