Trauma Practice Questions

Q: Which of the following agents can be used for granulation tissue after eschar separation in burns?

Povidone Iodine. **Explanation:** The management of a burn wound evolves through different stages. Once the **eschar** (necrotic tissue) has separated, the underlying **granulation tissue** is exposed. At this stage, the goal shifts from aggressive eschar penetration to protecting the delicate new tissue and preparing the wound bed for skin grafting. **Why Povidone-Iodine is correct:** Povidone-iodine (Betadine) is an effective antiseptic with a broad spectrum of activity. In the context of healthy granulation tissue, it is often used in a dilute form or as impregnated gauze. It helps maintain a relatively dry wound environment, prevents superficial infection, and promotes the maturation of granulation tissue, making it an ideal choice after eschar separation. **Analysis of Incorrect Options:** * **Silver Sulfadiazine (SSD):** The gold standard for early burn care. However, it can cause **pseudo-eschar** formation and may actually delay re-epithelialization or inhibit the growth of fresh granulation tissue. * **Silver Nitrate (0.5%):** While effective against surface bacteria, it is known to be **cytotoxic** to new epithelium and can cause electrolyte imbalances (hyponatremia/hypochloremia) and staining. * **Mafenide Acetate (Sulfamylon):** This is the agent of choice for **thick eschar** and ear burns due to its superior penetration. However, it is painful on application and can cause metabolic acidosis (via carbonic anhydrase inhibition), making it unsuitable for application on large areas of exposed granulation tissue. **High-Yield Clinical Pearls for NEET-PG:** * **Mafenide Acetate:** Best for cartilage (ears) and thick eschar; side effect is **Metabolic Acidosis**. * **Silver Sulfadiazine:** Most commonly used; side effect is **Transient Leukopenia**. * **Silver Nitrate:** Causes **Methemoglobinemia** and electrolyte disturbances. * **Rule of 9s:** Used for initial assessment of burn surface area (Wallace Rule).

Q: In an open injury, after toileting and debridement, muscle viability is detected by:

Colour of the muscle. In trauma surgery, assessing muscle viability is critical during debridement to prevent infection and gas gangrene. The standard clinical assessment follows the **"4 Cs" rule**. ### Why "Colour" is the Correct Answer The **Colour** of the muscle is one of the primary indicators of viability. Healthy, viable muscle is typically **beefy red**. If the muscle appears pale, dark blue, or black, it indicates ischemia or necrosis, necessitating excision. The complete **4 Cs of Muscle Viability** are: 1. **Colour:** Beefy red is viable; pale/dark is non-viable. 2. **Consistency:** Viable muscle is firm and resilient; non-viable muscle is friable and "mushy." 3. **Capacity to bleed:** Viable muscle shows brisk punctate bleeding when cut. 4. **Contractility:** Viable muscle contracts when pinched with forceps or stimulated electrically. ### Why Other Options are Incorrect * **B. Muscle Size:** The size or bulk of a muscle does not indicate its physiological health. A large muscle can be necrotic (e.g., in compartment syndrome), and a small muscle can be perfectly healthy. * **C. Muscle Function:** In an acute trauma setting, muscle function (active contraction by the patient) cannot be reliably assessed due to pain, nerve injury, or the use of anesthesia/muscle relaxants during surgery. ### NEET-PG High-Yield Pearls * **Most Reliable Sign:** While all 4 Cs are used, **Contractility** is often cited as the most reliable clinical sign of viability, followed by **Bleeding**. * **Objective Test:** If clinical signs are ambiguous, **Fluorescein dye** injection or **Technetium-99m pyrophosphate scans** can be used, though these are rarely done in emergency settings. * **Management:** Non-viable muscle must be debrided until healthy, bleeding tissue is reached to minimize the risk of *Clostridial* infections.

Q: The Glasgow Coma Scale (GCS) is determined by taking the best response in each category and totaling them; it ranges from?

3 to 15. ### Explanation The **Glasgow Coma Scale (GCS)** is the gold standard clinical tool used to assess a patient's level of consciousness following a head injury. It evaluates three specific categories of neurological response: **Eye Opening (E), Verbal Response (V), and Motor Response (M).** **1. Why Option A is Correct:** The GCS score is calculated by summing the scores of the three components: * **Eye Opening (E):** Ranges from 1 (No response) to 4 (Spontaneous). * **Verbal Response (V):** Ranges from 1 (No response) to 5 (Oriented). * **Motor Response (M):** Ranges from 1 (No response) to 6 (Obeys commands). The **minimum score** possible is **3** (E1 + V1 + M1), indicating deep coma or brain death. The **maximum score** is **15** (E4 + V5 + M6), indicating a fully awake and oriented individual. **2. Why Other Options are Incorrect:** * **Option B (0 to 12):** Incorrect because the scale does not start at zero. Even in a patient with no response, the minimum score for each category is 1. * **Option C (8 to 15):** Incorrect. While a score of 8 or less is the clinical definition of a "coma," the scale itself extends down to 3. * **Option D (3 to 10):** Incorrect. This underestimates the maximum possible motor and verbal responses. **3. Clinical Pearls for NEET-PG:** * **Severity Classification:** * Mild Head Injury: GCS 13–15 * Moderate Head Injury: GCS 9–12 * Severe Head Injury: GCS ≤ 8 (**"GCS of 8, Intubate!"**) * **Motor Response (M):** This is the most significant prognostic indicator among the three components. * **Recording:** If a patient is intubated, the verbal score is recorded as 'T' (e.g., GCS 10T), and the total is out of 10. * **Modified GCS:** For children under 4 years, a **Paediatric GCS** is used, which modifies the verbal and motor components to account for developmental stages.

Q: A 60-year-old alcoholic sustained blunt trauma to his head due to assault and is brought to the ER. He opens his eyes to pain, speaks incomprehensible words when his sternum is pressed, and withdraws his hand to pain. What is his Glasgow Coma Score?

8. The Glasgow Coma Scale (GCS) is a critical tool in trauma management used to assess a patient's level of consciousness. It evaluates three components: Eye opening (E), Verbal response (V), and Motor response (M). ### **Calculation for this patient:** 1. **Eye Opening (E):** The patient opens his eyes to pain. This corresponds to a score of **2**. (Spontaneous = 4, To speech = 3, To pain = 2, None = 1). 2. **Verbal Response (V):** The patient speaks incomprehensible words. This corresponds to a score of **2**. (Oriented = 5, Confused = 4, Inappropriate words = 3, Incomprehensible sounds = 2, None = 1). 3. **Motor Response (M):** The patient withdraws his hand to pain (Flexion withdrawal). This corresponds to a score of **4**. (Obeys commands = 6, Localizes pain = 5, Withdraws to pain = 4, Abnormal flexion/decorticate = 3, Extension/decerebrate = 2, None = 1). **Total GCS = E2 + V2 + M4 = 8.** ### **Analysis of Incorrect Options:** * **Option A (6):** This would be the score if the patient had no eye opening (1), no verbal response (1), and withdrawal to pain (4). * **Option C (10):** This would require higher responses, such as opening eyes to speech (3) and localizing pain (5). * **Option D (12):** This indicates mild head injury; the clinical description of incomprehensible words and pain-only responses is too severe for this score. ### **NEET-PG High-Yield Pearls:** * **GCS Classification:** Mild (13–15), Moderate (9–12), Severe (≤ 8). * **Clinical Rule:** "GCS of 8, Intubate!" Patients with a score of 8 or less typically require airway protection. * **Motor Component:** The motor score is the most reliable predictor of clinical outcome. * **Minimum/Maximum:** The lowest possible score is 3 (not 0), and the highest is 15.

Q: In traumatic brain injury, what is the target cerebral perfusion pressure that should be maintained?

70 - 90 mm Hg. **Explanation:** The management of Traumatic Brain Injury (TBI) focuses on preventing secondary brain injury by ensuring adequate oxygenation and perfusion. **Cerebral Perfusion Pressure (CPP)** is defined as the difference between the Mean Arterial Pressure (MAP) and the Intracranial Pressure (ICP) $[CPP = MAP - ICP]$. **Why 70 – 90 mm Hg is Correct:** According to standard surgical guidelines (including ATLS and Bailey & Love), the goal in TBI is to maintain a CPP between **70 and 90 mm Hg**. This range ensures sufficient blood flow to overcome increased intracranial pressure, preventing cerebral ischemia while avoiding the risks of hyperperfusion. **Analysis of Incorrect Options:** * **A (35 – 50 mm Hg):** This range is critically low. A CPP below 50 mm Hg is associated with significant cerebral ischemia and poor neurological outcomes. * **B (50 – 70 mm Hg):** While some neurosurgical protocols accept 60 mm Hg as a minimum, 50–70 mm Hg is generally considered suboptimal in the acute phase of severe TBI where higher pressures are needed to salvage the penumbra. * **D (> 90 mm Hg):** Excessively high CPP (above 90-100 mm Hg) increases the risk of **Acute Respiratory Distress Syndrome (ARDS)** and cerebral edema due to hydrostatic pressure, without providing additional neurological benefit. **High-Yield Clinical Pearls for NEET-PG:** * **Normal ICP:** 5 – 15 mm Hg. Treatment for intracranial hypertension is usually initiated when ICP > 20–22 mm Hg. * **Cushing’s Triad (Sign of increased ICP):** Hypertension, Bradycardia, and Irregular respirations. * **Monro-Kellie Doctrine:** The cranial vault is a fixed volume; an increase in one constituent (blood, CSF, or brain) must be compensated by a decrease in another, or ICP will rise. * **First-line management for raised ICP:** Head elevation (30°), sedation, and osmotic therapy (Mannitol or Hypertonic saline).

Q: Stress ulcers seen in burns are termed as?

Curling's ulcer. **Explanation:** **Curling’s Ulcer (Correct Answer):** Curling’s ulcers are acute gastric erosion/ulcerations that occur as a complication of **severe burns**. The underlying pathophysiology involves severe hypovolemia leading to mucosal ischemia and reduced protective mucus production. This allows gastric acid to cause deep ulcerations, most commonly in the **duodenum** (though they can occur in the stomach). * *Mnemonic:* **C**urling’s = **C**onflagration (Burns). **Incorrect Options:** * **Cushing’s Ulcer:** These are stress ulcers associated with **increased intracranial pressure** (due to head injury, tumors, or surgery). The mechanism involves overstimulation of the vagus nerve, leading to hypersecretion of gastric acid. They are more likely to occur in the esophagus or stomach and have a higher risk of perforation. * *Mnemonic:* **C**ushing’s = **C**ushion (Head/Brain). * **Meleney’s Ulcer:** Also known as progressive bacterial synergistic gangrene, this is a rare, slowly progressive infection of the subcutaneous tissue, usually following abdominal surgery. It is not a gastric ulcer. * **Rodent Ulcer:** This is a clinical term for **Basal Cell Carcinoma (BCC)**, typically occurring on the face. It is a slow-growing skin malignancy that "gnaws" into local tissues like a rodent. **High-Yield Clinical Pearls for NEET-PG:** * **Prophylaxis:** Proton Pump Inhibitors (PPIs) or H2 blockers are standard in burn units to prevent these ulcers. * **Most common site:** For Curling’s, it is the first part of the duodenum; for Cushing’s, it is the stomach. * **Cameron Ulcer:** Linear gastric erosions found within a large hiatal hernia. * **Dieulafoy’s Lesion:** A large submucosal artery that causes massive GI bleeding, typically in the proximal stomach.

Q: What is the correct sequence of resuscitation in a trauma patient?

Airway, breathing, and circulation. The correct sequence of resuscitation in a trauma patient follows the **ATLS (Advanced Trauma Life Support)** guidelines, prioritizing the **ABCDE** approach. ### **Explanation of the Correct Answer (B)** The primary goal of trauma resuscitation is to address the most immediate threats to life first. 1. **Airway (with Cervical Spine Protection):** A blocked airway can kill a patient within minutes. Ensuring a patent airway is the absolute first priority. 2. **Breathing:** Once the airway is clear, the clinician must ensure adequate ventilation and oxygenation (e.g., ruling out tension pneumothorax). 3. **Circulation:** After oxygenation is secured, the focus shifts to hemodynamic stability and hemorrhage control. ### **Why Other Options are Incorrect** * **Option A (C-A-B):** This is the sequence for **Basic Life Support (BLS)** in non-traumatic cardiac arrest (AHA guidelines). In trauma, the cause of arrest is rarely primary cardiac; it is usually airway obstruction or hemorrhage. * **Options C & D:** These deviate from the physiological hierarchy. Without a patent airway, providing circulation (C) or breathing (B) is ineffective as oxygen cannot reach the lungs or the systemic circulation. ### **High-Yield Clinical Pearls for NEET-PG** * **The "C-ABC" Exception:** In cases of **catastrophic/exsanguinating external hemorrhage**, the sequence shifts to **C-ABC** (Control of massive bleeding first) to prevent immediate exsanguination. * **C-Spine:** Always assume a cervical spine injury in any blunt trauma above the clavicle; airway management must include **Manual In-Line Stabilization (MILS)**. * **The "Golden Hour":** The first 60 minutes post-injury where prompt ABC intervention significantly reduces mortality. * **Definitive Airway:** A cuffed tube in the trachea (Endotracheal Intubation) is the gold standard for securing the 'A'.

Q: A patient with extensive injuries who is unlikely to survive with available care is classified as which color under triage?

Black. **Explanation:** In disaster management and mass casualty incidents (MCI), **Triage** is the process of prioritizing patients based on the severity of their injuries and their likelihood of survival with available resources. **Correct Answer: D. Black** The **Black Tag** is reserved for patients who are either deceased or have injuries so extensive that they are **unlikely to survive** given the current care capacity (e.g., massive head trauma, 90% full-thickness burns). In a resource-limited disaster setting, medical efforts are diverted away from these "expectant" cases toward those with a higher probability of survival. **Analysis of Incorrect Options:** * **A. Red (Immediate):** These patients have life-threatening injuries (e.g., tension pneumothorax, airway obstruction) but a **high chance of survival** if treated immediately. They are the top priority. * **B. Grey (Urgent/Delayed):** While some international systems use grey for expectant cases, the standard **START (Simple Triage and Rapid Treatment)** protocol used in most exams uses **Yellow** for "Delayed" cases (stable fractures, large wounds) that require care but are not immediately life-threatening. * **C. Green (Minor):** These are the "walking wounded" with minor injuries who can wait several hours for treatment. **High-Yield Clinical Pearls for NEET-PG:** * **Mnemonic (RPM):** Triage is often based on **R**espirations, **P**erfusion (Radial pulse), and **M**ental status. * **Reverse Triage:** In military settings or specific civilian scenarios, the least injured are sometimes treated first to return them to the front lines or to clear the scene. * **Color Coding Summary:** * **Red:** Priority 1 (Immediate) * **Yellow:** Priority 2 (Delayed) * **Green:** Priority 3 (Minor/Walking wounded) * **Black:** Priority 4 (Dead/Expectant)

Question 1

Which of the following agents can be used for granulation tissue after eschar separation in burns?

Accepted Answer

Povidone Iodine

Answer

Silver sulfadiazine

Answer

Silver Nitrate

Answer

Mafenide acetate

Question 2

In an open injury, after toileting and debridement, muscle viability is detected by:

Accepted Answer

Colour of the muscle

Answer

Muscle size

Answer

Muscle function

Answer

All of the above

Question 3

A 19-year-old man sustained a blunt injury to his upper abdomen after falling off his skateboard. Abdominal CT and magnetic resonance cholangiopancreatography (MRCP) confirmed transection of the main pancreatic duct at the middle of the pancreatic body. What is the most appropriate next step in management?

Accepted Answer

Distal pancreatectomy with splenic preservation

Answer

Nonoperative treatment

Answer

Endoscopic retrograde cholangiopancreatography (ERCP) with stenting of the pancreatic duct

Answer

Primary repair of the pancreatic duct with closed suction drainage

Question 4

What is the formula for calculating IV fluid requirements for a burns patient over the first 24 hours?

Accepted Answer

Total % body surface area × weight (in kg) × 4 mL = volume in mL

Answer

Total % body surface area × weight (in kg) × 3 mL = volume in mL

Answer

Total % body surface area × weight (in kg) × 2 mL = volume in mL

Answer

Total % body surface area × weight (in kg) × 6 mL = volume in mL

Question 5

The Glasgow Coma Scale (GCS) is determined by taking the best response in each category and totaling them; it ranges from?

Accepted Answer

3 to 15

Answer

0 to 12

Answer

8 to 15

Answer

3 to 10

Question 6

A 60-year-old alcoholic sustained blunt trauma to his head due to assault and is brought to the ER. He opens his eyes to pain, speaks incomprehensible words when his sternum is pressed, and withdraws his hand to pain. What is his Glasgow Coma Score?

Accepted Answer

8

Answer

6

Answer

10

Answer

12

Question 7

In traumatic brain injury, what is the target cerebral perfusion pressure that should be maintained?

Accepted Answer

70 - 90 mm Hg

Answer

35 - 50 mm Hg

Answer

50 - 70 mm Hg

Answer

> 90 mm Hg

Question 8

Stress ulcers seen in burns are termed as?

Accepted Answer

Curling's ulcer

Answer

Cushing's ulcer

Answer

Meleney's ulcer

Answer

Rodent ulcer

Question 9

What is the correct sequence of resuscitation in a trauma patient?

Accepted Answer

Airway, breathing, and circulation

Answer

Circulation, airway, and breathing

Answer

Airway, circulation, and breathing

Answer

Breathing, airway, and circulation

Question 10

A patient with extensive injuries who is unlikely to survive with available care is classified as which color under triage?

Accepted Answer

Black

Answer

Red

Answer

Grey

Answer

Green

Trauma — MCQs

Trauma — MCQs

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