You determine she has a positive Allen's test. You are inserting an arterial line in Mr. Johns. Upon advancing the guidewire you feel resistance. He is complaining of numbness and tingling around his fingers and hand. You notice his extremity becoming very pale and are unable to locate a pulse.
Capillary refill is poor.
Mr. Thomas, a 26 year old construction worker enters your emergency room with a 3cm laceration to his left leg after falling on a broken windowpane. He denies any allergies. The wound appears clean with minimal tissue damage. Johnny Smith is a 4 year old who fell from his bicycle sustaining a 5cm laceration to his left knee. He is very upset and is sitting in the room crying.