Question 1

You are managing a patient with a large flail segment to the right lateral chest. As such, you should recognize that the immediate threat to life is:

Accepted Answer

In a patient with a large flail segment to the right lateral chest, the immediate threat to life would be hypoxia due to the potential for impaired gas exchange and compromised ventilation. This is a result of the flail segment causing a paradoxical chest movement leading to decreased pulmonary compliance and lung volume. It is important to address this issue promptly to prevent further complications such as respiratory failure, cardiac arrest, or secondary injuries.

Question 2

A patient has sustained an injury to his mediastinum. Based on the anatomy of his chest, which one of the following structures has been injured?

Accepted Answer

The mediastinum is the central compartment of the thoracic cavity that contains several structures such as the heart, great vessels, trachea, esophagus, and lymph nodes. Of the given options, only the esophagus lies in the mediastinum. The diaphragm, lungs, and bronchi are not located within the mediastinum. Therefore, the patient's injury is most likely to involve the esophagus.

Question 3

You have applied a nonporous dressing to a stab wound on a patient's chest. The Emergency Medical Responder assisting you asks you why the dressing was taped on three sides and not all four. Your best response is that taping the dressing on three sides:

Accepted Answer

Taping the dressing on three sides allows trapped air to escape on exhalation, preventing tension pneumothorax (where air is trapped inside the chest and cannot escape on exhalation, causing the lung to collapse). Taping the dressing on all four sides would prevent any air from escaping, potentially causing more harm than good.

Question 4

During the secondary assessment, the EMT notes instability and a flail segment to a patient's lower left lateral chest. The EMT would immediately:

Accepted Answer

The best choice would be to stabilize the flail segment with the EMT's hand. A flail segment occurs when two or more adjacent ribs are fractured in two or more places and become unattached, causing a portion of the chest wall to move independently from the rest of the chest during breathing. This can lead to respiratory distress and inadequate ventilation. By stabilizing the flail segment with the hand, the EMT can provide support for the chest wall during breathing and potentially prevent further injury or deterioration of the patient's condition.

Question 5

When assessing a patient who sustained blunt trauma to the chest, what assessment finding is most indicative of an injury to the lung?

Accepted Answer

Gasping for air or shortness of breath, especially after a few words or a sentence, is a clinical manifestation of lung injury or pulmonary contusion. This is due to the accumulation of fluid and blood in the lung tissue, which impedes oxygen exchange. Elevated heart rate and blood pressure, respiratory rate, and chest contusions are not specific signs of a lung injury.

Question 6

A patient with blunt chest wall trauma has a flail section to her chest. She is conscious and confused and breathing rapidly and shallowly. After manually stabilizing the flail section of the chest wall, the EMT best treats this condition by:

Accepted Answer

A flail chest segment is a paradoxical movement of a segment of the chest wall in which the segment moves inward during inspiration and outward during expiration. This results in ineffective ventilation and inadequate oxygenation. The best treatment for a flail chest is positive pressure ventilation, which can help improve ventilation and oxygenation. Applying ice packs or inserting an oropharyngeal airway are not appropriate treatments for this condition. Administering oxygen through a nonrebreather face mask may help improve oxygenation, but it will not address the underlying issue of ineffective ventilation.

Question 7

You are on the scene of a shooting. Your assessment reveals a 23-year-old male who has been shot twice. The first wound is to the left lower quadrant of the abdomen and is actively bleeding. The second wound is to the left lateral chest and bubbles every time the patient takes a breath. Your immediate action would be:

Accepted Answer

The chest wound is more life-threatening than the abdominal wound, as it is causing a pneumothorax (air in the chest cavity). Covering the chest wound with a gloved hand will help prevent further air from entering the chest cavity and possibly causing a tension pneumothorax. Direct pressure should not be applied to an abdominal gunshot wound as it could cause more damage to internal organs. Oxygen should also be given, but covering the chest wound takes priority in this situation.

Question 8

A paramedic has asked that you apply a dressing over a sucking chest wound. What is best to cover the injury?

Accepted Answer

Vaseline gauze is best for covering a sucking chest wound because it can create an airtight seal, preventing air from entering the chest cavity while allowing the wound to breathe from the inside out, which is crucial in managing this type of injury.

Question 9

A 42-year-old male was involved in a fight and was stabbed in the right lateral chest. The knife is still impaled, and he is complaining of shortness of breath. When he speaks he gurgles and blood drains from his mouth. His respirations are labored and his radial pulse is weak. Which one of the following should you do first?

Accepted Answer

The first priority is to clear the airway to ensure the patient can breathe, so suctioning the blood is the immediate action needed.

Question 10

A 39-year-old male has a single stab wound to the anterior chest. When notifying the emergency department, you inform them that the patient is suffering from a/an:

Accepted Answer

A single stab wound to the anterior chest would result in an open chest injury, which is characterized by a wound that penetrates the chest wall and can lead to tension pneumothorax, hemothorax, or both. Flail chest refers to a condition where consecutive ribs are broken in multiple places leading to a segment of the chest wall that moves independently of the rest of the chest. Evisceration refers to the protrusion of internal organs through a wound, and laceration refers to a deep cut or tear in the skin or flesh.

Question 11

A construction foreman was stabbed with a screwdriver in the right anterior chest by an angry employee. Prior to your arrival, he removed the screwdriver. He is alert and oriented and complaining of pain to the injury site. Your primary assessment reveals an open airway, adequate breathing, and strong radial pulse. Based on these findings, which of the following would be done first?

Accepted Answer

Given the patient is alert, has an open airway, and is breathing adequately, the next step is to evaluate the patient's oxygen saturation (SpO₂) to ensure they are receiving enough oxygen. This is crucial in trauma cases to monitor for potential respiratory compromise. The other options are not immediately necessary based on the given assessment findings.

Question 12

An Emergency Medical Responder asks you to explain a pneumothorax. You would explain that a pneumothorax occurs when:

Accepted Answer

A pneumothorax occurs when air accumulates in the pleural space around the lung, causing a portion of the lung to collapse. This can be caused by trauma, such as a puncture or broken rib, or it can happen spontaneously in some people with lung disease. It can lead to difficulty breathing and can be life-threatening if not treated promptly.

Question 13

A patient has been shot in the chest with a rifle. Assessment reveals a deteriorating level of consciousness and inadequate breathing. Positive pressure ventilation is being administered, and the entrance wound, located midclavicular at the second intercostal space on the left side of the chest, has been covered. Your next action would be to:

Accepted Answer

With a gunshot wound to the chest, finding an exit wound is crucial as it may be indicative of the bullet's trajectory and the structures it may have damaged. This information can be vital in determining the patient's condition and necessary treatment. Checking blood pressure and obtaining vital signs are important interventions but should be done after assessing the extent of the injury. Placing a cervical collar is not necessary in this scenario unless there is evidence of a cervical spine injury.

Question 14

A 23-year-old female has been involved in a serious motor vehicle collision. Which assessment finding best indicates that she has a flail segment?

Accepted Answer

Paradoxical chest wall movement is the classic finding indicating a flail segment. It occurs when a portion of the chest wall moves in the opposite direction of normal during inspiration and expiration due to the loss of support from underlying ribs. Shortness of breath, intense pain with inspiration, and decreasing SpO₂ readings may also be seen in a patient with a flail segment, but paradoxical chest wall movement is the most specific finding.

Question 15

Which of the following best describes a flail segment?

Accepted Answer

A flail segment refers to two or more adjacent ribs that have been fractured in two or more places, causing a free-floating segment of the chest wall. This can result in paradoxical movement of the chest during breathing as the flail segment moves in the opposite direction to the rest of the chest wall.

Question 16

When assessing a patient, which sign or symptom is most indicative of a pneumothorax?

Accepted Answer

Decreased breath sounds to one side of the lung can indicate a collapsed lung or pneumothorax. Intense pain with each inspiration may also be present, but this symptom is not as specific to pneumothorax as decreased breath sounds. A low SpO2 reading on high-concentration oxygen and crepitus/instability to the chest wall are not necessarily indicative of pneumothorax.

Question 17

An adult female is found unresponsive after being shot in the chest. Which statement made by your partner is of most concern?

Accepted Answer

Difficulty in ventilating the patient indicates an obstructed or compromised airway, which could be life-threatening. This statement should be the most concerning to the responder. A) is expected in gunshot wounds, and B) and C) are not immediately life-threatening issues.

Question 18

A confused 62-year-old female fell at home, hitting the side of a table with her chest. Assessment reveals instability to the left lateral chest accompanied by minor bruising in the same area. She complains of intense pain every time she breathes. Her airway is patent, breathing is rapid and shallow, and skin warm and nondiaphoretic. Vital signs are pulse 112, respirations 24, and blood pressure 132/64 mmHg with SpO₂ at 90%. Breath sounds are shallow but equal to both lungs. Based on those findings, you should treat this patient for what life-threatening condition?

Accepted Answer

The patient's symptoms, including intense pain with breathing, rapid and shallow breathing, and a SpO₂ at 90%, indicate hypoxia, which is a condition where there is insufficient oxygen reaching the tissues.

Question 19

Which statement made by an EMT demonstrates an understanding of chest trauma?

Accepted Answer

Closed chest injuries, often caused by blunt trauma, can be just as serious as open chest injuries due to potential internal damage and complications like pneumothorax or cardiac tamponade.

Question 20

An unrestrained 32-year-old female motorist hit a utility pole head on at 45 mph. The car sustained extensive damage. She has an open airway, breathing poorly at 32 breaths per minute, and is responsive to painful stimuli. The radial pulse is rapid and weak, and her skin is cool and cyanotic. Breath sounds are decreased on the right side. Emergency Medical Responders are maintaining manual in-line stabilization. Your next action would be to:

Accepted Answer

Given the patient's condition—breathing poorly, rapid and weak pulse, cool and cyanotic skin, and decreased breath sounds on one side—starting positive pressure ventilation is the immediate next step to address her inadequate ventilation and potential hypoxia.

Quiz 34: Chest Trauma