| A | B |
|---|
| bag-valve-mask device (BVM) | An oxygen delivery device comprised of a self-inflating bag, face mask, one-way valve, and oxygen reservoir |
| ball-and-socket joint | Cup-shaped surface of a bone that joins with the ball-shaped head of a long bone |
| bandage | Holds a dressing in place (self-adherent, gauze rolls, triangular, air splint) |
| barotrauma | Ruptured lung resulting from over-agressive ventilations |
| base station | Radio used for central dispatch operations and coordination of energemcy services in an EMS communication system |
| battery | Actual offensive physical contact or touching of another person without their consent; usng combined with a charge of assault, particularly if threatening words were exchanged between the parties |
| battle's sign | Bruising behind the ears or mastoid process due to basilar skull fracture |
| behavior emergency | A situation in which the patient exhibits behavior that others consider unacceptable or intolerable |
| bilateral | On both sides of the midline (right and left sides) |
| blood pressure | Force of the blood on the vessels; systolic pressure is the working pressure; diastolic pressure is the resting pressure |
| blunt trauma | Injury caused by non-penetrating forces |
| body mechanics | Moving your body correctly while lifting and moving to prevent injury |
| body substance isolation (BSI) precautions | Equipment and standards designed to prevent the spread of communicable diseases |
| brachial pulse | The flow of blood through the brachial artery, in the medial aspect of the upper arm |
| bradycardia | Slow heart rate |
| breech presentation | Abnormal delivery in which the infant's buttocks or lower extremities are the presenting part; places infant at high risk for prolapsed cord and osygen deprivation |
| bronchi | Plural of bronchus; the two major subdivisions of the trachea |
| bronchioles | Subdivisions fo the bronchi; terminate in the alveoli |
| bronchoconstriction | Narrowing of the air passageways due to constriction of the smooth muscle of the bronchi and bronchioles |
| bronchodilator | Drug that relaxes the smooth muscle of the bronchi and bronchioles, reversing bronchoconstriction |
