PHTLS Pre-Test

PHTLS Pre-Test You arrive at the scene of a motor vehicle collision in which a vehicle struck a tree. What is the best indicator of potential injury? - Speed of the Vehicle The potential for death or serious injury is greatest in which of following motor vehicle collisions? - Ejection from the vehicle Bilateral femur fractures are most often associated with which type of motorcycle crash? - Head-on impact Which is the preferred fluid for resuscitation of hemorrhagic shock in the prehospital setting? - Lactated Ringer's Which is the most common cause of upper airway obstruction in the trauma patient? - The Tongue Which is the preferred adjunct device for verifying placement of an endotracheal tube in a patient with a perfusing rhythm? - End-tidal CO2 monitoring (capnography) Which is the most important reason to maintain an open airway in the trauma patient? - Prevents hypoxemia and hypercarbia Essential airway skills include manual clearing of the airway, manual maneuvers, suctions, and _____? - OPA Your patient is a middle aged male who crashed his motorcycle. He is unresponsive. After opening the airway using a modified jaw thrust, you note the patient has respiration at a rate of 6. Auscultation reveals breath sounds are absent on the left side. What is the most appropriate next intervention? - Begin ventilation with a BVM Which best describes shock? - Generalized inadequate tissue perfusion Your patient has a deep laceration to his antecubital fossa with significant bleeding. What is the most appropriate initial action? - Apply direct pressure Hypotension of unknown etiology in a trauma patient should be assumed to result from which of the following? - Blood loss Which assessment is most beneficial in differentiating hemorrhagic shock from neurogenic shock in the prehospital setting? - Skin The body initially compensates for blood loss through activation of which of the following? - Sympathetic nervous system Medication used by trauma patients for pre-existing conditions may cause which of the following? - Beta blockers may prevent tachycardia with blood loss The target blood pressure for a trauma patient with suspected intraabdominal hemorrhage is which of the following? - 80-90 mmHG Which best explains the mechanism by which gas exchange is impaired in pulmonary contusion? - Blood in the alveoli Which of the following is a key finding that differentiates cardiac tamponade from tension pneumothorax? - Equal breath sounds Your patient is a 20 year old male who struck his head on a teammate's