Trauma Practice Questions

Q: The modified Glasgow coma scale defines neurologic impairment in terms of:

Eye opening, best verbal response, and motor function. The **Glasgow Coma Scale (GCS)** is the gold standard clinical tool used to assess the level of consciousness and the severity of neurological injury in trauma patients. It was developed by Teasdale and Jennett in 1974. ### **Explanation of the Correct Answer** The GCS evaluates three specific categories of neurological responses, often remembered by the mnemonic **EVM**: 1. **Eye Opening (E):** Scored 1 to 4. 2. **Verbal Response (V):** Scored 1 to 5. 3. **Motor Response (M):** Scored 1 to 6. The total score ranges from a **minimum of 3** (deep coma or death) to a **maximum of 15** (fully awake and oriented). Option D is correct because it accurately lists these three objective parameters. ### **Why Other Options are Incorrect** * **Option A:** While pupillary size and light reflex are vital in a neurological exam (often used in the "GCS-P" score), they are not part of the standard GCS components. * **Option B:** Cardiovascular status (BP, heart rate) is part of the Revised Trauma Score (RTS) but not the GCS. * **Option C:** Sensory function is not assessed in GCS; the scale focuses on the efferent (motor/verbal) output as a measure of cortical and brainstem integrity. ### **High-Yield Clinical Pearls for NEET-PG** * **Head Injury Classification:** * Mild: GCS 13–15 * Moderate: GCS 9–12 * Severe: GCS ≤ 8 (**"GCS of 8, Intubate!"**) * **Motor Response:** This is the most significant prognostic indicator among the three components. * **Modified GCS for Pediatrics:** Uses "grimace" and "crying" instead of standard verbal responses for infants. * **GCS-P:** A newer version that subtracts points for non-reactive pupils (Pupil Reactivity Score) to improve prognostic accuracy.

Q: All of the following are true about chronic subdural hematoma except:

Immediate recovery after surgery. **Explanation:** Chronic Subdural Hematoma (cSDH) typically occurs in elderly patients or those on anticoagulants, following minor head trauma. **1. Why Option A is the correct answer (False statement):** Unlike acute SDH or epidural hematomas, recovery after surgical evacuation of a **chronic** SDH is often **gradual**, not immediate. The underlying brain has been compressed for weeks, leading to reduced cerebral blood flow and potential cortical atrophy. The brain takes time to re-expand and fill the space previously occupied by the hematoma. Furthermore, the elderly brain has less "compliance," making rapid clinical reversal less common. **2. Analysis of Incorrect Options (True statements):** * **Option B:** By definition, cSDH presents **weeks to months** (typically >3 weeks) after the initial inciting event, which may be so trivial the patient forgets it. * **Option C:** Small collections may be **completely asymptomatic** and discovered incidentally on imaging. Symptoms only arise when the hematoma reaches a critical volume or causes a significant midline shift. * **Option D:** High-quality evidence (including the Santarius et al. trial) confirms that placing a **subdural drain** for 24–48 hours post-burr hole evacuation significantly reduces the rate of recurrence and the need for re-operation. **Clinical Pearls for NEET-PG:** * **Imaging:** Appears as a **crescent-shaped, hypodense (dark)** collection on NCCT. * **Risk Factors:** Chronic alcoholism, elderly age (due to brain atrophy stretching bridging veins), and anticoagulation. * **Management:** Burr-hole craniostomy is the gold standard for symptomatic cases. * **The "Great Mimicker":** cSDH is often confused with dementia, stroke, or TIA in the elderly due to its insidious onset of cognitive decline and focal deficits.

Q: Which of the following is the earliest sign that appears in hemorrhagic shock?

Tachycardia. **Explanation:** In the setting of acute blood loss (hemorrhagic shock), the body initiates a compensatory response to maintain cardiac output and tissue perfusion. The correct answer is **Tachycardia** because it is the earliest physiological response mediated by the sympathetic nervous system. **1. Why Tachycardia is the earliest sign:** When blood volume decreases, venous return and stroke volume drop. This is sensed by baroreceptors in the carotid sinus and aortic arch, triggering a sympathetic surge. This leads to an increase in heart rate (tachycardia) to compensate for the reduced stroke volume ($CO = HR \times SV$). According to the **ATLS Classification of Hemorrhagic Shock**, tachycardia (HR >100 bpm) typically appears in **Class II shock** (15–30% blood loss), whereas blood pressure remains normal due to compensatory mechanisms. **2. Why other options are incorrect:** * **Hypotension:** This is a **late sign** of shock. It typically does not occur until **Class III shock** (30–40% blood loss), when compensatory mechanisms like tachycardia and peripheral vasoconstriction are no longer sufficient to maintain pressure. * **Hypertension:** While a transient rise in diastolic pressure may occur due to catecholamine-mediated vasoconstriction (narrowing pulse pressure), true hypertension is not a feature of hemorrhagic shock. * **Syncope:** This indicates significant cerebral hypoperfusion and usually occurs in very late stages or during rapid, massive exsanguination. **Clinical Pearls for NEET-PG:** * **Narrow Pulse Pressure:** Often precedes the drop in systolic blood pressure. * **Class I Shock:** Heart rate is usually normal (<100); the only sign might be mild anxiety. * **Urine Output:** A sensitive indicator of perfusion; it starts decreasing in Class II and drops significantly (<15 ml/hr) in Class III. * **Golden Hour:** The critical period where resuscitation can prevent irreversible organ damage.

Q: What is the formula for the modified shock index?

Heart rate / Mean arterial pressure. **Explanation:** The **Modified Shock Index (MSI)** is a clinical tool used to assess hemodynamic stability and predict mortality or the need for massive transfusion in trauma and emergency settings. **1. Why Option C is Correct:** The formula for the Modified Shock Index is **Heart Rate (HR) / Mean Arterial Pressure (MAP)**. While the traditional Shock Index (SI) uses only systolic pressure, the MSI incorporates the MAP because it accounts for both systolic and diastolic components. Since MAP represents the actual perfusion pressure seen by organs, the MSI is a more sensitive predictor of clinical outcomes and occult shock than heart rate or blood pressure alone. A normal MSI range is typically **0.7 to 1.3**. **2. Why Other Options are Incorrect:** * **Option A:** This is the formula for the **Traditional Shock Index (SI)**. While useful, it can sometimes miss patients in "compensated shock." * **Option B:** Heart rate divided by diastolic blood pressure is not a standard clinical index used in trauma protocols. * **Option D:** Pulse rate/SBP is essentially the same as Option A (as HR and Pulse are usually interchangeable in this context) and represents the standard SI, not the modified version. **3. High-Yield Clinical Pearls for NEET-PG:** * **Normal Shock Index (SI):** 0.5 – 0.7. An SI > 0.9 is associated with increased mortality. * **MSI Utility:** An MSI **> 1.3** is a strong predictor of poor prognosis and indicates a high risk of requiring emergency intervention. * **Age-Specific:** In pediatrics, the **Paediatric Adjusted Shock Index (SIPA)** is used, as baseline heart rates are higher in children. * **Clinical Significance:** MSI is superior to the standard SI in predicting "occult shock"—where a patient has normal vital signs but is actually hypoperfusing at a cellular level.

Q: A 70-year-old gentleman sustained an injury. He can point to the site of pain, opens his eyes when pinched, and is confused about his location and the circumstances of the accident. What is his minimum Glasgow Coma Scale (GCS) score?

11. ### Explanation The Glasgow Coma Scale (GCS) is a clinical tool used to assess a patient's level of consciousness based on three parameters: Eye Opening (E), Verbal Response (V), and Motor Response (M). **Breakdown of the Patient’s Score:** 1. **Eye Opening (E):** The patient opens his eyes "when pinched" (response to pain). This corresponds to a score of **2**. 2. **Verbal Response (V):** The patient is "confused" about location and circumstances. This corresponds to a score of **4**. 3. **Motor Response (M):** The patient "can point to the site of pain." This indicates **localizing pain**, which corresponds to a score of **5**. **Total GCS = E2 + V4 + M5 = 11.** --- ### Why the other options are incorrect: * **Option B (10):** This would be the score if the patient had a lower motor response (e.g., withdrawal from pain, M4) or was only making sounds (V2). * **Option C (9):** This score would suggest a more severe impairment, such as no verbal response or abnormal posturing. * **Option D (8):** A GCS of ≤ 8 is the clinical definition of a **coma** and usually necessitates endotracheal intubation. --- ### High-Yield Clinical Pearls for NEET-PG: * **Minimum vs. Maximum:** The minimum GCS score is **3** (not zero), and the maximum is **15**. * **Motor Component:** The Motor (M) score is the most reliable predictor of clinical outcome. * **GCS in Trauma:** * 13–15: Mild Head Injury * 9–12: Moderate Head Injury * 3–8: Severe Head Injury (Coma) * **Modified GCS:** If a patient is intubated, the verbal score is recorded as 'T' (e.g., GCS 10T). * **Mnemonic for Motor (M6 to M1):** **C**an **L**ift **W**ithout **A**ny **E**xtra **N**othing (Obeys **C**ommands, **L**ocalizes, **W**ithdraws, **A**bnormal flexion, **E**xtension, **N**one).

Q: What is the initial fluid replacement strategy for a 20% blood loss?

Colloids and Crystalloids. **Explanation:** The management of hemorrhagic shock is a high-yield topic for NEET-PG. According to the **ATLS (Advanced Trauma Life Support)** classification of hemorrhagic shock, a **20% blood loss** falls under **Class II Hemorrhage** (15–30% loss). **Why Option A is Correct:** For Class II hemorrhage, the initial management focuses on restoring intravascular volume to maintain organ perfusion. The standard protocol involves the use of **Crystalloids** (like Normal Saline or Ringer’s Lactate) to replace volume. While crystalloids are the first line, **Colloids** (like Albumin or Hydroxyethyl starch) are also effective volume expanders that stay in the intravascular space longer. In clinical practice and traditional surgical teaching, a combination or a choice between these two is the "initial" strategy before blood products are considered. **Why Other Options are Incorrect:** * **B & C (Cryoprecipitate/Plasma):** These are blood components used to correct coagulopathy (massive transfusion protocols) rather than as initial volume expanders for moderate (20%) blood loss. * **D (Packed Red Blood Cells):** PRBCs are generally indicated for **Class III (30–40%)** and **Class IV (>40%)** hemorrhage. In Class II, the body’s compensatory mechanisms and crystalloid resuscitation are usually sufficient to maintain oxygen delivery. **Clinical Pearls for NEET-PG:** * **Class I ( 40%):** Lethargy, negligible urine output; **Massive Transfusion Protocol (MTP).** * **Golden Rule:** Always start with 1 liter of warmed isotonic crystalloid in adults.

Q: In crush syndrome, what is a common complication?

Renal failure. **Explanation:** **Crush Syndrome** (also known as Bywaters' Syndrome) occurs following the release of pressure from a crushed limb, leading to systemic manifestations. **Why Renal Failure is the Correct Answer:** The hallmark of crush syndrome is **Rhabdomyolysis**. When muscle tissue is crushed and then reperfused, large amounts of **Myoglobin** are released into the circulation. Myoglobin is nephrotoxic; it causes Acute Kidney Injury (AKI) through three mechanisms: 1. **Direct tubular toxicity.** 2. **Intratubular cast formation** (obstructing the nephron). 3. **Renal vasoconstriction** leading to ischemia. This often results in "Tea-colored" or "Cola-colored" urine and is the most significant life-threatening complication. **Why Other Options are Incorrect:** * **B. Liver failure:** While systemic inflammatory response syndrome (SIRS) can occur, the liver is not the primary target organ in crush injuries. * **C. Cardiac failure:** While hyperkalemia (released from damaged cells) can cause **cardiac arrhythmias** or arrest, primary pump failure (cardiac failure) is not the standard complication of the syndrome itself. * **D. Endocrine crisis:** Crush syndrome involves metabolic disturbances (acidosis, hyperkalemia, hypocalcemia), but it does not typically trigger an acute endocrine crisis (like Addisonian or Thyroid storm). **High-Yield Clinical Pearls for NEET-PG:** * **Early Management:** Aggressive fluid resuscitation (Normal Saline) is the most important step to prevent renal failure. * **Urine Alkalinization:** Sodium Bicarbonate is used to prevent myoglobin precipitation in tubules. * **Electrolyte Triad:** Hyperkalemia, Hyperphosphatemia, and Hypocalcemia. * **Compartment Syndrome:** Often precedes or accompanies crush syndrome; definitive treatment is fasciotomy if pressures are elevated.

Q: What is the first management step for a patient with a suspected cervical spine fracture?

Cervical spine immobilization. **Explanation:** The management of a trauma patient follows the **ATLS (Advanced Trauma Life Support)** protocol. In any patient with a suspected cervical spine (C-spine) injury—particularly those with blunt trauma above the clavicle, a high-velocity mechanism, or altered mental status—the absolute first step is **Cervical Spine Immobilization**. **Why B is correct:** The primary goal is to prevent secondary spinal cord injury. Any movement of an unstable fracture can lead to permanent neurological deficit or respiratory arrest (if the injury is above C3-C5). Immobilization is achieved using a rigid cervical collar, lateral sandbags, and tape, or manual in-line stabilization (MILS) during airway maneuvers. **Why the other options are incorrect:** * **A. Intubation:** While "Airway" is the first priority in the ABCDE sequence, it must be managed **simultaneously** with C-spine protection. If intubation is required, it must be done using MILS to prevent neck extension. * **C. X-ray of the spine:** Imaging is part of the "Secondary Survey" or the adjuncts to the primary survey. Clinical stabilization always precedes radiological diagnosis. * **D. Tracheostomy:** This is a surgical airway used only if endotracheal intubation fails or is contraindicated (e.g., massive facial trauma). It is not a first-line step for C-spine fractures. **Clinical Pearls for NEET-PG:** * **Nexus Criteria & Canadian C-Spine Rules:** Used to clinically rule out the need for imaging. * **Imaging of Choice:** MDCT (Multidetector CT) from the occiput to T1 is now the gold standard, replacing the 3-view X-ray series. * **Airway Management:** If a C-spine injury is suspected and the airway is compromised, **Orotracheal intubation with Manual In-Line Stabilization (MILS)** is the preferred method. Avoid hyperextension of the neck.

Question 1

The modified Glasgow coma scale defines neurologic impairment in terms of:

Accepted Answer

Eye opening, best verbal response, and motor function

Answer

Pupillary size, level of consciousness, and motor function

Answer

Speech, cardiovascular status, and consciousness

Answer

Sensory, motor function, and speech

Question 2

All of the following are true about chronic subdural hematoma except:

Accepted Answer

Immediate recovery after surgery

Answer

Presents weeks after head trauma

Answer

Patient can be completely asymptomatic

Answer

Use of a subdural drain is associated with a decreased need for repeat surgery

Question 3

Which of the following is the earliest sign that appears in hemorrhagic shock?

Accepted Answer

Tachycardia

Answer

Hypotension

Answer

Hypertension

Answer

Syncope

Question 4

What is the formula for the modified shock index?

Accepted Answer

Heart rate / Mean arterial pressure

Answer

Heart rate / Systolic blood pressure

Answer

Heart rate / Diastolic blood pressure

Answer

Pulse rate / Systolic blood pressure

Question 5

A 70-year-old gentleman sustained an injury. He can point to the site of pain, opens his eyes when pinched, and is confused about his location and the circumstances of the accident. What is his minimum Glasgow Coma Scale (GCS) score?

Accepted Answer

11

Answer

10

Answer

9

Answer

8

Question 6

According to Killey and Kay, which of the following is NOT an absolute indication for tooth removal in cases of fracture?

Accepted Answer

A tooth that is intact but present in the line of fracture and shows no evidence of mobility or inflammation.

Answer

Vertical fracture of the root

Answer

Pre-existing periapical lesion

Answer

Luxation and subluxation of the tooth from the socket

Question 7

What is the initial fluid replacement strategy for a 20% blood loss?

Accepted Answer

Colloids and Crystalloids

Answer

Cryoprecipitate

Answer

Plasma

Answer

Packed red blood cells

Question 8

In crush syndrome, what is a common complication?

Accepted Answer

Renal failure

Answer

Liver failure

Answer

Cardiac failure

Answer

Endocrine crisis

Question 9

A 25-year-old male presents with abdominal pain following blunt abdominal trauma sustained in a road traffic accident. On examination, his blood pressure is 120/80 mmHg and pulse rate is 72 bpm. What is the next best step in the management of this patient?

Accepted Answer

Focused Assessment with Sonography for Trauma (FAST) scan

Answer

Diagnostic Peritoneal Lavage

Answer

Non-contrast computed tomography (NCCT) of the abdomen

Answer

Contrast-enhanced computed tomography (CECT) of the abdomen

Question 10

What is the first management step for a patient with a suspected cervical spine fracture?

Accepted Answer

Cervical spine immobilization

Answer

Intubation

Answer

X-ray of the spine

Answer

Tracheostomy

Trauma — MCQs

Trauma — MCQs

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