PHTLS Pretest 8th Edition Fully solved 2023

PHTLS Pretest 8th Edition Fully solved 2023You 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 - correct answer Speed of the vehicle The potential for death or serious injury is greatest in which of the following motor vehicle collisions? Pg 85-86 - correct answer Ejection from vehicle Bilateral femur fractures are most often associated with which type of motorcycle crash? Pg 88-89 - correct answer Head-on impact Which is the preferred fluid fro resuscitation of hemorrhage shock in the prehospital setting? Pg 62-63 - correct answer Lactated Ringer's Which is the most common cause of the upper airway obstruction in the trauma patient? Pg 175 - correct answer Tongue Which is the preferred adjunct device for verifying placement of an endotracheal tube in a patient with a perfusing rhythm? Pg 185 - correct answer End-tidal CO2 monitoring (Capnography) Which is the most important reason to maintain open airway in the trauma patient? Pg 52-54 - correct answer Prevents hypoxemia and hypercarbia Essential airway skills include manual maneuvers, suctioning and which of the following? Pg 177 - correct answer 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 - correct answer Begin ventilation with a BVM Which best describes shock? Pg 55 - correct answer 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 - correct answer 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 - correct answer Blood Loss Which assessment is most beneficial in differentiating hemorrhage shock from neurogenic shock in the prehospital setting? Pg 63 - correct answer Skin The body initially compensates for blood loss through activation of which of the following? Pg 59 - correct answer Sympathetic nervous system Medication used by trauma patients for pre-existing conditions may cause which of the following? Pg 72 - correct answer 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 - correct answer 80-90 mm HG Which best explains the mechanism by which gas exchange is impaired in pulmonary contusion? Pg 340, 342 - correct answer Blood in alveoli Which of the following is a key finding that differentiates cardiac tamponade from tension pneumothorax? Pg 151, 157, 223, 225 - correct answer 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?