EMT trauma practice questions

B. Control the external bleeding with direct pressure and a tourniquet if needed The key clues are the patient has bright red bleeding from a deep thigh laceration, pale cool skin, a rapid pulse, and delayed capillary refill following a motorcycle crash. These findings indicate life-threatening external hemorrhage with early signs of hemorrhagic shock. The EMT should immediately control the bleeding using direct pressure and apply a tourniquet if direct pressure does not rapidly control the hemorrhage, while simultaneously treating for shock and preparing for rapid transport. Early hemorrhage control is one of the most important interventions for improving survival in trauma patients. When severe external bleeding is accompanied by signs of hypoperfusion, controlling the hemorrhage takes priority because stopping blood loss is the fastest way to improve tissue perfusion.

D. Open the airway while maintaining manual cervical spine stabilization, assess breathing, and provide ventilatory support as needed. The key clues are the patient responds only to painful stimuli, has slow irregular respirations, a weak carotid pulse, and sustained a high-energy motorcycle crash with a mechanism suggesting possible cervical spine injury. These findings indicate an immediate life threat involving the airway and breathing that must be addressed before treating extremity injuries or obtaining additional assessment information. The EMT should manually stabilize the cervical spine, open the airway using the appropriate technique, assess the adequacy of breathing, and begin positive-pressure ventilation if respirations are inadequate. Although the femur injury and external bleeding require prompt attention, inadequate oxygenation and ventilation will cause death much more quickly than moderate extremity hemorrhage. In every trauma patient, the injury that will kill the patient first—not the injury that looks the worst—determines the priority of care.

B. Place a rigid eye shield over the injured eye, cover the uninjured eye, minimize eye movement, and provide prompt transport. The key clues are the high-velocity mechanism from a power grinder, severe eye pain, blurred vision, tearing, and the inability to determine whether the object is superficial or penetrating. Because globe penetration cannot be excluded, the EMT should avoid manipulating, irrigating, or placing pressure on the injured eye. A rigid eye shield protects the injured eye from additional trauma, and limiting movement of both eyes helps reduce movement of the injured eye. The patient requires prompt transport for definitive evaluation. When an eye injury may involve penetration, protect the globe from pressure and movement rather than attempting to remove or irrigate the object.

B. Maintain stabilization; leave helmet and pads unless they interfere with care. The key clues are a significant axial-load mechanism, neck pain with neurologic symptoms, properly fitted protective equipment, and a currently patent airway. These findings require spinal motion restriction and careful handling while the EMT determines whether the equipment interferes with airway management, assessment, or safe transport. Properly fitted helmet and shoulder pads may help maintain alignment and should not be removed unnecessarily in the field. If equipment removal becomes necessary, trained rescuers should coordinate the procedure while maintaining manual stabilization. With suspected spinal injury, maintain stabilization and avoid unnecessary equipment removal when properly fitted gear does not interfere with airway management or patient care.

D. Primary blast injury caused by the pressure wave affecting the lungs The key clues are close exposure to an explosion followed by respiratory distress, hypoxia, chest discomfort, and abnormal breath sounds without an obvious external mechanism explaining the findings. Primary blast injuries result from the sudden pressure wave and particularly affect air-containing structures such as the lungs, middle ears, and gastrointestinal tract. Pulmonary blast injury can damage alveoli and pulmonary capillaries, producing respiratory compromise even when external injuries appear relatively minor. Symptoms can also evolve after the initial explosion, making repeated respiratory assessment important. After significant blast exposure, serious internal lung injury may be present even when there is little evidence of external trauma.

C. Tertiary blast injury from the patient being thrown into a solid object The key clues are that the explosion physically threw the patient approximately 10 feet and the patient then struck a concrete wall. Tertiary blast injuries occur when blast energy displaces the body and causes impact with the ground, structures, vehicles, or other objects. These impacts can produce significant blunt trauma, including head, spinal, thoracic, abdominal, and orthopedic injuries. The EMT should evaluate the patient according to the significant mechanism of injury and maintain a high index of suspicion for injuries that may not be immediately apparent. Tertiary blast injury occurs when the blast turns the patient into the moving object, producing injury when the body strikes another surface.

C. The patient may have a worsening traumatic brain injury with increasing intracranial pressure. The key clues are a significant head injury followed by worsening headache, vomiting, increasing confusion, and a progressively declining level of consciousness. Intracranial bleeding or cerebral swelling can increase pressure within the fixed space of the skull, potentially reducing cerebral perfusion and compressing brain tissue. Continued deterioration can eventually compromise protective airway reflexes, ventilation, and vital neurologic functions. The EMT should frequently reassess neurologic and respiratory status, protect the airway as needed, prevent hypoxia and hypotension, and provide rapid transport. Progressive neurologic deterioration after head trauma should raise immediate concern for worsening TBI and increasing intracranial pressure.

C. Stabilize the object in place and control bleeding around the wound. The key clues are an impaled object that remains embedded, manageable bleeding, and intact distal neurovascular function. The EMT should generally leave the object in place, control bleeding around it, and use bulky dressings to prevent movement without placing pressure directly on the object. Distal pulse, motor function, and sensation should be reassessed because swelling or movement can compromise circulation or nerves. Impaled objects are usually stabilized in place while bleeding and distal neurovascular status are carefully monitored.

A. Handle the crown and preserve the tooth in an appropriate storage medium. The key priority is preserving the delicate periodontal ligament cells on the root that may allow successful reimplantation. The EMT should handle an avulsed permanent tooth only by the crown and avoid touching or scrubbing the root. Depending on protocol and available resources, an appropriate storage medium may include a commercial tooth-preservation solution, cold milk, or normal saline. Prompt dental evaluation is important because the likelihood of successful reimplantation decreases as time outside the socket increases. Protect the root, prevent the tooth from drying, and obtain definitive dental care as quickly as possible.

A. Apply a tourniquet proximal to the wound and tighten it until the bleeding stops. The key clues are bright red, spurting blood from a deep upper-arm wound, indicating life-threatening extremity hemorrhage. A tourniquet provides rapid and effective control of severe extremity bleeding by compressing the vessels supplying the injured area. It should be placed proximal to the wound and tightened until the bleeding stops, with the application time documented. Rapid tourniquet application can prevent progression to hemorrhagic shock by stopping life-threatening blood loss before a significant circulating volume is lost.

B. Apply an occlusive dressing over the chest wound while continuing the primary assessment. The key clues are the penetrating wound to the chest and air being heard and felt moving through the wound with each breath. These findings indicate an open chest wound that can allow air to move between the atmosphere and the pleural space, potentially interfering with normal lung expansion. The EMT should promptly cover the wound with an appropriate occlusive dressing, preferably a commercial vented chest seal when available, while continuing the primary assessment. The patient's respiratory status must then be reassessed frequently because worsening respiratory distress may indicate developing tension physiology. Immediate sealing of the open chest wound limits additional air entry while ongoing reassessment identifies potentially life-threatening deterioration.

C. Tension pneumothorax causing progressively impaired ventilation The key clues are significant chest trauma, unequal chest rise, absent breath sounds on one side, and progressively increasing respiratory distress. A tension pneumothorax occurs when air accumulates under pressure in the pleural space, collapsing the affected lung and progressively interfering with ventilation and circulation. The worsening nature of the patient's respiratory condition makes tension physiology more concerning than an uncomplicated pneumothorax. Progressive respiratory deterioration with unilateral absent breath sounds after chest trauma should raise strong suspicion for tension pneumothorax.