Trauma Practice Questions

Q: What is the most important aspect of management of burn injury in the first 24 hours?

Fluid resuscitation. **Explanation:** The primary goal in the management of major burns during the first 24 hours (the **emergent phase**) is the prevention and treatment of **hypovolemic (burn) shock**. Burn injuries lead to a massive systemic inflammatory response, causing increased capillary permeability and "third-spacing" of fluids. This results in a rapid depletion of intravascular volume. Therefore, **Fluid Resuscitation** is the most critical intervention to maintain organ perfusion and prevent acute kidney injury. **Why other options are incorrect:** * **Dressing:** While important for wound care and preventing heat loss, it is secondary to hemodynamic stabilization. * **Escharotomy:** This is a life- or limb-saving procedure indicated only in circumferential full-thickness burns causing compartment syndrome or respiratory compromise. It is not the "most important" general management step for all burn patients. * **Antibiotics:** Prophylactic systemic antibiotics are **not recommended** in the early management of burns as they do not prevent wound sepsis and may promote the growth of resistant organisms. **High-Yield Clinical Pearls for NEET-PG:** * **Parkland Formula:** The gold standard for fluid calculation in the first 24 hours is **4 mL × Body Weight (kg) × % TBSA** (Total Body Surface Area). * **Fluid Choice:** **Ringer’s Lactate** is the fluid of choice. * **Timing:** Half of the calculated fluid is given in the first 8 hours (from the time of injury), and the remaining half over the next 16 hours. * **Monitoring:** The most reliable indicator of adequate fluid resuscitation is **Urinary Output** (Target: 0.5–1.0 mL/kg/hr in adults).

Q: What is the most common complication following blunt injury to the thorax?

Rib fracture. **Explanation:** **1. Why Rib Fracture is the Correct Answer:** Rib fractures are the **most common injury** identified following blunt thoracic trauma, occurring in approximately 50% of patients admitted for chest injuries. They serve as a primary indicator of the severity of the impact. In clinical practice, the 4th through 9th ribs are most frequently involved because they are relatively thin and less protected by overlying musculature compared to the upper ribs. **2. Analysis of Incorrect Options:** * **A. Pneumothorax:** While common, it is usually a *consequence* of a rib fracture (where a jagged bone end punctures the lung) or sudden barotrauma. It occurs less frequently than the fractures themselves. * **C. Haemopneumothorax:** This represents a combination of air and blood in the pleural space. While a significant finding in trauma, it is statistically less common than isolated rib fractures. * **D. Aortic Rupture:** This is the most common cause of **immediate death** at the scene of high-velocity blunt trauma (e.g., deceleration injuries), but it is a relatively rare occurrence compared to the high incidence of rib fractures. **3. NEET-PG High-Yield Pearls:** * **Most common rib fractured:** 4th to 9th ribs. * **First and Second Rib Fractures:** Indicate high-energy trauma; always screen for associated injuries to the brachial plexus or subclavian vessels. * **Lower Rib Fractures (10th–12th):** High index of suspicion for **liver** (right side) or **spleen** (left side) injuries. * **Flail Chest:** Defined as $\geq$ 3 ribs fractured in $\geq$ 2 places; characterized by **paradoxical respiration**. * **Management:** The mainstay of treatment for simple rib fractures is **adequate analgesia** (to prevent splinting and subsequent pneumonia) and aggressive pulmonary toilet.

Q: A 70-year-old man presents after a motor vehicle accident with a fractured left rib and right femur. Abdominal CT reveals a left retroperitoneal hematoma adjacent to the left kidney, with no urine extravasation. How should this hematoma be managed?

Observation. **Explanation:** The management of retroperitoneal hematomas (RPH) is determined by the mechanism of injury (blunt vs. penetrating) and the anatomical zone involved. This patient has a **Zone 2 retroperitoneal hematoma** (perinephric/flank) following blunt trauma. **1. Why Observation is Correct:** In blunt trauma, Zone 2 hematomas are managed **conservatively (observation)** if the patient is hemodynamically stable and there is no evidence of expanding hematoma or major renal pedicle injury. The CT scan confirms no urine extravasation (ruling out significant ureteral/pelvic injury) and the hematoma is contained. Most blunt renal injuries are Grade I-III and resolve without intervention. **2. Why Incorrect Options are Wrong:** * **B & D (Surgical Exploration):** In blunt trauma, Zone 2 hematomas are only explored if they are rapidly expanding, pulsatile, or associated with hemodynamic instability. Routine exploration often leads to unnecessary nephrectomies. Flank approaches (Option D) are generally avoided in trauma as they do not allow for full abdominal inspection. * **C (CT-guided aspiration):** This is not indicated in the acute setting. Aspiration carries a risk of introducing infection (converting a hematoma into an abscess) and does not address the underlying injury. **NEET-PG High-Yield Pearls:** * **Zone 1 (Central/Midline):** Contains the aorta and IVC. **Always explore** in both blunt and penetrating trauma. * **Zone 2 (Flank/Perinephric):** Contains kidneys and adrenals. Explore in **penetrating** trauma; **observe** in blunt trauma (unless unstable). * **Zone 3 (Pelvic):** Associated with pelvic fractures. **Never explore** (unless expanding); management involves pelvic binding or angioembolization. * **The "Mattox Maneuver":** Left-sided medial visceral rotation to expose Zone 1 and 2 structures.

Q: Blisters are classified as which type of burn?

Superficial second degree burn. **Explanation:** The presence of **blisters** (bullae) is the hallmark clinical feature of a **Second-degree (Partial-thickness) burn**, specifically the **Superficial second-degree** type. 1. **Why Option B is correct:** In superficial second-degree burns, the injury extends through the epidermis into the papillary (superficial) dermis. The damage to the dermal-epidermal junction leads to local inflammatory exudate accumulation, which lifts the epidermis to form blisters. These burns are characteristically painful, blanch on pressure, and moist. 2. **Why other options are incorrect:** * **Option A & D:** First-degree burns (e.g., sunburn) involve only the epidermis. They present with erythema and pain but **no blisters**. (Note: "Deep first degree" is not a standard clinical classification). * **Option C:** Third-degree (Full-thickness) burns involve the entire dermis and underlying structures. They appear leathery, charred, or waxy white. Because the nerve endings are destroyed, they are **painless**, and because the skin is completely coagulated, they do **not** form blisters. **High-Yield Clinical Pearls for NEET-PG:** * **Deep Second-degree burns:** These involve the reticular (deep) dermis. They may have ruptured blisters, appear mottled white/pink, and have decreased sensation compared to superficial types. * **Rule of Nines:** Used for TBSA (Total Body Surface Area) calculation. Remember, first-degree burns are **excluded** from TBSA % calculations for fluid resuscitation. * **Parkland Formula:** $4 \text{ ml} \times \text{Body Weight (kg)} \times \% \text{ TBSA}$. Give half in the first 8 hours. * **Pain management:** Superficial second-degree burns are the most painful due to exposed sensory nerve endings.

Q: A patient developed haemoperitoneum following a Road Traffic Accident (RTA), with a blood pressure of 90/60 mmHg and a pulse of 140/min. Which of the following should be done?

Urgent surgery to be done. ### Explanation The core principle in managing abdominal trauma is determining **hemodynamic stability**. This patient presents with signs of **Class III/IV hemorrhagic shock** (BP 90/60 mmHg, Pulse 140/min) and confirmed hemoperitoneum. **1. Why "Urgent surgery to be done" is correct:** In a patient with blunt or penetrating abdominal trauma who is **hemodynamically unstable**, the standard of care is an **Emergency Exploratory Laparotomy**. The goal is immediate hemorrhage control ("damage control surgery"). Imaging or invasive diagnostics only delay life-saving intervention in an unstable patient with a clear source of bleeding. **2. Analysis of Incorrect Options:** * **Option A (DPL):** While DPL is used in unstable patients when FAST is unavailable, it has largely been replaced by FAST. More importantly, since hemoperitoneum is already diagnosed and the patient is crashing, surgery takes precedence over further diagnostic procedures. * **Option B (Liver):** In blunt trauma (common in RTA), the **Spleen** is the most commonly injured organ. The liver is the second most common. (Note: In penetrating trauma, the small intestine is most common). * **Option C (USG vs. CT):** While FAST (USG) is faster, **CT Scan is the gold standard** for stable patients as it identifies the specific grade of injury and retroperitoneal bleeds. However, CT is contraindicated in unstable patients. **Clinical Pearls for NEET-PG:** * **Unstable + Positive FAST/Hemoperitoneum** = Laparotomy. * **Stable + Positive FAST** = Proceed to CT Scan to grade the injury. * **Kehr’s Sign:** Referred pain to the left shoulder (indicates splenic rupture/diaphragmatic irritation). * **Pringle Maneuver:** Used intraoperatively to control bleeding by compressing the hepatoduodenal ligament.

Q: A patient presents to the ER with massive hemorrhage. What is contraindicated?

Administering 2L of IV crystalloid rapidly. ### Explanation The management of massive hemorrhage has shifted from aggressive volume replacement to **Damage Control Resuscitation (DCR)**. **Why Option B is Correct:** Administering 2L of IV crystalloids rapidly is now **contraindicated** in massive hemorrhage. Large volumes of crystalloids lead to the **"Lethal Triad"** (Acidosis, Hypothermia, and Coagulopathy). Specifically, they cause **dilutional coagulopathy** by thinning out clotting factors and can dislodge newly formed "soft clots" by abruptly increasing blood pressure (the concept of "popping the clot"). Current ATLS 10th Edition guidelines recommend an initial bolus of only **1 Liter** of crystalloid, followed by early transition to blood products. **Analysis of Incorrect Options:** * **A. Massive Transfusion Fluid Challenge:** In exsanguinating patients, a massive transfusion protocol (MTP) using a 1:1:1 ratio of Plasma:Platelets:PRBCs is the gold standard to maintain perfusion without causing dilution. * **C. Early Tranexamic Acid (TXA):** Based on the CRASH-2 trial, TXA should be administered within **3 hours** of injury to reduce mortality by inhibiting fibrinolysis. * **D. Thromboelastography (TEG):** TEG or ROTEM provides a real-time assessment of the patient's coagulation status (viscoelastic testing), allowing for "goal-directed" rather than empirical transfusion. **High-Yield Clinical Pearls for NEET-PG:** * **Permissive Hypotension:** The goal in non-compressible hemorrhage is to maintain a Mean Arterial Pressure (MAP) of ~65 mmHg (or systolic BP of 80-90 mmHg) until surgical control is achieved. * **Lethal Triad:** Hypothermia + Coagulopathy + Metabolic Acidosis. * **1:1:1 Ratio:** Modern MTP aims to mimic whole blood. * **Hypocalcemia:** A common complication of massive transfusion due to citrate toxicity.

Question 1

What is the most important aspect of management of burn injury in the first 24 hours?

Accepted Answer

Fluid resuscitation

Answer

Dressing

Answer

Escharotomy

Answer

Antibiotics

Question 2

A 50-year-old chronic alcoholic, while having dinner, suddenly becomes aphonic and presents with respiratory distress. What is the immediate management?

Accepted Answer

Heimlich maneuver

Answer

Cricothyroidotomy

Answer

Emergency tracheostomy

Answer

Humidified oxygen

Question 3

What is the most common complication following blunt injury to the thorax?

Accepted Answer

Rib fracture

Answer

Pneumothorax

Answer

Haemopneumothorax

Answer

Aortic rupture

Question 4

A 70-year-old man presents after a motor vehicle accident with a fractured left rib and right femur. Abdominal CT reveals a left retroperitoneal hematoma adjacent to the left kidney, with no urine extravasation. How should this hematoma be managed?

Accepted Answer

Observation

Answer

Exploratory laparotomy through a midline incision

Answer

CT-guided aspiration

Answer

Surgical exploration through a left-flank retroperitoneal approach

Question 5

Blisters are classified as which type of burn?

Accepted Answer

Superficial second degree burn

Answer

Superficial first degree burn

Answer

Third degree burn

Answer

Deep first degree burn

Question 6

A patient developed haemoperitoneum following a Road Traffic Accident (RTA), with a blood pressure of 90/60 mmHg and a pulse of 140/min. Which of the following should be done?

Accepted Answer

Urgent surgery to be done

Answer

Diagnostic Peritoneal Lavage (DPL) to be done

Answer

The liver is the most common organ to rupture

Answer

Ultrasound (USG) is better than CT Scan

Question 7

What is the minimum amount of acute blood loss required to cause manifestations of shock?

Accepted Answer

25-30%

Answer

10-12%

Answer

15-20%

Answer

24-25%

Question 8

The clinical features of eye opening, best verbal response, and best motor response that result in a Glasgow Coma Scale score of 7 best fit which of the following descriptions?

Accepted Answer

Eye opening to pain, making incomprehensible sounds, and flexion as the best motor response.

Answer

Spontaneous eye opening, confused verbal response, and localizes to pain.

Answer

Eye opening to pain, confused verbal response, and localizes to pain.

Answer

No eye opening, incomprehensible sounds, and extension as the best motor response.

Question 9

A patient presents to the ER with massive hemorrhage. What is contraindicated?

Accepted Answer

Administering 2L of IV crystalloid rapidly

Answer

Administering a massive transfusion fluid challenge

Answer

Administering early tranexamic acid

Answer

Checking coagulation with thromboelastography, if available

Question 10

Le Fort classification involves which bone fracture?

Accepted Answer

Maxilla

Answer

Mandible

Answer

Zygomatic arch

Answer

Nasal bone

Trauma — MCQs

Trauma — MCQs

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