PHTLS Pretest 8th Edition Questions and answers

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? Pg 80 Speed of the vehicle The potential for death or serious injury is greatest in which of the following motor vehicle collisions? Pg 85-86 Ejection from vehicle Bilateral femur fractures are most often associated with which type of motorcycle crash? Pg 88-89 Head-on impact Which is the preferred fluid fro resuscitation of hemorrhage shock in the prehospital setting? Pg 62-63 Lactated Ringer's Which is the most common cause of the upper airway obstruction in the trauma patient? Pg 175 Tongue Which is the preferred adjunct device for verifying placement of an endotracheal tube in a patient with a perfusing rhythm? Pg 185 End-tidal CO2 monitoring (Capnography) Which is the most important reason to maintain open airway in the trauma patient? Pg 52-54 Prevents hypoxemia and hypercarbia Essential airway skills include manual maneuvers, suctioning and which of the following? Pg 177 Oropharyngeal airway 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 respirations at a rate of 6. Auscultation reveals breath sounds are absent on the left side. Which of the following is the most appropriate next intervention? Pg 202 Begin ventilation with a BVM Which best describes shock? Pg 55 Generalized inadequate tissue perfusion Your patient has a deep laceration to his antecubital fossa with significant bleeding. What is the most appropriate initial action? Pg 142 Apply direct pressure Hypotension of unknown etiology in a trauma patient should be assumed to result from which of the following? Pg 62 Class 3 hemorrhage Blood Loss Which assessment is most beneficial in differentiating hemorrhage shock from neurogenic shock in the prehospital setting? Pg 63 Skin The body initially compensates for blood loss through activation of which of the following? Pg 59 Sympathetic nervous system Medication used by trauma patients for pre-existing conditions may cause which of the following? Pg 72 Beta blockers may prevent tachycardia with blood loss The target blood pressure for a trauma patient suspected intra-abominal hemorrhage is which of the following? Pg 241 80-90 mm HG Which best explains the mechanism by which gas exchange is impaired in pulmonary contusion? Pg 340, 342 Blood in alveoli Which of the following is a key finding that differentiates cardiac tamponade from tension pneumothorax? Pg 151, 157, 223, 225 Equal breath sounds Your patient is a 20 year old male who struck his head on a teammate's knee while diving to catch a football. He was not wearing a helmet. He demonstrates decerebrate posturing and has a GCS score of 4. His heart rate is 58, blood pressure 180/102 and his left pupil is dilated. What is the best ventilation rate to use when managing this patient? Pg 281 20 breaths per minute