Trauma Practice Questions

Q: What is the appropriate treatment modality for an 8-year-old child with a unilateral condylar fracture presenting with chronic pain and normal occlusion?

Active jaw movements. **Explanation:** The management of pediatric condylar fractures is primarily **conservative**, prioritizing the restoration of function and the prevention of ankylosis over anatomical reduction. **Why "Active Jaw Movements" is correct:** In children, the condyle has a high osteogenic potential and remarkable remodeling capacity. For a patient with **normal occlusion**, the goal is to maintain the range of motion. Early mobilization (active jaw exercises) prevents the formation of intra-articular adhesions and promotes functional remodeling of the condylar head. Since the occlusion is stable, there is no need for immobilization. **Analysis of Incorrect Options:** * **A & B (IMF for 2 or 4 weeks):** Intermaxillary fixation (IMF) is generally avoided in children unless there is significant malocclusion. Prolonged immobilization (especially 4 weeks) in a growing child significantly increases the risk of **temporomandibular joint (TMJ) ankylosis** and growth disturbances. If IMF is used for minor occlusal discrepancies, it is limited to a very short period (7–10 days). * **D (Open Reduction):** Surgical intervention is rarely indicated in children due to the risk of damaging the growth center and the high success rate of conservative management. It is reserved for absolute indications like displacement into the middle cranial fossa or mechanical interference with opening. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of mandible fracture in children:** Condyle (due to the high vascularity and thin neck). * **Treatment of choice for pediatric condylar fractures:** Conservative (Observation + Soft diet + Active mobilization). * **Complication of neglected/improperly treated fracture:** TMJ Ankylosis, leading to "Bird-face deformity" (micrognathia). * **Remodeling:** The younger the child, the greater the potential for the condyle to "re-grow" and adapt to its functional position.

Q: A rugby player hit his head on the post whilst involved in a tackle. He was unconscious for 5 min but regained full consciousness and sat on the sideline until the end of the game. He was then noted to be drowsy and over the past 30 min became confused and no longer obeyed commands. Most likely diagnosis is:

Extradural hematoma. ### Explanation The clinical presentation described is a classic textbook case of an **Extradural Hematoma (EDH)**. **1. Why Extradural Hematoma is Correct:** The hallmark of this case is the **"Lucid Interval."** This refers to the period where the patient regains consciousness (after the initial concussion) and appears normal before secondary neurological deterioration occurs. * **Mechanism:** Usually caused by a blow to the temporal region leading to a fracture and rupture of the **Middle Meningeal Artery**. * **Pathophysiology:** As the arterial bleed expands, it strips the dura away from the skull, eventually causing increased intracranial pressure and brain herniation, leading to the sudden onset of drowsiness and confusion. **2. Why the Other Options are Incorrect:** * **Subdural Hematoma (SDH):** Typically results from the tearing of **bridging veins**. It usually presents with a more gradual decline in consciousness and is more common in elderly patients or those with significant deceleration injuries. It lacks the classic rapid "lucid interval" seen here. * **Subarachnoid Hemorrhage:** Usually presents with a "thunderclap headache" (the worst headache of life) and meningeal irritation (neck stiffness), rather than a post-traumatic lucid interval. * **Cerebral Edema:** This is a secondary process following injury. While it causes increased ICP, it does not typically follow the specific "unconscious-conscious-unconscious" pattern as distinctly as an EDH. **3. NEET-PG High-Yield Pearls:** * **Imaging:** On CT scan, EDH appears as a **Biconvex (Lentiform)**, hyperdense, extra-axial collection that does *not* cross suture lines. * **Source of Bleed:** Middle Meningeal Artery (most common). * **Clinical Sign:** A dilated pupil on the side of the lesion (ipsilateral) due to CN III compression is a late sign of herniation. * **Management:** Urgent neurosurgical evacuation (burr hole or craniotomy) is life-saving.

Q: A 48-year-old male patient, a victim of a road traffic accident (RTA), presents to the emergency room. Which of the following is NOT included in the primary survey of this trauma patient?

CT Abdomen for identification of bleeding. The **Primary Survey** in trauma management follows the **ABCDE** protocol, designed to identify and treat life-threatening injuries sequentially. The correct answer is **C (CT Abdomen)** because it is part of the **Secondary Survey** or a definitive diagnostic phase, not the initial stabilization. ### Why CT Abdomen is the Correct Answer The primary survey focuses on immediate resuscitation. A CT scan requires moving a potentially unstable patient to a radiology suite, which violates the principle of "treating as you go." In the primary survey, internal bleeding is assessed using bedside tools like **FAST (Focused Assessment with Sonography for Trauma)** or **DPL (Diagnostic Peritoneal Lavage)**, which do not require shifting the patient. ### Explanation of Incorrect Options * **D. Checking the Airway (A):** This is the first step of the primary survey. Ensuring a patent airway with cervical spine protection is the highest priority. * **A. Measuring Blood Pressure (C - Circulation):** Assessing hemodynamic status via BP, pulse, and capillary refill is critical to identify shock during the "Circulation" phase. * **B. Exposing the body (E - Exposure):** The patient must be fully undressed to identify occult injuries (e.g., back wounds or fractures) while maintaining normothermia. ### High-Yield Clinical Pearls for NEET-PG * **ABCDE Sequence:** **A**irway (with C-spine protection), **B**reathing, **C**irculation (hemorrhage control), **D**isability (GCS/Pupils), **E**xposure/Environment. * **Adjuncts to Primary Survey:** Include FAST, Chest X-ray (AP view), Pelvic X-ray, and ABG. * **Golden Rule:** Never send an unstable patient for a CT scan. * **Secondary Survey:** Only begins *after* the primary survey is complete, vitals are stabilized, and the "head-to-toe" examination is initiated.

Q: What is a suprazygomatic fracture?

Le Fort III fracture. **Explanation:** The **Le Fort III fracture**, also known as **Craniofacial Dysjunction**, is termed a **suprazygomatic fracture** because the fracture line passes above the zygomatic bone, effectively separating the entire facial skeleton from the cranial base. * **Le Fort III (Correct):** The fracture line starts at the nasofrontal suture, extends across the bridge of the nose, through the ethmoid bone, along the medial orbital wall, across the orbital floor, and through the lateral orbital wall. Crucially, it involves the **zygomaticofrontal suture** and the **zygomatic arch**. Since the break occurs above the malar (zygomatic) bone, it is "suprazygomatic." * **Le Fort I (Incorrect):** This is a **Guerin fracture** or horizontal maxillary fracture. It occurs at the level of the nasal floor, separating the alveolar process from the rest of the maxilla. It is "infrazygomatic." * **Le Fort II (Incorrect):** This is a **Pyramidal fracture**. The fracture line passes through the nasal bones, maxillary sinus, and infraorbital rim. While it approaches the zygomatic area, it stays medial to the zygomaticomaxillary suture. * **Mandibular fracture (Incorrect):** These involve the lower jaw and are anatomically unrelated to the zygomatic complex or the Le Fort classification of midface fractures. **High-Yield Clinical Pearls for NEET-PG:** * **Dish-face deformity:** Classic clinical appearance of Le Fort II and III due to the backward and downward displacement of the midface. * **CSF Rhinorrhea:** Most common in Le Fort III due to involvement of the ethmoid bone/cribriform plate. * **Pterygoid Plates:** Involvement of the pterygoid plates is a mandatory feature for all Le Fort fractures. * **Guérin's Sign:** Ecchymosis in the region of the greater palatine artery (seen in Le Fort I).

Q: Which of the following structures remains intact in a closed head injury?

Dura mater. In neurosurgery and trauma management, the classification of head injuries is primarily based on the integrity of the **Dura Mater**. ### **Why Dura Mater is the Correct Answer** A **closed head injury** is defined as a traumatic brain injury where the **dura mater remains intact**. Even if there are extensive fractures of the skull or severe underlying brain parenchymal damage (like contusions or diffuse axonal injury), the injury is classified as "closed" as long as the protective dural barrier is not breached. This is a critical distinction because an intact dura prevents direct communication between the external environment and the cerebrospinal fluid (CSF), significantly reducing the risk of meningitis and intracranial sepsis. ### **Analysis of Incorrect Options** * **A. Scalp & B. Skull:** In a closed head injury, the scalp may have lacerations and the skull may have displaced or non-displaced fractures. The presence of a skull fracture does not automatically make an injury "open." * **D. Arachnoid Mater:** The arachnoid mater is deep to the dura. If the dura mater is breached (making it an open injury), the arachnoid is almost always breached as well. However, the defining anatomical boundary for the classification is the dura. ### **High-Yield Clinical Pearls for NEET-PG** * **Open Head Injury:** Defined by a breach in the dura mater. Clinical signs include CSF rhinorrhea, CSF otorrhea, or brain tissue herniating through a wound. * **Compound Fracture:** A skull fracture associated with an overlying scalp laceration. If the dura is torn underneath, it becomes an open head injury. * **The "Dural Barrier":** The dura is the toughest layer of the meninges (pachymeninx). Its integrity is the single most important factor in preventing post-traumatic intracranial infection.

Question 1

During an explorative laparotomy for a penetrating abdominal injury, suspicion of significant blood loss arises due to a prolonged surgery. Which of the following methods best quantifies the actual blood loss?

Accepted Answer

Measuring volume in suction bottles and the increase in weight of swabs

Answer

Assessing for pallor

Answer

Determining cardiac output using the thermodilution method

Answer

Using transesophageal Doppler

Question 2

What is the appropriate treatment modality for an 8-year-old child with a unilateral condylar fracture presenting with chronic pain and normal occlusion?

Accepted Answer

Active jaw movements

Answer

Intermaxillary fixation (IMF) for 2 weeks

Answer

Intermaxillary fixation (IMF) for 4 weeks

Answer

Open reduction

Question 3

A 34-year-old male presents with sudden onset, increasing respiratory distress following chest trauma. A hyper-resonant note is observed on the left side. What is the most appropriate immediate emergent management?

Accepted Answer

Needle puncture and emergent decompression

Answer

Tube insertion

Answer

Antibiotics and oxygen

Answer

No treatment needed

Question 4

A 50-year-old fire fighter emerges from a burning house with third-degree burns over 70% of his body. The patient expires 24 hours later. Which of the following was the most likely cause of death?

Accepted Answer

Hypovolemic shock

Answer

Congestive heart failure

Answer

Disseminated intravascular coagulation

Answer

Pulmonary saddle embolism

Question 5

A rugby player hit his head on the post whilst involved in a tackle. He was unconscious for 5 min but regained full consciousness and sat on the sideline until the end of the game. He was then noted to be drowsy and over the past 30 min became confused and no longer obeyed commands. Most likely diagnosis is:

Accepted Answer

Extradural hematoma

Answer

Subdural hematoma

Answer

Subarachnoid hematoma

Answer

Cerebral edema

Question 6

A 24-year-old Jehovah's Witness who underwent emergent splenectomy following a high-speed motorcycle collision with an estimated blood loss of 1500 mL. Which of the following strategies should be employed for his resuscitation?

Accepted Answer

Lactated Ringer solution should be administered in a ratio of 3:1 to replace the blood lost.

Answer

Vasopressors should be primarily utilized for maintenance of his blood pressure.

Answer

Synthetic colloids should be administered as the primary resuscitation fluid in a 3:1 ratio to replace the volume of blood lost.

Answer

0.9% normal saline should be administered in a 1:1 ratio to replace the volume of blood lost.

Question 7

A 48-year-old male patient, a victim of a road traffic accident (RTA), presents to the emergency room. Which of the following is NOT included in the primary survey of this trauma patient?

Accepted Answer

CT Abdomen for identification of bleeding

Answer

Measuring Blood Pressure (BP)

Answer

Exposing the body to rule out injuries

Answer

Checking the airway

Question 8

What is a suprazygomatic fracture?

Accepted Answer

Le Fort III fracture

Answer

Le Fort I fracture

Answer

Le Fort II fracture

Answer

Mandibular fracture

Question 9

Which of the following structures remains intact in a closed head injury?

Accepted Answer

Dura mater

Answer

Scalp

Answer

Skull

Answer

Arachnoid mater

Question 10

Which of the following statements about shock is true?

Accepted Answer

An early change in shock is increased release of noradrenaline.

Answer

During dehydration, both intracellular fluid (ICF) and extracellular fluid (ECF) volumes decrease.

Answer

A fluid loss of 10-20% is compatible with life.

Answer

The risk of death is high when fluid loss is 20-40%.

Trauma — MCQs

Trauma — MCQs

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