A 38-year-old man struck his head on the overhead bins when the aircraft he was traveling in experienced severe turbulence. He has a laceration on his head and keeps asking, "What happened?" You should suspect:
A) increased cranial pressure.
B) concussion.
C) skull fracture.
D) severe brain damage.
B
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An anemic patient received a unit of blood. She develops fever and chills after infusion of the unit. Blood cultures of the patient and a sample of the blood unit grow the same organism
The non-lactose fermenter isolated displays the following reactions: Oxidase: purple Growth at 42°C: negative Colony under UV light: yellow Arginine: purple Motility: positive Gelatin hydrolysis: liquified Acetamide: no color change Nitrate after addition of zinc: red The organism is A) P. stutzeri. B) Pseudomonas. putida C) P. aeruginosa. D) P. fluorescens.
Which of the following is NOT a reason to terminate an exercise stress test?
A) Blood pressure drop of more than 10 mm Hg along with severe chest pain B) EKG machine malfunction C) Sustained ventricular tachycardia D) Decreasing amplitude of the QRS complex and T waves