Trauma Practice Questions

Q: Periorbital ecchymosis without direct orbital trauma (raccoon eyes) is most commonly associated with injury to:

Base of skull. ***Base of skull*** - **Periorbital ecchymosis** (raccoon eyes) is a classic sign of a **basilar skull fracture**, particularly one involving the **anterior cranial fossa**. - The fracture allows blood to leak from the cranial cavity and track along fascial planes into the periorbital soft tissues. - The key feature is that ecchymosis occurs **without direct trauma to the orbit or eye**, indicating the primary injury is to the **skull base**. - Often associated with CSF rhinorrhea and requires CT imaging for diagnosis. *Eye* - The question specifically states the ecchymosis occurs "**without direct orbital trauma**," meaning the eye/orbit is NOT the site of injury. - The eye region is where the sign **manifests** (blood tracks to this area), but it is not the site of the underlying injury. - Direct eye trauma would cause immediate localized periorbital swelling, not the delayed bilateral "raccoon eyes" pattern. *Pinna* - Pinna (ear) injury can be associated with head trauma, and Battle's sign (retroauricular ecchymosis) indicates temporal bone fracture. - However, pinna injury does not cause periorbital ecchymosis; these are separate findings. *Scalp* - Scalp injuries cause localized bleeding and swelling at the impact site. - While scalp trauma may accompany basilar skull fracture, the scalp itself is not the source of periorbital ecchymosis. - Blood from scalp wounds tracks superficially, not into deep fascial planes leading to the orbits.

Q: Degloving injury involves separation of:-

Skin + Fascia + Subcutaneous tissue. ***Skin + Fascia + Subcutaneous tissue*** - A **degloving injury** involves the traumatic separation of skin, subcutaneous tissue, and **superficial fascia** from the underlying deep fascia and muscle structures. - The separation typically occurs at the plane between the **superficial fascia** and **deep fascia**, creating the characteristic "degloved" appearance with loss of multiple tissue layers. *Skin + Subcutaneous tissue* - This option is incomplete as it fails to explicitly mention the **superficial fascia** component that is also involved in degloving injuries. - While anatomically the subcutaneous tissue includes fascial elements, the complete description should specifically include **fascia** as a separate component. *Skin* - This option is severely incomplete as degloving injuries involve much more than just the **epidermal and dermal layers**. - A true degloving injury must include separation of the **subcutaneous tissue** and **superficial fascia** to create the characteristic tissue defect. *Everything above from bone* - This description is too extensive and would represent a **complex avulsion** or **near-amputation** rather than a typical degloving injury. - Degloving specifically refers to separation at the **superficial-deep fascial plane**, not removal of all overlying tissues including muscle and deep fascia.

Q: In a school bus accident, which of the following victims will you attend first?

A child with Airway obstruction. ***A child with Airway obstruction*** - **Airway obstruction** is immediately life-threatening as it prevents oxygen from reaching the lungs and brain, leading to rapid deterioration and death. - In a mass casualty incident like a school bus accident, victims with airway issues are given **highest priority** in triage to establish a patent airway before addressing other injuries. *A child with shock* - While **shock** is a serious condition requiring urgent attention, a child with an unmanaged airway obstruction will die quicker than a child in shock. - Airway management takes precedence over circulatory support in the initial **triage assessment**. *A child with Severe head injury* - A **severe head injury** is critical, but if the airway is patent and breathing is occurring, it is prioritized after immediate airway threats. - The primary goal in emergency care is to secure the airway, then breathing, and then circulation (**ABC**). *A child with flail chest* - A **flail chest** is a significant injury that impairs breathing, but it is not as acutely life-threatening as a complete airway obstruction. - Management often involves pain control and positive pressure ventilation, which can be addressed after immediate airway issues are resolved.

Q: Class 3 hemorrhagic shock refers to:

Blood loss between 30% - 40%. ***Blood loss between 30% - 40%*** - **Class 3 hemorrhagic shock** is defined by a **blood loss** of 30-40% of the patient's total blood volume. - This level of blood loss typically leads to significant **hemodynamic instability**, including a marked decrease in **blood pressure** and altered mental status. *Blood loss more than 40%* - This level of blood loss corresponds to **Class 4 hemorrhagic shock**, which is the most severe class. - Patients in **Class 4 shock** are in immediate **life-threatening danger** with profound **hypotension** and absent peripheral pulses. *Blood loss between 15% - 30%* - This range of blood loss characterizes **Class 2 hemorrhagic shock**, where compensatory mechanisms are still largely effective. - Patients typically present with **tachycardia** and mild to no change in **blood pressure**. *Blood loss less than 15%* - This represents **Class 1 hemorrhagic shock**, which is the mildest form of shock. - Patients in **Class 1 shock** are usually **asymptomatic** or have minimal signs such as slight **tachycardia**.

Q: In the damage control resuscitation protocol, which location is primarily focused on correcting physiological derangements after initial hemorrhage control?

In ICU. ***In ICU*** - The **Intensive Care Unit (ICU)** is the primary location for correcting physiological derangements in the damage control resuscitation protocol after initial hemorrhage control. - This phase focuses on addressing the **"deadly triad"** of **acidosis**, **hypothermia**, and **coagulopathy** to stabilize the patient before definitive surgical repair. - The ICU provides the controlled environment and resources needed for prolonged resuscitation and physiological optimization. *In OT* - The **Operating Theater (OT)** is where initial hemorrhage control and damage control surgery are performed. - While some resuscitation occurs here, the main focus is on stopping bleeding and controlling contamination, not prolonged physiological correction. - The goal is rapid surgical intervention followed by transfer to ICU. *Prehospital resuscitation* - **Prehospital resuscitation** involves immediate life-saving interventions and rapid transport. - It prioritizes hemorrhage control, airway management, and preventing hypothermia, but lacks the resources for comprehensive physiological correction. - The focus is on rapid transport to definitive care. *In emergency* - The **Emergency Department (ED)** is crucial for initial assessment, rapid transfusion, and preparing the patient for surgery. - However, the ED phase is typically focused on rapid stabilization and transfer for definitive care rather than protracted physiological correction. - It serves as a bridge between prehospital care and the operating room.

Q: A Patient presented to emergency with multiple rib fractures. He is conscious speaking single words. On examination, respiratory rate was 40/minute and BP was 90/40 mmHg. What is immediate next step?

Needle insertion in 2nd intercostal space. ***Needle insertion in 2nd intercostal space*** - The patient's presentation with multiple rib fractures, **tachypnea (40/minute)**, **hypotension (90/40 mmHg)**, and speaking only single words suggests **tension pneumothorax**. - Speaking only single words indicates severe **respiratory distress** and inability to complete sentences due to dyspnea. - **Needle decompression** in the 2nd intercostal space at the midclavicular line is the immediate life-saving intervention for tension pneumothorax. - This is a **clinical diagnosis** in an emergency setting and does not require imaging confirmation before intervention. *Urgent IV fluid administration* - While fluid administration may be necessary for shock, the primary issue is likely **impaired ventilation** due to tension pneumothorax, which needs to be addressed first. - Delaying needle decompression to administer fluids could worsen the patient's respiratory and hemodynamic status. *Intubate the patient* - Intubation without addressing the cause of respiratory compromise, especially tension pneumothorax, can worsen the condition by increasing **intrathoracic pressure**. - Positive pressure ventilation in the presence of tension pneumothorax can be **life-threatening**. - **Relief of the tension pneumothorax** is the priority before considering definitive airway management. *Chest X-ray* - A chest X-ray is a diagnostic tool but should **not delay immediate life-saving interventions** in a patient with suspected tension pneumothorax. - Tension pneumothorax is a **clinical diagnosis** based on symptoms and immediate intervention takes precedence over imaging.

Q: Which is not a component of Lethal Triad in trauma?

Hypoxia. ***Hypoxia*** - The **lethal triad** of trauma consists of **hypothermia, acidosis, and coagulopathy**, which are critical factors that worsen outcomes in severely injured patients. - While **hypoxia** is a serious complication in trauma and can contribute to other elements of the triad, it is not considered one of the three direct components of the **lethal triad** itself. *Hypothermia* - **Hypothermia** contributes to the lethal triad by impairing enzyme function and exacerbating coagulopathy, leading to increased bleeding. - It results in decreased platelet function and reduced activity of clotting factors. *Coagulopathy* - **Coagulopathy** is a central component, as uncontrolled bleeding due to impaired coagulation is a major cause of death in severe trauma. - It can be induced by massive blood loss, resuscitation with crystalloids, and consumption of clotting factors. *Acidosis* - **Acidosis**, often due to hypoperfusion and shock, impairs myocardial function and further inhibits the clotting cascade. - It is often worsened by inadequate tissue oxygenation and lactate accumulation.

Q: Gold standard investigation for hemodynamically stable blunt abdominal trauma is:

CT with contrast. ***CT with contrast*** - **Computed tomography (CT) with intravenous contrast** is considered the **gold standard** for evaluating hemodynamically stable patients with blunt abdominal trauma due to its high sensitivity and specificity in detecting solid organ injuries, free fluid, and active extravasation. - It provides detailed anatomical information, helping to grade injuries and guide management decisions. *DPL* - **Diagnostic peritoneal lavage (DPL)** is an invasive procedure primarily used in hemodynamically unstable patients to rapidly detect intra-abdominal hemorrhage. - It has a high false-positive rate and is less specific for identifying the exact source or extent of injury compared to CT. *FAST scan* - The **Focused Assessment with Sonography for Trauma (FAST) scan** is a rapid, non-invasive imaging modality used to detect free fluid (usually blood) in the peritoneum, pericardium, and pleural spaces. - While useful for initial screening and in hemodynamically unstable patients, it is operator-dependent and cannot reliably detect retroperitoneal injuries or solid organ damage not associated with significant free fluid. *Plain X-ray* - **Plain X-rays** (e.g., abdominal X-rays) have very limited utility in assessing blunt abdominal trauma as they poorly visualize soft tissues and cannot detect hemorrhage or solid organ injury. - They are primarily used to evaluate for skeletal injuries or free air suggesting a ruptured viscus, which are not the primary concerns in comprehensive abdominal trauma assessment.

Question 1

A 20 year old boy is brought to the emergency following a RTA (Road Traffic Accident) with respiratory distress and hypotension. He has subcutaneous emphysema and no air entry on the right side. What is the next best step in the management?

Accepted Answer

Needle decompression in the 5th intercostal space in the mid-axillary line

Answer

Start IV fluids after insertion of a wide-bore IV line

Answer

Shift the patient to the ICU and perform intubation

Answer

Initiate positive pressure ventilation

Question 2

Periorbital ecchymosis without direct orbital trauma (raccoon eyes) is most commonly associated with injury to:

Accepted Answer

Base of skull

Answer

Pinna

Answer

Scalp

Answer

Eye

Question 3

Which of the following best describes a degloving injury?

Accepted Answer

Separation of skin, subcutaneous tissue, and fascia with tendon exposure

Answer

Separation of only the skin layer

Answer

Separation of skin and subcutaneous tissue without fascia involvement

Answer

Exposure of tendons without skin and fascia separation

Question 4

Degloving injury involves separation of:-

Accepted Answer

Skin + Fascia + Subcutaneous tissue

Answer

Skin

Answer

Everything above from bone

Answer

Skin + Subcutaneous tissue

Question 5

In a school bus accident, which of the following victims will you attend first?

Accepted Answer

A child with Airway obstruction

Answer

A child with shock

Answer

A child with Severe head injury

Answer

A child with flail chest

Question 6

Class 3 hemorrhagic shock refers to:

Accepted Answer

Blood loss between 30% - 40%

Answer

Blood loss more than 40%

Answer

Blood loss between 15% - 30%

Answer

Blood loss less than 15%

Question 7

In the damage control resuscitation protocol, which location is primarily focused on correcting physiological derangements after initial hemorrhage control?

Accepted Answer

In ICU

Answer

In OT

Answer

Prehospital resuscitation

Answer

In emergency

Question 8

A Patient presented to emergency with multiple rib fractures. He is conscious speaking single words. On examination, respiratory rate was 40/minute and BP was 90/40 mmHg. What is immediate next step?

Accepted Answer

Needle insertion in 2nd intercostal space

Answer

Urgent IV fluid administration

Answer

Intubate the patient

Answer

Chest X-ray

Question 9

Which is not a component of Lethal Triad in trauma?

Accepted Answer

Hypoxia

Answer

Hypothermia

Answer

Coagulopathy

Answer

Acidosis

Question 10

Gold standard investigation for hemodynamically stable blunt abdominal trauma is:

Accepted Answer

CT with contrast

Answer

DPL

Answer

FAST scan

Answer

Plain X-ray

Trauma — MCQs

Trauma — MCQs

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