When the movement of fluid molecules is streamlined, this flow is normally described as:
a. straight. c. turbulent.
b. laminar. d. aerodynamic.
ANS: B
In laminar flow, the fluid flows in discrete cylindrical layers or streamlines. With turbulent flow, the movement of fluid becomes chaotic. Straight and aerodynamic are not terms that are used to describe the way fluid moves.
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In addition to handling all types of specialty trauma, which level of trauma center provides continuing medical and public education programs?
A) IV B) III C) I D) II
Shortly after starting an IV on your patient, you note that the IV is not dripping. You have removed the constricting band, and all the clamps on the tubing are open. You note that there is minor swelling around the venipuncture site. There is no discoloration of the site, but it is cool and firm to the touch. Which of the following most likely accounts for your findings?
A) The site has become infected. B) The tip of the catheter is occluded by a blood clot. C) Fluids extravasated into the tissue surrounding the IV site. D) The tip of the catheter is occluded by a valve in the vein.
The acute breakdown of muscle fibers in crushing injury is called:
A) myoglobinemia. B) sarcoidosis. C) rouleaux formation. D) rhabdomyolysis.