What is a murmur?
A. The abnormal collection of fluid in a body cavity or organ
B. A sound that can be heard in the lungs in association with lung disease, but may also occur when two ends of a broken bone rub together
C. An abnormal heart sound
D. The abnormal sound of friction caused by inflamed tissues rubbing together
C
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Your patient is a 15-year-old male with a stab wound along the right sternal border at the fourth intercostal space. The patient responds to painful stimuli, and shows little evidence of external bleeding. His respirations are 30, his breath sounds are clear and equal, and his radial pulse is weak and disappears on inspiration. The patient has distended jugular veins and is dyspneic. This patient is most likely suffering from ________ shock due to ________.
A) obstructive, pericardial tamponade B) hypovolemic, hemothorax C) distributive, loss of sympathetic nervous tone D) hypoxic, tension pneumothorax
The molecular "fuel" for active transport is
A) adenosine triphosphate (ATP). B) monosodium glutamate (MSG). C) lysergic acid diethylamine (LSD). D) acetylcholinesterase (ACHE).