Which of the following would constitute a closed kinematic chain activity of the left shoulder complex?
a. Using your left arm to push yourself out of a chair
b. Throwing a Frisbee with your left hand
c. Combing your hair with your left hand
d. Waving with your left hand
ANS: A
Pushing yourself out of a chair using your arm would be considered a closed kinematic chain
activity. Because the arm is bearing weight through the arms of the chair, which are in contact with
the ground, this would mean that the distal segment is fixed, and the body is moving about this
fixed segment.
You might also like to view...
A 42-year-old male was involved in a fight and was stabbed in the right lateral chest. The knife is still impaled, and he is complaining of shortness of breath. When he speaks he gurgles and blood drains from his mouth. His respirations are labored and his radial pulse is weak. Which one of the following should you do first?
A) Suction the blood from the airway. B) Provide positive pressure ventilation. C) Stabilize the knife with bulky dressings. D) Remove the knife and seal the injury with a dressing.
You have arrived on the scene of an explosion in a warehouse used to store fertilizers. A paramedic, who has already triaged the nine patients involved, directs you to a young man sitting under a tree. The man states that he is having excruciating ear pain. The initial assessment and rapid trauma assessment reveal no obvious injuries. Given this presentation, the EMT would recognize the injury was likely sustained:
A) From the noise of the explosion B) During the primary blast phase C) After the secondary blast phase D) As a result of exposure to superheated air
What term is used to describe a chloride concentration that is below normal in the blood serum?
a. Hypokalemia b. Hyponatremia c. Hypocalcemia d. Hypochloremia
In the setting of uncontrolled hemorrhage, liberal fluid administration can produce several consequences that may ultimately worsen the patient's outcome.
Answer the following statement true (T) or false (F)