AAOS 12th edition CH 30-34 Exam
Questions and Answers
A rapid, irregular pulse following blunt trauma to the chest is most suggestive of a:
Select one:
A.ruptured aorta.
B.myocardial contusion.
C.pericardial tamponade.
D.tension pneumothorax. - Correct Answers -Chapter 30, Page 1109
A 19-year-old male is unresponsive, apneic, and pulseless after being struck in the
center of the chest with a softball. Based on the mechanism of injury, what most likely
occurred?
A.Ventricular fibrillation when the impact occurred during a critical portion of the cardiac
cycle
B.Asystole secondary to massive intrathoracic hemorrhage due to traumatic rupture of
the aorta
C.Fracture of the sternum that caused a rupture of the myocardium and led to a cardiac
dysrhythmia
D.Collapse of both lungs due to fractured ribs that perforated the lung tissue and
caused cardiac arrest - Correct Answers -A.Ventricular fibrillation when the impact
occurred during a critical portion of the cardiac cycle
Chapter 30, Page 1109
The thoracic cavity is separated from the abdominal cavity by the:
If a person's tidal volume decreases, but his or her respiratory rate remains unchanged:
,A.minute volume will increase.
B.minute volume will decrease.
C.minute volume will remain unchanged.
D.excess carbon dioxide will be eliminated. - Correct Answers -B. minute volume will
decrease.
Chapter 30, Page 1095
The most critical treatment for a tension pneumothorax involves:
A. placing a bulky dressing over the affected side of the chest.
B. assisting the patient's breathing with increased tidal volume.
C. surgically removing the portion of the lung that is damaged.
D. inserting a needle through the rib cage into the pleural space. - Correct Answers -D.
inserting a needle through the rib cage into the pleural space.
Chapter 30, Page 1105
You are transporting a stable patient with a possible pneumothorax. The patient is
receiving high-flow oxygen and has an oxygen saturation of 95%. During your
reassessment, you find that the patient is now confused, hypotensive, and profusely
diaphoretic. What is most likely causing this patient's deterioration?
A.A total collapse of the affected lung
B.Hidden bleeding in the thoracic cavity
C.Compression of the aorta and vena cava
D.Blood accumulation in the pleural space - Correct Answers -C. Compression of the
aorta and vena cava
Chapter 30, Page 1105
You respond to a residence for a 40-year-old female who was assaulted by her
husband; the scene has been secured by law enforcement. Upon your arrival, you find
the patient lying supine on the floor in the kitchen. She is semiconscious with severely
labored breathing. Further assessment reveals a large bruise to the left anterior chest,
jugular venous distention, and unilaterally absent breath sounds. As your partner is
supporting her ventilations, you should:
A.insert an oropharyngeal airway.
B.obtain a set of baseline vital signs.
C.perform a focused secondary exam.
D.immediately request ALS support. - Correct Answers -D. immediately request ALS
support.
Chapter 30, Page 1105
,You have sealed the open chest wound of a 40-year-old male who was stabbed in the
anterior chest. Your reassessment reveals that he is experiencing increasing respiratory
distress and tachycardia, and is developing cyanosis. You should:
A.begin ventilatory assistance.
B.partially remove the dressing.
C.begin rapid transport at once.
D.call for a paramedic ambulance. - Correct Answers -B. partially remove the dressing.
Chapter 30, Page 1098
When assessing a patient with a hemothorax, you will most likely find:
A.jugular venous engorgement.
B.ipsilateral tracheal deviation.
C.distant or muffled heart tones.
D.signs and symptoms of shock. - Correct Answers -D. signs and symptoms of shock.
Chapter 30, Page 1105
Elevation of the rib cage during inhalation occurs when:
A 28-year-old male was struck in the chest with a baseball bat during an altercation. He
is conscious and alert and complains of severe chest pain. Your assessment reveals a
large area of ecchymosis over the sternum and a rapid, irregular pulse. In addition to
providing supplemental oxygen, you should:
A.apply an AED and assess his BP.
B.prepare for immediate transport.
C.determine if he has cardiac problems.
D.apply bulky dressings to the sternum. - Correct Answers -Chapter 30, Page 1098
, Common signs and symptoms of a chest injury include all of the following, except:
A spinal cord injury at the level of C7 would most likely result in:
A.immediate cardiac arrest.
B.paralysis of the diaphragm.
C.paralysis of the intercostal muscles.
D.paralysis of all the respiratory muscles. - Correct Answers -C. paralysis of the
intercostal muscles.
Chapter 30, Page 1094
Immediate death from blunt chest trauma following a motor vehicle crash is most often
the result of:
During your assessment of a patient with blunt chest trauma, you note that the patient
has shallow breathing and paradoxical movement of the left chest wall. You should:
A.request a paramedic to decompress the chest.
B.make note of it and continue your assessment.
C.assist ventilations with a bag valve mask.
D.apply high-flow oxygen via nonrebreathing mask. - Correct Answers -C. assist
ventilations with a bag valve mask.
Chapter 30, Page 1098
A man called EMS 12 hours after injuring his chest. Your assessment reveals a flail
segment to the right side of the chest. The patient is experiencing respiratory distress,
and his oxygen saturation is 78%. His breath sounds are equal bilaterally, and his
jugular veins are normal. You should suspect:
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