Trauma Practice Questions

Q: Guerin's sign is associated with which of the following findings?

Ecchymosis at the greater palatine foramen. **Explanation:** **Guerin’s sign** is a classic clinical indicator of a **Le Fort I fracture** (horizontal maxillary fracture). It refers to ecchymosis (bruising) observed in the region of the **greater palatine foramen**. This occurs because the fracture line in Le Fort I passes through the lateral antral wall and the pterygoid plates, leading to the rupture of the greater palatine vessels and subsequent extravasation of blood into the palatal mucosa. **Analysis of Options:** * **Option A (Correct):** Ecchymosis at the greater palatine foramen is the defining feature of Guerin’s sign, specific to Le Fort I fractures. * **Option B (Incorrect):** Ecchymosis over the mastoid process is known as **Battle’s sign**, which indicates a fracture of the **posterior cranial fossa** (base of skull). * **Option C (Incorrect):** Ecchymosis in the condylar region is typically associated with mandibular fractures or localized trauma to the temporomandibular joint (TMJ). * **Option D (Incorrect):** While infraorbital ecchymosis (and infraorbital nerve anesthesia) is common in **Le Fort II and III fractures**, it is not referred to as Guerin’s sign. **Clinical Pearls for NEET-PG:** * **Le Fort I:** Floating palate; Guerin’s sign is the hallmark. * **Le Fort II (Pyramidal):** Involves the infraorbital margin; presents with **step-off deformity** and infraorbital anesthesia. * **Le Fort III (Craniofacial disjunction):** Involves the zygomatic arch; presents with **"Dish-face" deformity** and lengthening of the face. * **Panda Sign/Raccoon Eyes:** Periorbital ecchymosis indicating a fracture of the **anterior cranial fossa**.

Q: A patient presents following a motor vehicle accident. The patient moans intermittently, opens eyes only to pain, exhibits no movement in the right limb but moves the left limb in response to pain, and both legs are held in extension. What is the Glasgow Coma Scale (GCS) score?

9. ### Explanation The Glasgow Coma Scale (GCS) is a critical tool in trauma management for assessing the level of consciousness. It is calculated by summing the scores of three components: **Eye Opening (E), Verbal Response (V), and Motor Response (M).** **Step-by-Step Calculation for this Patient:** 1. **Eye Opening (E):** The patient opens eyes only to pain. **Score = 2.** 2. **Verbal Response (V):** The patient moans intermittently (incomprehensible sounds). **Score = 2.** 3. **Motor Response (M):** The patient exhibits asymmetrical movement. In GCS scoring, we always use the **best motor response**. While the right limb is immobile and legs are in extension (decerebrate), the left limb moves in response to pain (withdrawal/flexion). **Score = 5 (Withdraws from pain) or 4 (Flexion withdrawal).** * *Note:* Standard NEET-PG interpretations often classify "moves limb to pain" as **Withdrawal (M4)** or **Localizing (M5)** depending on the specificity. To reach the correct answer of **9**, the breakdown is **E2 + V2 + M5 = 9**. **Why other options are incorrect:** * **Option A (5):** This would imply a much deeper coma, such as E1, V1, M3 (Abnormal flexion). * **Option B (7):** This would occur if the patient had a lower motor score (e.g., M3 - Decorticate posturing). * **Option D (11):** This would require the patient to be oriented or following commands, which is not the case here. --- ### High-Yield Clinical Pearls for NEET-PG * **The "Best" Rule:** Always score the **best** response from any limb to determine the Motor score. * **GCS Classification:** * Severe Head Injury: GCS ≤ 8 (Indicative for Intubation: "8, Intubate") * Moderate: 9–12 * Mild: 13–15 * **Modified GCS:** In the latest updates, "Pain" is replaced by "Pressure" and "Incomprehensible sounds" by "Sounds." * **Minimum/Maximum:** The minimum score is 3 (not 0), and the maximum is 15.

Q: What is the initial method to prevent infection in burn patients?

Hand washing. ### Explanation The primary cause of morbidity and mortality in burn patients who survive the initial 48 hours is **sepsis**. The correct answer is **Hand washing** because it is the single most effective and simplest measure to prevent the transmission of nosocomial (hospital-acquired) pathogens. #### Why Hand Washing is Correct: Burn patients lose their primary protective barrier (the skin), making them highly susceptible to environmental bacteria. Most infections in burn units are transmitted via the **hands of healthcare workers**. Strict hand hygiene protocols significantly reduce the cross-contamination of multi-drug resistant organisms like *Pseudomonas aeruginosa* and *MRSA*. #### Why Other Options are Incorrect: * **Intravenous Antibiotics:** Prophylactic systemic antibiotics are **not recommended** in the initial management of burns. They do not prevent wound sepsis but instead increase the risk of developing fungal infections and promoting antibiotic resistance. * **Topical Antibiotics:** While agents like Silver Sulfadiazine or Mafenide Acetate are crucial for controlling bacterial colonization on the wound, they are considered secondary to strict aseptic techniques and hand hygiene. * **Physiotherapy:** This is essential for preventing contractures and maintaining joint mobility, but it plays no direct role in initial infection control. #### NEET-PG Clinical Pearls: * **Most common cause of early burn wound infection:** *Staphylococcus aureus*. * **Most common cause of late/severe burn wound infection:** *Pseudomonas aeruginosa*. * **Gold standard for diagnosing burn wound sepsis:** Wound biopsy showing >10⁵ organisms per gram of tissue with evidence of invasion into healthy tissue. * **Silver Sulfadiazine (Silvadene):** Most commonly used topical agent; can cause transient **neutropenia**. * **Mafenide Acetate (Sulfamylon):** Penetrates eschar well but can cause **metabolic acidosis** (carbonic anhydrase inhibition).

Q: A 25-year-old patient presents with upper abdominal pain following a road traffic injury. Their blood pressure is 130/80 mmHg and pulse is 92/min with good volume. A CECT scan reveals findings suggestive of intra-abdominal injury. What is the next line of management?

Conservative management. ### Explanation The management of blunt abdominal trauma is primarily dictated by the patient's **hemodynamic stability**, rather than the severity of the injury seen on imaging. **1. Why Conservative Management is Correct:** The patient is **hemodynamically stable** (BP 130/80 mmHg, Pulse 92/min). In modern trauma protocols (ATLS), stable patients with solid organ injuries (liver, spleen, or kidney) identified on CECT are managed via **Non-Operative Management (NOM)**. This involves intensive monitoring, serial clinical examinations, and bed rest. CECT is the gold standard for grading these injuries, but stability is the "green light" for a conservative approach, which preserves organ function and avoids surgical complications. **2. Why the Other Options are Incorrect:** * **B, C, and D (Exploratory Laparotomy):** Any form of immediate surgery is contraindicated in a hemodynamically stable patient unless there are clear signs of hollow viscus perforation or peritonitis. * **Packing** is a component of "Damage Control Surgery" used for uncontrollable hemorrhage in unstable patients. * **Hepatectomy** is rarely performed in trauma and is reserved for extensive tissue destruction. * **Hepatic artery ligation** is a historical/last-resort measure for hemorrhage that cannot be controlled by other means. **Clinical Pearls for NEET-PG:** * **The Golden Rule:** Stability = CECT and Conservative Management; Instability = FAST and Laparotomy. * **Most common organ injured** in blunt trauma: **Spleen** (overall), but **Liver** is also frequently involved. * **Prerequisite for NOM:** Hemodynamic stability, absence of peritoneal signs, and availability of ICU/surgical backup. * If a stable patient under NOM becomes unstable, the next step is often **Angio-embolization** (if a bleed is localized) or emergency laparotomy.

Q: What is the most effective method for reducing intracranial pressure (ICP)?

Ventriculostomy. **Explanation:** The management of raised intracranial pressure (ICP) follows the **Monro-Kellie Doctrine**, which states that the cranial vault is a fixed volume containing brain tissue, blood, and cerebrospinal fluid (CSF). An increase in one must be compensated by a decrease in another to prevent herniation. **Why Ventriculostomy is the Correct Answer:** Ventriculostomy (External Ventricular Drain - EVD) is considered the **most effective and immediate method** for reducing ICP. It allows for the physical removal of CSF from the ventricles, directly reducing the total volume within the skull. Unlike pharmacological interventions, its effect is instantaneous and it serves a dual purpose: therapeutic drainage and gold-standard diagnostic monitoring of ICP. **Analysis of Incorrect Options:** * **Osmotherapy (Mannitol/Hypertonic Saline):** While highly effective, these agents rely on an osmotic gradient to shift fluid from the intracellular space to the intravascular space. They take time to work and are limited by serum osmolality thresholds. * **Vasopressors:** These are used to maintain Cerebral Perfusion Pressure (CPP = MAP - ICP) by increasing Mean Arterial Pressure (MAP). They do not directly lower ICP; in fact, if autoregulation is lost, they may inadvertently increase it. * **Elective Ventilation:** Hyperventilation reduces ICP by causing hypocapnia, leading to cerebral vasoconstriction. However, this effect is transient (24-48 hours) and carries a risk of cerebral ischemia due to reduced blood flow. **NEET-PG High-Yield Pearls:** * **Gold Standard for ICP Monitoring:** Intraventricular catheter (Ventriculostomy). * **First-line Medical Management:** Head end elevation (30-45°) and Osmotherapy. * **Cushing’s Triad (Late sign of raised ICP):** Hypertension, Bradycardia, and Irregular respirations. * **Target ICP:** Maintain < 20-22 mmHg; **Target CPP:** 60-70 mmHg.

Q: All are true about tension pneumothorax except?

Needle aspiration of air.. **Explanation:** Tension pneumothorax is a life-threatening clinical emergency characterized by a "one-way valve" mechanism where air enters the pleural space during inspiration but cannot escape during expiration. **Why Option C is the Correct Answer (The "Except"):** While needle decompression is the immediate life-saving intervention, the **definitive treatment** for tension pneumothorax is the insertion of a **Chest Tube (Tube Thoracostomy)**. In the context of NEET-PG questions, "needle aspiration" is often distinguished from "needle decompression." Furthermore, the current ATLS 10th edition guidelines have updated the site for needle decompression to the **5th intercostal space** (mid-axillary line) rather than the traditional 2nd. **Analysis of Other Options:** * **Option A:** Mechanical ventilation with Positive End-Expiratory Pressure (PEEP) is indeed the leading cause of tension pneumothorax in ICU settings due to alveolar rupture under pressure. * **Option B:** In a tension pneumothorax, the intrapleural pressure remains **positive** throughout both inspiration and expiration, unlike a simple pneumothorax where it may fluctuate. * **Option D:** The hallmark of tension pneumothorax is **obstructive shock**. The high intrapleural pressure causes a mediastinal shift, compressing the SVC/IVC and kinking the pulmonary veins, leading to decreased venous return and inadequate cardiac output. **Clinical Pearls for NEET-PG:** * **Diagnosis:** It is a **clinical diagnosis**. Never wait for a Chest X-ray if you suspect it. * **Classic Triad:** Respiratory distress, hypotension (shock), and distended neck veins (JVP). * **Tracheal Shift:** Occurs to the **contralateral** (opposite) side. * **Percussion:** Hyper-resonant note on the affected side. * **Immediate Action:** Needle decompression (14-16G cannula) followed by a chest tube (usually 28-32 Fr).

Q: Raccoon's eye is a feature of which of the following?

Both Le Fort 2 and Le Fort 3 fractures. **Explanation:** **Raccoon’s Eye** (periorbital ecchymosis) is a clinical sign of a **basal skull fracture**, specifically involving the anterior cranial fossa. In the context of midface trauma, it occurs when the fracture line involves the **orbital floor or walls**, leading to blood extravasation into the periorbital soft tissues. **Why Option D is Correct:** * **Le Fort II (Pyramidal fracture):** The fracture line passes through the nasal bones, maxillary sinus, and the **infraorbital rim (orbital floor)**. This involvement of the orbit leads to periorbital edema and ecchymosis (Raccoon’s eye). * **Le Fort III (Craniofacial disjunction):** The fracture line involves the zygomatic arch, the **lateral and medial orbital walls**, and the orbital floor. Because this fracture completely separates the facial skeleton from the cranial base through the orbits, Raccoon’s eye is a classic hallmark. **Why Other Options are Incorrect:** * **Le Fort I (Guerin’s fracture):** This is a low-level horizontal fracture above the apices of the teeth. It involves the maxilla and pterygoid plates but **does not involve the orbits**. Therefore, it presents with a "floating palate" but not Raccoon’s eyes. **Clinical Pearls for NEET-PG:** 1. **Battle’s Sign:** Post-auricular ecchymosis indicating a fracture of the **petrous temporal bone** (middle cranial fossa). 2. **CSF Rhinorrhea:** Commonly associated with Le Fort II and III due to involvement of the ethmoid bone/cribriform plate. 3. **Dish-face Deformity:** Characteristic of Le Fort III due to the backward and downward displacement of the midface. 4. **Guérin’s Sign:** Ecchymosis in the region of the greater palatine vessels, seen in Le Fort I.

Q: Following a sudden impact in an accident, a 34-year-old race car driver becomes unconscious and is admitted to the hospital. A CT scan reveals a right space-occupying lesion. What is the most likely diagnosis?

Acute subdural hematoma. ***Acute subdural hematoma*** - **High-speed trauma** with immediate **loss of consciousness** is classic for acute subdural hematoma, which results from **bridging vein tears** between cortex and dura. - CT shows **crescent-shaped hyperdense collection** that **crosses suture lines** with potential **midline shift**, consistent with a space-occupying lesion. *Corpus callosum injury* - Typically occurs in **diffuse axonal injury** and would not present as a **space-occupying lesion** on CT scan. - Usually associated with **small hemorrhagic lesions** in corpus callosum, brainstem, and white matter, not a large hematoma. *Acute epidural hematoma* - Presents with **biconvex (lens-shaped)** hyperdense collection that **does not cross suture lines** on CT scan. - Often associated with **temporal bone fracture** and **middle meningeal artery** injury, with classic **lucid interval** before deterioration. *Pituitary apoplexy* - Involves **spontaneous hemorrhage** into the **pituitary gland**, not related to trauma mechanism described. - Presents with **severe headache**, **visual field defects**, and **hormonal dysfunction**, not immediate unconsciousness from impact.

Q: A 65-year-old male weighing 50 kg was admitted with 80% burn. According to the Parkland method, how much fluid should be infused in the first 8 hours?

1000 ml/h. ### Explanation The **Parkland Formula** is the gold standard for fluid resuscitation in burn patients during the first 24 hours. It calculates the total volume of Ringer’s Lactate (RL) required as follows: **Total Fluid (24 hrs) = 4 ml × Body Weight (kg) × Total Body Surface Area (TBSA) %** **Calculation for this patient:** * Weight = 50 kg; TBSA = 80% * Total Fluid = 4 × 50 × 80 = **16,000 ml** **Distribution Protocol:** * **First 8 hours:** Give 50% of the total volume (8,000 ml). * **Next 16 hours:** Give the remaining 50% (8,000 ml). To find the hourly rate for the first 8 hours: 8,000 ml ÷ 8 hours = **1,000 ml/h**. --- ### Analysis of Options * **Option C (1,000 ml/h):** Correct. This represents half the total calculated volume delivered over the first 8 hours. * **Option A (200 ml/h):** Incorrect. This is a gross under-resuscitation, likely to lead to hypovolemic shock and acute tubular necrosis. * **Option B (500 ml/h):** Incorrect. This would only deliver 4,000 ml in 8 hours, which is only 25% of the required Parkland volume. * **Option D (8,000 ml/h):** Incorrect. This is the total volume for the *entire* first 8-hour period, not the hourly rate. --- ### High-Yield Clinical Pearls for NEET-PG 1. **Fluid of Choice:** Crystalloid (Ringer’s Lactate) is preferred as it is isotonic and the lactate helps buffer metabolic acidosis. 2. **Timing:** The "first 8 hours" starts from the **time of injury**, not the time of hospital admission. 3. **Modified Brooke’s Formula:** Uses 2 ml/kg/% TBSA (often used in modern practice to avoid "fluid creep" or over-resuscitation). 4. **Monitoring:** The best indicator of adequate fluid resuscitation is **Urinary Output** (Target: 0.5–1 ml/kg/hr in adults; 1 ml/kg/hr in children).

Question 1

Guerin's sign is associated with which of the following findings?

Accepted Answer

Ecchymosis at the greater palatine foramen

Answer

Ecchymosis at the mastoid foramen

Answer

Ecchymosis at the condylar region

Answer

Ecchymosis at the infraorbital foramen

Question 2

A patient presents following a motor vehicle accident. The patient moans intermittently, opens eyes only to pain, exhibits no movement in the right limb but moves the left limb in response to pain, and both legs are held in extension. What is the Glasgow Coma Scale (GCS) score?

Accepted Answer

9

Answer

5

Answer

7

Answer

11

Question 3

What is the initial method to prevent infection in burn patients?

Accepted Answer

Hand washing

Answer

Physiotherapy

Answer

Intravenous antibiotics

Answer

Topical antibiotics

Question 4

All of the following are true about pulmonary contusion except:

Accepted Answer

A contusion involving more than 25% of the lung may require intubation.

Answer

May be missed on chest X-ray in up to 20% of cases.

Answer

Effective pain management is important to prevent hypoventilation.

Answer

CT scan is highly sensitive for diagnosis.

Question 5

A 25-year-old patient presents with upper abdominal pain following a road traffic injury. Their blood pressure is 130/80 mmHg and pulse is 92/min with good volume. A CECT scan reveals findings suggestive of intra-abdominal injury. What is the next line of management?

Accepted Answer

Conservative management

Answer

Exploratory laparotomy and packing

Answer

Exploratory laparotomy and hepatectomy

Answer

Exploratory laparotomy with hepatic artery ligation

Question 6

What is the most effective method for reducing intracranial pressure (ICP)?

Accepted Answer

Ventriculostomy

Answer

Osmotherapy

Answer

Vasopressors

Answer

Elective ventilation

Question 7

All are true about tension pneumothorax except?

Accepted Answer

Needle aspiration of air.

Answer

Leading cause is mechanical ventilation.

Answer

Positive pressure in pleural space throughout the respiratory cycle.

Answer

Inadequate cardiac output.

Question 8

Raccoon's eye is a feature of which of the following?

Accepted Answer

Both Le Fort 2 and Le Fort 3 fractures

Answer

Le Fort 1 fracture

Answer

Le Fort 2 fracture

Answer

Le Fort 3 fracture

Question 9

Following a sudden impact in an accident, a 34-year-old race car driver becomes unconscious and is admitted to the hospital. A CT scan reveals a right space-occupying lesion. What is the most likely diagnosis?

Accepted Answer

Acute subdural hematoma

Answer

Corpus callosum injury

Answer

Acute epidural hematoma

Answer

Pituitary apoplexy

Question 10

A 65-year-old male weighing 50 kg was admitted with 80% burn. According to the Parkland method, how much fluid should be infused in the first 8 hours?

Accepted Answer

1000 ml/h

Answer

200 ml/h

Answer

500 ml/h

Answer

8000 ml/h

Trauma — MCQs

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