Emergency Radiology MCQs

What is the primary goal of emergency radiology?
- a) To provide advanced imaging for research
- b) To deliver immediate diagnostic information for acute conditions
- c) To assess chronic diseases
- d) To plan elective surgeries
  Answer: b) To deliver immediate diagnostic information for acute conditions
Which imaging modality is most commonly used in emergency departments for trauma cases?
- a) MRI
- b) X-ray
- c) Ultrasound
- d) CT scan
  Answer: d) CT scan
What is the most critical factor to consider when imaging a patient with suspected abdominal pain?
- a) Patient age
- b) Time of day
- c) Clinical history and presentation
- d) Cost of imaging
  Answer: c) Clinical history and presentation
Which of the following conditions is best evaluated with a CT scan in the emergency setting?
- a) Soft tissue infections
- b) Fractures
- c) Pulmonary embolism
- d) Gastroesophageal reflux disease
  Answer: c) Pulmonary embolism
What is the primary advantage of using ultrasound in emergency radiology?
- a) High resolution
- b) No radiation exposure
- c) Quick imaging times
- d) All of the above
  Answer: d) All of the above
Which imaging finding is characteristic of a tension pneumothorax on a chest X-ray?
- a) Mediastinal shift to the affected side
- b) Hyperinflation of the lung
- c) Deviation of the trachea away from the affected side
- d) Fluid level in the pleural space
  Answer: c) Deviation of the trachea away from the affected side
In trauma cases, what is the most important consideration when using contrast in CT imaging?
- a) Patient comfort
- b) Allergies to contrast agents
- c) Imaging speed
- d) Cost of contrast
  Answer: b) Allergies to contrast agents
What type of fracture is most commonly associated with a fall in an elderly patient?
- a) Comminuted fracture
- b) Greenstick fracture
- c) Hip fracture
- d) Stress fracture
  Answer: c) Hip fracture
Which of the following is NOT typically indicated for a CT scan in the evaluation of head trauma?
- a) Loss of consciousness
- b) Severe headache
- c) Suspected stroke
- d) Minor scalp laceration
  Answer: d) Minor scalp laceration
What is the primary use of a FAST (Focused Assessment with Sonography for Trauma) exam?
- a) To assess for kidney stones
- b) To evaluate for free fluid in trauma patients
- c) To diagnose abdominal tumors
- d) To measure cardiac output
  Answer: b) To evaluate for free fluid in trauma patients
Which imaging modality is preferred for assessing suspected appendicitis in children?
- a) CT scan
- b) MRI
- c) Ultrasound
- d) X-ray
  Answer: c) Ultrasound
In the context of emergency radiology, what does the acronym “PE” stand for?
- a) Physical Examination
- b) Pulmonary Embolism
- c) Post-Exposure
- d) Primary Examination
  Answer: b) Pulmonary Embolism
What imaging technique is commonly used to rule out aortic dissection in an emergency setting?
- a) Chest X-ray
- b) CT angiography
- c) Ultrasound
- d) MRI
  Answer: b) CT angiography
Which of the following conditions can be diagnosed with a plain abdominal X-ray?
- a) Liver cirrhosis
- b) Bowel obstruction
- c) Cholecystitis
- d) Pancreatitis
  Answer: b) Bowel obstruction
What is the typical presentation of a rib fracture on a chest X-ray?
- a) Opacity in the lung field
- b) Visible discontinuity in the rib contour
- c) Blunting of the costophrenic angle
- d) Increased vascular markings
  Answer: b) Visible discontinuity in the rib contour
Which of the following is a potential complication of using contrast agents in imaging?
- a) Anemia
- b) Contrast-induced nephropathy
- c) Hypertension
- d) Hypotension
  Answer: b) Contrast-induced nephropathy
Which type of scan is preferred for evaluating soft tissue injuries in the emergency setting?
- a) X-ray
- b) CT scan
- c) MRI
- d) Ultrasound
  Answer: d) Ultrasound
What is the most common cause of an acute abdomen in adults?
- a) Diverticulitis
- b) Appendicitis
- c) Gallstones
- d) Pancreatitis
  Answer: b) Appendicitis
Which of the following imaging findings suggests the presence of free air in the abdomen?
- a) Air-fluid levels in the bowel
- b) Increased bowel wall thickness
- c) Crescent of radiolucency under the diaphragm
- d) Dilated bowel loops
  Answer: c) Crescent of radiolucency under the diaphragm
In emergency radiology, what does “trauma series” typically refer to?
- a) A set of X-rays including cervical, chest, and pelvis
- b) A CT scan of the abdomen and pelvis
- c) An MRI of the spine
- d) A single X-ray of the skull
  Answer: a) A set of X-rays including cervical, chest, and pelvis
What is the most appropriate imaging modality for diagnosing a stroke in a patient presenting with acute neurological deficits?
- a) CT scan
- b) MRI
- c) Ultrasound
- d) X-ray
  Answer: a) CT scan
Which imaging finding is indicative of a ruptured spleen in a trauma patient?
- a) Absence of the spleen on imaging
- b) Perisplenic fluid collection
- c) Splenomegaly
- d) Pneumoperitoneum
  Answer: b) Perisplenic fluid collection
In cases of suspected gastrointestinal bleeding, what is the role of a CT scan with contrast?
- a) To assess for kidney stones
- b) To identify the source of bleeding
- c) To evaluate heart function
- d) To rule out fractures
  Answer: b) To identify the source of bleeding
What does a “pancake” appearance of the heart on an X-ray indicate?
- a) Enlarged heart due to cardiomyopathy
- b) Cardiac tamponade
- c) Congestive heart failure
- d) Aortic dissection
  Answer: b) Cardiac tamponade
What is the preferred imaging method for suspected acute cholecystitis?
- a) CT scan
- b) X-ray
- c) MRI
- d) Ultrasound
  Answer: d) Ultrasound
Which imaging finding is characteristic of a kidney stone on a non-contrast CT scan?
- a) Increased renal size
- b) Calcified density in the renal pelvis
- c) Edema of the renal cortex
- d) Hemorrhage in the kidney
  Answer: b) Calcified density in the renal pelvis
In trauma cases, what is the significance of “mechanism of injury”?
- a) It determines the treatment plan
- b) It influences the imaging modality used
- c) It helps in assessing the potential for internal injuries
- d) It has no relevance in emergency care
  Answer: c) It helps in assessing the potential for internal injuries
Which imaging modality is commonly used to evaluate pediatric trauma due to its safety and speed?
- a) MRI
- b) CT scan
- c) Ultrasound
- d) X-ray
  Answer: c) Ultrasound
In cases of suspected myocardial infarction, what role does imaging play in the emergency setting?
- a) To rule out pulmonary embolism
- b) To assess cardiac function
- c) To confirm diagnosis and evaluate for complications
- d) To identify underlying causes of chest pain
  Answer: c) To confirm diagnosis and evaluate for complications
What is the initial imaging study typically performed in a patient presenting with acute flank pain?
- a) MRI
- b) X-ray
- c) Non-contrast CT scan
- d) Ultrasound
  Answer: c) Non-contrast CT scan

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