TNCC FINAL EXAM (8TH EDITION) OPEN BOOK PRACTICE TEST: 200 COMPREHENSIVE QUESTIONS WITH VERIFIED ANSWERS & IN-DEPTH CLINICAL RATIONALES COVERING ALL CORE TRAUMA NURSING TOPICS (PRIMARY/SECONDARY SURVEYS, SHOCK STATES, NEUROLOGICAL EMERGENCIES, THORACIC/AB

TNCC FINAL EXAM (8TH EDITION) OPEN BOOK PRACTICE TEST: 200 COMPREHENSIVE QUESTIONS WITH VERIFIED ANSWERS & IN-DEPTH CLINICAL RATIONALES COVERING ALL CORE TRAUMA NURSING TOPICS (PRIMARY/SECONDARY SURVEYS, SHOCK STATES, NEUROLOGICAL EMERGENCIES, THORACIC/ABDOMINAL/PELVIC INJURIES, SPINAL MOTION RESTRICTION, AND RESUSCITATION PRIORITIES) 1. Why is a measure of serum lactate obtained in the initial assessment of the trauma patient? A) To measure oxygenation and ventilation B) To quantify the base deficit for the adequacy of cellular perfusion C) To gauge end-organ perfusion and tissue hypoxia D) To determine the underlying cause of shock Rationale: Serum lactate is a marker of anaerobic metabolism and tissue hypoperfusion. Elevated lactate indicates inadequate oxygen delivery to tissues and end-organ perfusion, helping to identify shock early. ________________________________________ 2. A trauma patient is restless and repeatedly asking "where am I?" Vital signs upon arrival were BP 100/60 mm Hg, HR 96 beats/min, and RR 24 breaths/min. Her skin is cool and dry. Current vital signs are BP 104/84 mm Hg, HR 108, RR 28 breaths/min. The patient is demonstrating signs and symptoms of which stage of shock? A) Compensated B) Progressive C) Irreversible D) Decompensated Rationale: In compensated shock, the body maintains perfusion to vital organs through compensatory mechanisms. Signs include tachycardia, tachypnea, restlessness, anxiety, and narrowing pulse pressure—all of which are present in this patient. ________________________________________ 3. An elderly patient with a history of anticoagulant use presents after a fall at home that day. She denies any loss of consciousness. She has a hematoma to her forehead and complains of headache, dizziness, and nausea. Which is the most likely cause of her symptoms? A) Epidural hematoma B) Diffuse axonal injury C) Post-concussive syndrome D) Subdural hematoma Rationale: Elderly patients on anticoagulants are at high risk for subdural hematomas even after minor falls. The slow venous bleeding allows for a lucid interval, and symptoms develop as intracranial pressure increases. ________________________________________ 4. EMS brings a patient who fell riding his bicycle. Using the American College of Surgeons screening guidelines, which assessment finding would prompt the nurse to prepare the patient for radiologic spine clearance? A) Alert with no neurologic deficits B) Multiple abrasions to the extremities C) Multiple requests of water D) Smell of alcohol on breath Rationale: The smell of alcohol indicates intoxication, which alters the patient's mental status and prevents a reliable neurologic examination. This is a criterion for radiographic evaluation of the cervical spine. ________________________________________ 5. Which of the following occurs during the third impact of a motor vehicle crash? A) The driver of the vehicle collides with the steering wheel B) The vehicle collides with a tree C) The aorta is torn at its attachment with the ligamentum arteriosum D) The airbag deploys and strikes the front seat passenger Rationale: The third impact involves injury to internal organs as they decelerate and collide with internal structures. The aorta can be torn at the ligamentum arteriosum due to shearing forces. ________________________________________ 6. A passenger is brought to the emergency department of a rural hospital following a high-speed MVC. When significant abdominal and pelvic injuries are noted in the primary survey, which of the following is the priority intervention? A) Initiate transfer to a trauma center B) Provide report to the operating room nurse C) Obtain imaging studies D) Place a gastric tube Rationale: Patients with significant abdominal and pelvic injuries require surgical capabilities available at trauma centers. Prompt transfer to a higher level of care is the priority when the facility cannot provide definitive management. ________________________________________ 7. Which of the following injuries is LEAST likely to be promptly identified? A) Spleen B) Lung C) Bowel D) Brain Rationale: Bowel injuries are often subtle and may not present with immediate signs or symptoms. They can be missed during the initial assessment, leading to delayed diagnosis. ________________________________________ 8. Patients with a crush injury should be monitored for which of the following conditions? A) Hypernatremia B) Hypercalcemia C) Dysrhythmias D) Polyuria Rationale: Crush injuries can cause rhabdomyolysis, releasing potassium and myoglobin into the bloodstream. Hyperkalemia can lead to life-threatening cardiac dysrhythmias. ________________________________________ 9. What finding raises suspicion of complete spinal cord injury? A) Weakness in the lower extremities B) Priapism C) Voluntary anal sphincter tone D) Intact reflexes distal to the injury Rationale: Priapism is a sign of autonomic dysfunction and can indicate a complete spinal cord injury. It results from loss of supraspinal inhibition. ________________________________________ 10. A patient with a complete spinal cord injury in neurogenic shock will demonstrate hypotension and which other clinical signs? A) Bradycardia and ipsilateral absence of motor function B) Tachycardia and respiratory depression C) Tachycardia and absent motor function below the level of injury D) Bradycardia and absent motor function below the level of injury Rationale: Neurogenic shock is characterized by hypotension and bradycardia due to loss of sympathetic tone. Motor function below the level of injury is absent in complete spinal cord injury. ________________________________________ 11. You are caring for a patient who was thrown from a bike and was not wearing a helmet. While performing the head-to-toe assessment, you note clear drainage from the right ear. Which of the following is the most appropriate next step? A) Clean the ear with a cotton-tipped applicator B) Pack the ear with gauze C) Notify the physician D) Document and continue the exam Rationale: Clear drainage from the ear following head trauma suggests a basilar skull fracture with cerebrospinal fluid leak. The physician must be notified immediately.