Trauma Practice Questions

Q: Which intervention is appropriate for the immediately life-threatening injury of laryngeal obstruction?

Cricothyroidotomy. **Explanation:** In the management of trauma, the primary survey follows the **ABCDE** protocol. Airway obstruction is the most immediate threat to life. When a patient presents with **laryngeal obstruction** (due to trauma, edema, or foreign body), the upper airway is physically blocked, making standard orotracheal or nasotracheal intubation difficult or impossible. **Why Cricothyroidotomy is correct:** A **Cricothyroidotomy** is the preferred emergency surgical airway in an "unable to intubate, unable to ventilate" scenario. It is faster and technically easier to perform than a formal tracheostomy because the cricothyroid membrane is subcutaneous and relatively avascular. It bypasses the laryngeal obstruction entirely to provide immediate oxygenation. **Analysis of Incorrect Options:** * **A. Endotracheal intubation:** While the first-line for most airway issues, it is often contraindicated or physically impossible in the presence of a direct laryngeal obstruction or severe maxillofacial trauma. * **C. Subxiphoid window:** This is a diagnostic/therapeutic procedure used to identify **pericardial tamponade** (Circulation), not an airway intervention. * **D. Tube thoracostomy:** This is the treatment for **tension pneumothorax** or hemothorax (Breathing), which are life-threatening but do not address an obstructed upper airway. **High-Yield Clinical Pearls for NEET-PG:** * **Surgical Airway of Choice:** In emergencies, it is always Cricothyroidotomy. * **Age Contraindication:** Needle cricothyroidotomy (with jet ventilation) is preferred in children **under 12 years** to avoid permanent laryngeal damage/subglottic stenosis. * **Definitive Airway:** Defined by a tube in the trachea with the cuff inflated, connected to oxygen. * **Laryngeal Trauma Triad:** Hoarseness, subcutaneous emphysema, and palpable fracture.

Q: According to triage, a patient having visible bleeding should be treated in which category?

Emergency. **Explanation:** In disaster management and mass casualty incidents, **Triage** is the process of prioritizing patients based on the severity of their condition and the urgency of treatment required. **1. Why Emergency (Red Tag) is correct:** Visible, active bleeding indicates a life-threatening condition that requires immediate intervention to prevent hemorrhagic shock and death. In the standard triage system, patients with compromised "ABC" (Airway, Breathing, or **Circulation**) are categorized as **Red Tag (Immediate/Emergency)**. These patients have a high probability of survival if treated immediately but will likely die if treatment is delayed. **2. Why the other options are incorrect:** * **Delayed (Yellow Tag):** This category is for "stable" patients who require systemic treatment or surgery but whose life is not in immediate danger (e.g., large wounds without active bleeding, stable fractures). * **Minimal Treatment (Green Tag):** Also known as the "walking wounded," these patients have minor injuries (e.g., abrasions, minor sprains) that can wait several hours for care. * **No Treatment (Black Tag):** This is reserved for the deceased or those with injuries so catastrophic that survival is unlikely even with maximal care in a resource-limited setting. **Clinical Pearls for NEET-PG:** * **Color Coding:** Red (Immediate), Yellow (Delayed), Green (Ambulatory/Minimal), Black (Dead/Expectant). * **START Protocol:** The "Simple Triage and Rapid Treatment" (START) uses three criteria: **Respirations, Perfusion (Capillary refill/Pulse), and Mental Status (RPM).** * **Golden Hour:** The first 60 minutes after trauma where prompt medical intervention has the highest likelihood of preventing death. * **Revised Trauma Score (RTS):** Includes Glasgow Coma Scale (GCS), Systolic Blood Pressure, and Respiratory Rate.

Q: The response to shock includes which of the following metabolic effects?

Hyperkalemia. **Explanation:** The metabolic response to shock is a complex physiological attempt to maintain homeostasis and preserve vital organ perfusion. **Why Hyperkalemia is Correct:** During shock (particularly hypovolemic or cardiogenic), tissue hypoxia leads to a shift from aerobic to **anaerobic metabolism**, resulting in lactic acidosis. To buffer the excess hydrogen ions ($H^+$), the body moves them into the cells in exchange for potassium ($K^+$) moving out into the extracellular fluid. Furthermore, decreased renal perfusion leads to a drop in the glomerular filtration rate (GFR), impairing the kidneys' ability to excrete potassium. Cell death and membrane instability also contribute to the release of intracellular potassium, leading to **hyperkalemia**. **Why the other options are incorrect:** * **A & B: Increase in sodium/water excretion and renal perfusion:** In shock, the body activates the Renin-Angiotensin-Aldosterone System (RAAS) and releases ADH (Vasopressin). This causes **sodium and water retention** and vasoconstriction to maintain blood pressure. Renal perfusion actually **decreases** as blood is shunted toward the heart and brain. * **C: Decrease in cortisol levels:** Shock is a major physiological stressor. The hypothalamic-pituitary-adrenal axis is activated, leading to an **increase in cortisol** and catecholamines to mobilize glucose and maintain vascular tone. **NEET-PG High-Yield Pearls:** * **Hyperglycemia** is common in early shock due to increased glycogenolysis and gluconeogenesis (driven by cortisol and adrenaline). * **Metabolic Acidosis** with an elevated anion gap (due to lactate) is the hallmark of the metabolic response. * **Negative Nitrogen Balance:** Shock induces a catabolic state, leading to protein breakdown and increased urinary nitrogen excretion.

Q: What are the aims of an abbreviated laparotomy?

Hemostasis. **Explanation:** The concept of an **abbreviated laparotomy** is the surgical cornerstone of **Damage Control Surgery (DCS)**. It is performed in critically ill trauma patients who are physiological exhausted, manifesting the "Lethal Triad" of acidosis, hypothermia, and coagulopathy. **Why Hemostasis is Correct:** The primary objective of an abbreviated laparotomy is not definitive repair, but rather **rapid physiological restoration**. The surgery focuses exclusively on: 1. **Control of hemorrhage (Hemostasis):** Using packs, ligatures, or shunts. 2. **Control of contamination:** Using staples or rapid closure to prevent further soilage. Once these life-threatening issues are addressed, the abdomen is closed temporarily (e.g., Bogota bag or VAC), and the patient is moved to the ICU for resuscitation. **Why Incorrect Options are Wrong:** * **A. Decreased chance of infection:** Abbreviated laparotomy actually carries a *higher* risk of infection and abscess formation due to the use of intra-abdominal packing and temporary closure. * **B. Early ambulation:** These patients are critically unstable, often intubated, and require intensive care; early mobility is not a priority in the acute phase. * **C. Early wound healing:** The wound is intentionally left open (laparostomy) to prevent Abdominal Compartment Syndrome, which delays primary wound healing. **High-Yield Clinical Pearls for NEET-PG:** * **The Lethal Triad:** Acidosis (pH 10 units).

Q: What are the indications for celiotomy in blunt trauma?

Peritoneal air on imaging. In blunt abdominal trauma, the decision to perform a **celiotomy (laparotomy)** is based on evidence of hollow viscus injury, ongoing hemorrhage, or peritonitis. ### Why "Peritoneal air on imaging" is correct: The presence of **pneumoperitoneum** (free air under the diaphragm) is a pathognomonic sign of a **hollow viscus perforation** (e.g., stomach, duodenum, or bowel). In the context of trauma, this indicates an absolute emergency requiring immediate surgical exploration to repair the perforation and prevent fecal contamination or chemical peritonitis. ### Why the other options are incorrect: * **Grade I Spleen & Grade II Liver Damage:** Modern trauma management prioritizes **Non-Operative Management (NOM)** for hemodynamically stable patients with solid organ injuries. Low-grade injuries (Grade I-III) are successfully managed with observation, serial imaging, and bed rest in over 80-90% of cases. Surgery is only indicated if the patient becomes hemodynamically unstable or shows signs of peritonitis. ### High-Yield Clinical Pearls for NEET-PG: * **Absolute Indications for Celiotomy in Blunt Trauma:** 1. Hemodynamic instability with a positive FAST (Focused Assessment with Sonography for Trauma). 2. Evisceration of bowel or omentum. 3. Peritonitis (rebound tenderness, guarding). 4. Pneumoperitoneum (free air). 5. Positive Diagnostic Peritoneal Lavage (DPL) showing >10ml gross blood or >100,000 RBCs/mm³. * **The "Gold Standard"** for stable blunt trauma patients is a **CECT Abdomen**, which helps grade solid organ injuries and guides NOM. * **Seatbelt Sign:** Always suspect mesenteric or hollow viscus injury; these often require celiotomy even if initial scans are equivocal.

Question 1

In a patient with head injury, unexplained hypotension warrants evaluation of which spinal region?

Accepted Answer

Thoracic spine

Answer

Upper cervical spine

Answer

Lower cervical spine

Answer

Lumbar spine

Question 2

Rapid fluid resuscitation of the hypovolemic patient after abdominal trauma is significantly enhanced by which of the following?

Accepted Answer

Placement of short, large-bore percutaneous peripheral intravenous catheters

Answer

Placement of long 18-gauge subclavian vein catheters

Answer

Placement of percutaneous femoral vein catheters

Answer

Bilateral saphenous vein cutdowns

Question 3

AMPLE history includes all of the following except?

Accepted Answer

Personal history

Answer

Allergy

Answer

Last meal

Answer

Medication

Question 4

Which intervention is appropriate for the immediately life-threatening injury of laryngeal obstruction?

Accepted Answer

Cricothyroidotomy

Answer

Endotracheal intubation

Answer

Subxiphoid window

Answer

Tube thoracostomy

Question 5

A person involved in a road traffic accident presents to the emergency department with a laceration of the inguinal region. Examination reveals swelling in the inguinal region and distal pulsation. The internal iliac artery is normal, as are the common iliac and external femoral arteries. However, the common femoral vein is transected. What is the treatment of choice?

Accepted Answer

Vein repair with continuity

Answer

Sclerotherapy

Answer

Ligation of the femoral artery and vein

Answer

Amputation below the knee

Question 6

According to triage, a patient having visible bleeding should be treated in which category?

Accepted Answer

Emergency

Answer

Delayed

Answer

Minimal treatment

Answer

No treatment

Question 7

The response to shock includes which of the following metabolic effects?

Accepted Answer

Hyperkalemia

Answer

Increase in sodium and water excretion

Answer

Increase in renal perfusion

Answer

Decrease in cortisol levels

Question 8

What are the aims of an abbreviated laparotomy?

Accepted Answer

Hemostasis

Answer

Decreased chance of infection

Answer

Early ambulation

Answer

Early wound healing

Question 9

All of the following are true about pancreatic injury except?

Accepted Answer

Commonly isolated injuries occur

Answer

Penetrating injuries are common

Answer

Serum amylase is raised

Answer

Peritoneal lavage is not helpful for diagnosis

Question 10

What are the indications for celiotomy in blunt trauma?

Accepted Answer

Peritoneal air on imaging

Answer

Grade I spleen damage

Answer

Grade II liver damage

Answer

All of the above

Trauma — MCQs

Trauma — MCQs

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