Trauma Practice Questions

Q: A patient with a basilar skull fracture presents with Battle's sign and hearing loss. Which type of fracture is most likely?

Temporal bone fracture. A **temporal bone fracture** is the most likely cause of **Battle's sign** (ecchymosis over the mastoid process) and **hearing loss**, as it directly involves the mastoid air cells and the structures of the middle and inner ear. Hearing loss can result from damage to the **ossicles**, **tympanic membrane**, or **cochlea**, all located within the temporal bone [1]. *Frontal bone fracture* - **Frontal bone fractures** are typically associated with periorbital ecchymosis (**raccoon eyes**) and potential cerebrospinal fluid (CSF) rhinorrhea, not Battle's sign or hearing loss [2]. - These fractures primarily affect the forehead region and the anterior cranial fossa [3]. *Occipital bone fracture* - **Occipital bone fractures** commonly result from high-impact trauma to the back of the head and may be associated with neurological deficits related to the posterior fossa, but typically not Battle's sign or hearing loss. - They are more likely to cause problems with **vision** or **balance** if the cerebellum or visual cortex is affected. *Parietal bone fracture* - **Parietal bone fractures** often present as linear or depressed skull fractures and are primarily associated with localized swelling and potential underlying **epidural** or **subdural hematomas** [3]. - They are not typically linked to Battle's sign or hearing loss, as these symptoms point to involvement of the temporal bone.

Q: A 45-year-old male presents with severe abdominal pain following a high-speed car accident. On examination, there is tenderness in the right upper quadrant and epigastrium with guarding. What is the most likely organ to be injured?

Liver. ***Liver*** - The **liver** is the most commonly injured solid organ in blunt abdominal trauma due to its large size and relatively fixed position against the posterior abdominal wall and ribs, making it susceptible to shear forces during deceleration injuries. - Liver injury typically presents with **right upper quadrant tenderness** which may extend to the epigastrium, along with guarding and signs of hemorrhage. - The clinical presentation of RUQ pain with guarding following high-speed deceleration injury is classic for hepatic trauma. *Spleen* - The **spleen** is the second most commonly injured solid organ in blunt abdominal trauma but typically presents with pain in the **left upper quadrant** and left shoulder (Kehr's sign due to diaphragmatic irritation). - While splenic injury is common, the right upper quadrant tenderness described here points away from this diagnosis. *Pancreas* - **Pancreatic injuries** are less common in blunt trauma (occurs in only 1-2% of cases) and usually result from direct epigastric blows over the vertebral column (handlebar injuries, seat belt injuries). - It typically presents with **delayed symptoms** including severe epigastric pain radiating to the back, elevated amylase/lipase, often hours after the incident. - The immediate presentation with RUQ tenderness is more consistent with liver injury. *Stomach* - **Stomach injuries** from blunt trauma are rare (less than 1% of cases) due to its mobile nature and protective location beneath the rib cage. - When injured, it causes chemical peritonitis from leakage of gastric contents, presenting with generalized peritonitis rather than localized RUQ/epigastric tenderness.

Q: What is the best initial management for a burn patient with a suspected inhalation injury?

Immediate intubation. ***Immediate intubation*** - **Early intubation** is the standard of care for burn patients with **suspected inhalation injury** because progressive airway edema develops over 12-24 hours following thermal injury. - The principle is **"intubate early or never"** - delaying intubation can make it technically impossible once significant edema develops, leading to emergent surgical airway. - **Indications for early intubation** include: facial/neck burns, singed nasal hairs, carbonaceous sputum, hoarseness, stridor, or respiratory distress. - **Airway takes priority** over all other interventions in the ABC (Airway-Breathing-Circulation) sequence. *High-flow oxygen* - While **high-flow oxygen** is important for treating potential **carbon monoxide poisoning**, it does not protect the airway from progressive edema. - Oxygen should be administered, but only after securing the airway in patients with suspected inhalation injury. - CO poisoning is treated with oxygen, but airway compromise is the immediate life threat. *Bronchoscopy* - **Bronchoscopy** is useful for diagnosing the extent of airway injury and can help guide management decisions. - However, it is not the initial priority - securing the airway comes first. - Bronchoscopy can be performed after intubation to assess injury severity. *Intravenous fluid resuscitation* - **Fluid resuscitation** using formulas like **Parkland formula** (4 mL/kg/%TBSA) is crucial for burn management to prevent hypovolemic shock. - However, in the ABC sequence, airway management precedes circulation management. - Fluids are started after ensuring airway patency and adequate oxygenation.

Q: A patient presents to the emergency department following blunt abdominal trauma with severe abdominal pain, a pulse of 112 beats per minute, and a systolic blood pressure of 80 mmHg. Based on ATLS principles, what is the immediate next step in management?

IV fluid resuscitation and stabilization. ***IV fluid resuscitation and stabilization*** - The patient has **Class III hemorrhagic shock** (tachycardia 112 bpm, hypotension SBP 80 mmHg) following blunt abdominal trauma - Per **ATLS guidelines**, the priority is **"resuscitation before diagnosis"** - immediate aggressive IV fluid resuscitation with **2 large-bore IV lines** and **crystalloid boluses** - **Simultaneous actions** include: blood typing and crossmatch, FAST examination at bedside, and preparing the OR - The patient's **response to resuscitation** determines next steps: if remains unstable despite fluids → immediate laparotomy; if stabilizes → CT scan for further evaluation - **"No one goes to the OR dry"** - basic trauma principle requiring resuscitation initiation before definitive surgery *Exploratory laparotomy* - While likely needed given the unstable presentation, **immediate laparotomy without initiating resuscitation violates ATLS protocols** - The correct approach is **resuscitation WHILE preparing for surgery**, not delaying resuscitation until in the OR - Surgery is indicated for **persistent hemodynamic instability despite adequate resuscitation** or positive FAST with shock *CT scan of abdomen* - CT is **contraindicated in hemodynamically unstable patients** - correct assessment - This patient needs **bedside FAST examination** instead, which can be done during resuscitation - CT is reserved for **hemodynamically stable patients** after trauma *Nasogastric decompression* - Not a priority in acute trauma resuscitation - May be placed during resuscitation but does not address the **life-threatening hypovolemic shock** - Has no role in initial stabilization of hemorrhagic shock

Q: What does a bluish-purple discoloration behind the mastoid indicate?

Battle sign. ***Battle sign*** - A **bluish-purple discoloration behind the mastoid** (postauricular ecchymosis) is a classic sign of a **basilar skull fracture**, particularly involving the middle cranial fossa. - This bruising is caused by the extravasation of blood from the fracture site into the soft tissues over the mastoid process. *Bezold abscess* - A Bezold abscess is a rare complication of **mastoiditis**, where infection erodes through the mastoid tip and spreads to the soft tissues of the neck. - It presents as a **painful swelling in the neck** and is typically not associated with a bluish-purple discoloration *behind* the mastoid unless there is significant necrotic tissue or a secondary hematoma, which is not the primary feature. *Both A and B* - These conditions represent distinct pathologies, one related to **trauma (Battle sign)** and the other to **infection (Bezold abscess)**. - While both involve the mastoid region, their underlying causes and typical presentations are different. *None of the options* - The image directly displays the characteristic bruising of a Battle sign, making this option incorrect. - The appearance is highly indicative of a specific medical condition.

Q: Estimate volume of Ringer lactate in first 8 hours for a 50 kg male with 40% TBSA second-degree burns?

4 liters. **4 liters** - The Parkland formula is used for fluid resuscitation in burn patients: **4 mL x body weight (kg) x % TBSA burned**. - For a 50 kg male with 40% burns, the total fluid needed in the first 24 hours is 4 mL x 50 kg x 40% = **8000 mL (8 liters)**. Half of this volume is given in the first 8 hours, which is 8000 mL / 2 = **4000 mL (4 liters)**. *8 liters* - This volume represents the **total fluid requirement for the first 24 hours**, not just the first 8 hours. - The Parkland formula dictates that only half of the total 24-hour fluid volume is administered in the first 8 hours post-burn. *2 liters* - This amount is **insufficient** for adequate resuscitation of a patient with 40% total body surface area (TBSA) burns. - Administering only 2 liters would likely lead to **under-resuscitation and hypovolemic shock**. *6 liters* - This volume is **more than the recommended amount** for the first 8 hours but less than the total 24-hour requirement. - Over-resuscitation can lead to complications such as **compartment syndrome** and **pulmonary edema**.

Q: Which of the following statements about the management of haematomas is NOT correct?

Haematoma must be operated.. ***Haematoma must be operated.*** - This statement is **incorrect** because not all hematomas require surgical intervention. - The decision to operate depends on **size**, **location**, **neurological status**, **mass effect**, and rate of expansion. - Small, asymptomatic hematomas can be managed **conservatively** with serial imaging and close neurological monitoring. - Absolute statements like "must be operated" are incorrect in clinical practice where individualized management is essential. *Some haematomas require surgical intervention.* - This statement is **correct** - many hematomas necessitate surgical evacuation. - Indications for surgery include: **significant mass effect**, **midline shift >5mm**, **neurological deterioration**, **large volume** (>30mL for SDH, >50mL for ICH), or **posterior fossa hematomas** causing brainstem compression. - Surgical intervention aims to relieve intracranial pressure and prevent secondary brain injury. *GCS assessment is helpful in prognosis.* - This statement is **correct** - the **Glasgow Coma Scale (GCS)** is a critical prognostic tool. - GCS is used to assess severity of neurological injury and predict outcomes in head trauma patients. - Lower GCS scores (≤8) indicate severe injury with poorer prognosis, while higher scores suggest better outcomes. - GCS also guides management decisions including need for intubation and intensive monitoring. *CT scan is the investigation of choice for acute haemorrhage.* - This statement is **correct** - **Non-contrast CT (NCCT)** is the gold standard for acute intracranial hemorrhage. - CT is rapid, widely available, and highly sensitive for detecting acute blood. - It helps identify location, size, mass effect, and associated injuries like skull fractures. - MRI has limited role in acute settings but is useful for subacute/chronic hemorrhage and detecting diffuse axonal injury.

Q: Burr hole is done for -

Chronic subdural hematoma (SDH). ***Chronic subdural hematoma (SDH)*** - Burr hole drainage is a standard and effective procedure for **chronic subdural hematomas**, especially in elderly patients, allowing the evacuation of encapsulated fluid. - The procedure can be performed under local anesthesia, offering a less invasive approach for chronic collections. *Acute subdural hematoma (SDH)* - Acute SDH typically requires a **craniotomy** for rapid and complete evacuation of the dense, clotted blood, due to its emergent nature and potential for rapid neurological deterioration. - Burr holes are generally insufficient for evacuating large, clotted acute hematomas because the blood is too thick to drain effectively. *Intracerebral abscess* - An intracerebral abscess usually requires either a **craniotomy with excision** or frameless stereotactic aspiration for drainage, to completely remove the abscess capsule and its contents. - Burr holes alone might be used for diagnostic aspiration but are usually inadequate for definitive treatment of an abscess due to the need for thorough evacuation and sometimes decapsulation. *Hydrocephalus* - Hydrocephalus, an accumulation of cerebrospinal fluid, is typically treated by inserting a **shunt system** (e.g., ventriculoperitoneal shunt) to divert the fluid from the brain to another body cavity. - While a burr hole is made to access the ventricle for shunt placement, it is not the definitive treatment for hydrocephalus itself; rather, it's a step in a more complex procedure.

Q: Popliteal artery injury is commonly seen in which type of traumatic knee dislocation?

Anterior. ***Correct: Anterior*** - **Anterior knee dislocations** are the **most common type** of knee dislocation and have the **highest risk of popliteal artery injury** (reported in 30-40% of cases). - The mechanism involves **hyperextension forces** that stretch the popliteal artery over the posterior joint capsule, leading to **intimal tears, thrombosis, or complete arterial rupture**. - **Urgent vascular assessment** (ankle-brachial index, angiography/CTA) is mandatory in all knee dislocations, especially anterior dislocations. - Any knee dislocation requires **urgent reduction** and careful neurovascular monitoring due to the risk of limb-threatening ischemia. *Incorrect: Posterior* - Posterior knee dislocations are **less common** than anterior dislocations and have a **lower incidence** of popliteal artery injury. - These typically result from **dashboard injuries** with direct anterior force displacing the tibia posteriorly. - While vascular injury can occur, it is **not as frequent** as with anterior dislocations. *Incorrect: Medial* - Medial knee dislocations result from **valgus stress** and are relatively uncommon. - Primary injuries involve the **medial collateral ligament (MCL)** and cruciate ligaments. - Popliteal artery injury is **much less common** compared to anterior dislocations. *Incorrect: Lateral* - Lateral knee dislocations result from **varus stress** and are the least common type. - Primary injuries involve the **lateral collateral ligament (LCL)**, fibular head, and common peroneal nerve. - **Peroneal nerve injury** is more characteristic than vascular injury in this type.

Q: Most common organ injured in penetrating injury of the abdomen:

Small bowel. ***Small bowel*** - The **small bowel** is the most frequently injured organ in penetrating abdominal trauma due to its extensive length and the large area it occupies within the abdominal cavity. - Its long, convoluted course makes it highly susceptible to being struck by projectiles or sharp objects traversing the abdomen. - Accounts for approximately **25-35%** of all penetrating abdominal injuries. *Liver* - The liver is commonly injured in both blunt and penetrating abdominal trauma, but it is the **second most frequent** organ injured in penetrating trauma. - Its large size and anterior position make it prone to injury, particularly in **gunshot wounds** or **stab wounds** to the upper abdomen. *Spleen* - The spleen is more frequently injured in **blunt abdominal trauma** rather than penetrating trauma. - While it can be injured by penetrating objects, its location in the left upper quadrant and protection by the rib cage makes it less exposed than the small bowel. *Colon* - The colon is the **third most commonly** injured organ in penetrating abdominal trauma. - Due to its fixed portions (ascending and descending colon) and large surface area, it is frequently encountered in penetrating injuries, but less so than the more mobile and extensive small bowel.

Question 1

A patient with a basilar skull fracture presents with Battle's sign and hearing loss. Which type of fracture is most likely?

Accepted Answer

Temporal bone fracture

Answer

Frontal bone fracture

Answer

Occipital bone fracture

Answer

Parietal bone fracture

Question 2

A 45-year-old male presents with severe abdominal pain following a high-speed car accident. On examination, there is tenderness in the right upper quadrant and epigastrium with guarding. What is the most likely organ to be injured?

Accepted Answer

Liver

Answer

Spleen

Answer

Stomach

Answer

Pancreas

Question 3

What is the best initial management for a burn patient with a suspected inhalation injury?

Accepted Answer

Immediate intubation

Answer

Bronchoscopy

Answer

High-flow oxygen

Answer

Intravenous fluid resuscitation

Question 4

A patient presents to the emergency department following blunt abdominal trauma with severe abdominal pain, a pulse of 112 beats per minute, and a systolic blood pressure of 80 mmHg. Based on ATLS principles, what is the immediate next step in management?

Accepted Answer

IV fluid resuscitation and stabilization

Answer

Nasogastric decompression

Answer

Exploratory laparotomy

Answer

CT scan of abdomen

Question 5

What does a bluish-purple discoloration behind the mastoid indicate?

Accepted Answer

Battle sign

Answer

Bezold abscess

Answer

Both A and B

Answer

None of the options

Question 6

Estimate volume of Ringer lactate in first 8 hours for a 50 kg male with 40% TBSA second-degree burns?

Accepted Answer

4 liters

Answer

8 liters

Answer

2 liters

Answer

6 liters

Question 7

Which of the following statements about the management of haematomas is NOT correct?

Accepted Answer

Haematoma must be operated.

Answer

Some haematomas require surgical intervention.

Answer

GCS assessment is helpful in prognosis.

Answer

CT scan is the investigation of choice for acute haemorrhage.

Question 8

Burr hole is done for -

Accepted Answer

Chronic subdural hematoma (SDH)

Answer

Intracerebral abscess

Answer

Hydrocephalus

Answer

Acute subdural hematoma (SDH)

Question 9

Popliteal artery injury is commonly seen in which type of traumatic knee dislocation?

Accepted Answer

Answer

Posterior

Answer

Medial

Answer

Lateral

Question 10

Most common organ injured in penetrating injury of the abdomen:

Accepted Answer

Small bowel

Answer

Liver

Answer

Spleen

Answer

Colon

Trauma — MCQs

Trauma — MCQs

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