Trauma — MCQs

Trauma Indian Medical PG Practice Questions and MCQs

Question 1101: In managing a patient with a large burn injury, what is the primary goal?

A. Immediate surgical debridement
B. Fluid resuscitation and hemodynamic stabilization (Correct Answer)
C. Prevent infection
D. Pain management

Explanation: ***Fluid resuscitation and hemodynamic stabilization*** - The immediate and most critical goal in managing large burn injuries is to restore and maintain **circulatory volume** to prevent **burn shock**. - Large burns lead to significant fluid shifts and electrolyte imbalances, making aggressive **fluid resuscitation** essential for survival. *Immediate surgical debridement* - While important, surgical debridement is typically not the **primary initial goal** and is often delayed until the patient is hemodynamically stable. - Performing extensive surgery on an unstable patient can lead to further **hemodynamic compromise** and increased risk. *Prevent infection* - Infection prevention is a crucial ongoing concern in burn management, but it is secondary to establishing **hemodynamic stability**. - A patient in shock is at a higher immediate risk of death than one developing a superimposed infection. *Pain management* - Pain management is a vital component of patient comfort and care, but it does not address the immediate **life-threatening physiological derangements** caused by large burns. - While important, pain control should not overshadow the priorities of **resuscitation** and stabilization.

Question 1102: What is the initial management for a patient with a suspected spinal cord injury at the scene of the trauma?

A. Immobilization of the spine (Correct Answer)
B. Administration of steroids
C. Immediate surgery
D. Pain management

Explanation: ***Immobilization of the spine*** - The primary goal at the scene of trauma with suspected spinal cord injury is to prevent further damage to the spinal cord. **Immobilization** using devices like a cervical collar and long backboard minimizes movement and protects the injured area. - This step is critical to preserving neurological function and is the **first and most important intervention** in prehospital care. *Administration of steroids* - Historically, high-dose **corticosteroids** (e.g., methylprednisolone) were used, but current evidence does not support their routine use due to lack of significant benefit and potential for serious side effects like **gastrointestinal bleeding** and **sepsis**. - Steroid administration is a medical decision made in a hospital setting, not an initial management step at the scene of trauma. *Immediate surgery* - **Surgery** for spinal cord injury is performed in a hospital setting, often to decompress the spinal cord, stabilize the spine, or reduce fractures. - It is not an initial management step at the scene of the trauma, where the focus is on **stabilization** and safe transport. *Pain management* - While **pain management** is important, it is secondary to **spinal immobilization** and stabilization in the immediate prehospital setting. - Administering analgesics without proper immobilization could mask neurological symptoms or compromise assessment.

Question 1103: A 25-year-old male presents with a deep partial-thickness burn on his forearm. What is the initial management step?

A. Debridement
B. Fluid resuscitation
C. Skin grafting
D. Cooling the burn (Correct Answer)

Explanation: ***Cooling the burn*** - **Cooling the burn** with tepid (room temperature) water is the immediate first aid step for a partial-thickness burn to reduce pain, decrease edema, and limit the depth of injury. - This should be done for 10-20 minutes, careful to avoid **hypothermia**, especially in larger burns or young children. *Debridement* - **Debridement** involves removing dead or contaminated tissue and is performed after initial cooling and assessment, typically in a clinical setting. - It is crucial for wound healing and infection prevention but is not the very first immediate step. *Fluid resuscitation* - **Fluid resuscitation** is critical for larger or deeper burns (typically >15-20% TBSA for adults) to prevent **burn shock** and maintain organ perfusion. - It is not the immediate first aid step for a localized, deep partial-thickness burn on the forearm. *Skin grafting* - **Skin grafting** is a surgical procedure used for deep second-degree burns that are unlikely to heal on their own or for third-degree burns. - It is a definitive treatment option, typically performed days to weeks after the injury, not an initial management step.

Question 1104: What type of burn injury is characterized by a deep red or cherry red coloration of the skin due to thermal injury?

A. Superficial burn
B. Full thickness burn
C. Deep partial thickness burn
D. Superficial partial thickness burn (Correct Answer)

Explanation: ***Superficial partial thickness burn*** - This burn extends into the **superficial dermis** and is characterized by a **deep red or cherry red appearance** due to dilated and damaged but still perfused capillaries. - The surface is typically **moist and weeping** with **prominent blisters** containing clear fluid. - These burns **blanch with pressure** and are **extremely painful** due to exposed nerve endings. - Classic example: severe scalding injury. *Superficial burn* - Also called first-degree burns, these only affect the **epidermis**. - Appears as **light red or pink** (like sunburn), not the deep cherry red of superficial partial thickness. - **No blisters** form, and the burn is dry with intact skin. *Deep partial thickness burn* - Extends into the **deep dermis** with a characteristic **mottled appearance** (pink, white, or waxy white). - Surface is typically **dry** rather than weeping, as deeper capillary damage reduces exudate. - **Less painful** or even painless due to partial nerve ending destruction. - May have **sluggish or absent blanching**. *Full thickness burn* - Destroys all skin layers including the entire dermis and sometimes subcutaneous tissue. - Appears **white, brown, leathery, or charred** — never cherry red. - **Completely painless** at the burn site due to complete nerve destruction. - No blanching occurs as there is no viable circulation.

Question 1105: What factors should be considered when deciding between limb salvage surgery and amputation for a patient with a severe traumatic injury to the lower extremity?

A. Extent of tissue damage, potential for functional recovery, and patient's lifestyle considerations. (Correct Answer)
B. Surgeon's skill level as the primary factor.
C. Cosmetic appearance alone.
D. Patient's immediate decision during trauma.

Explanation: ***Extent of tissue damage, potential for functional recovery, and patient's lifestyle considerations.*** - Extent of tissue damage is crucial, as severe damage to bone, muscle, nerves, and blood vessels may preclude successful limb salvage. - Potential for functional recovery and the patient's lifestyle considerations (e.g., occupation, recreational activities) are paramount in determining which option offers a better quality of life and functional outcome. - This approach aligns with established trauma scoring systems like the Mangled Extremity Severity Score (MESS). *Surgeon's skill level as the primary factor.* - While a surgeon's skill is important for any complex procedure, it is not the primary determinant for deciding between limb salvage and amputation. - The decision is multifactorial and heavily relies on the patient's specific injury characteristics and anticipated functional outcomes. *Cosmetic appearance alone.* - Cosmetic appearance is a minor consideration and seldom a primary factor in the decision-making process for severe traumatic lower extremity injuries. - The focus is on functional outcome, pain relief, and prevention of infection or further complications. *Patient's immediate decision during trauma.* - A patient's immediate decision during acute trauma is often influenced by pain, shock, and lack of complete information, making it an unreliable primary factor. - The decision requires a thorough medical evaluation, discussion with the patient and family, and consideration of long-term implications.

Question 1106: In trauma surgery, what is the initial fluid of choice for resuscitation?

A. Hypertonic saline
B. Ringer's lactate (Correct Answer)
C. Albumin
D. Fresh frozen plasma

Explanation: ***Ringer's lactate*** - **Ringer's lactate** is an **isotonic crystalloid solution** that closely resembles the electrolyte composition of plasma, making it the initial fluid of choice for resuscitation in trauma patients. - It effectively restores **intravascular volume** and corrects dehydration without causing major fluid shifts. *Hypertonic saline* - **Hypertonic saline** is typically used in specific situations like **traumatic brain injury** to reduce intracranial pressure, not as the initial fluid for general resuscitation. - It can cause rapid intracellular dehydration and **hypernatremia** if not used carefully. *Albumin* - **Albumin** is a **colloid solution** and is generally reserved for patients with severe hypoalbuminemia or refractory hypovolemia after crystalloid resuscitation has failed. - It is more expensive and has not shown superior outcomes over crystalloids for initial trauma resuscitation. *Fresh frozen plasma* - **Fresh frozen plasma (FFP)** is a blood product used to correct **coagulopathy** in bleeding trauma patients, not for initial fluid resuscitation. - It contains clotting factors but is not an ideal volume expander and carries risks associated with blood transfusions.

Question 1107: In an emergency department, a patient presents with a 'seatbelt sign' across the abdomen after a vehicle accident. Which internal organ is most at risk for injury in this scenario?

A. Liver
B. Spleen
C. Pancreas
D. Small intestine (Correct Answer)

Explanation: ***Small intestine*** - The **small intestine** is particularly vulnerable to injury in what is known as a **'seatbelt sign'** injury, which often involves compression between the seatbelt and the vertebral column. - This mechanism can lead to a **perforation**, tear, or avulsion of the small bowel, especially the jejunum or ileum. *Liver* - While the **liver** is susceptible to blunt trauma, particularly from direct impact to the upper right abdomen, it is less specifically implicated by the 'seatbelt sign' alone, which generally causes compressive injury across the mid-abdomen. - Liver injuries often result in significant **hemorrhage** due to its rich vascularity. *Spleen* - The **spleen** is one of the most commonly injured organs in blunt abdominal trauma but is usually associated with impact to the left upper quadrant, not primarily the 'seatbelt sign' which typically traverses the mid-abdomen. - Splenic injury can lead to **life-threatening internal bleeding**. *Pancreas* - The **pancreas** is a retroperitoneal organ that can be injured due to direct impact or rapid deceleration but is less frequently involved in isolated 'seatbelt sign' injuries compared to the hollow organs compressed against the spine. - Pancreatic injuries are often difficult to diagnose and can lead to **pancreatitis** or **fistulas**.

Question 1108: A patient with a basilar skull fracture may present with Battle's sign. What does Battle's sign indicate?

A. Bruising around the eyes; frontal bone fracture
B. Bruising behind the ears; temporal bone fracture (Correct Answer)
C. Blood in the sclera; ethmoid bone fracture
D. CSF rhinorrhea; sphenoid bone fracture

Explanation: **Bruising behind the ears; temporal bone fracture** - **Battle's sign** is ecchymosis or **bruising over the mastoid process**, which is located behind the ear. - It is a classic indicator of a basilar skull fracture involving the **temporal bone**. *Bruising around the eyes; frontal bone fracture* - Bruising around the eyes (**raccoon eyes**) is indicative of a basilar skull fracture, but typically suggests a fracture of the **anterior cranial fossa** (orbital roof, frontal bone). - Battle's sign specifically refers to bruising behind the ear. *Blood in the sclera; ethmoid bone fracture* - **Subconjunctival hemorrhage** (blood in the sclera) can occur due to head trauma, but it is not specifically referred to as Battle's sign. - While an **ethmoid bone fracture** can lead to orbital trauma, it is not the primary association with Battle's sign. *CSF rhinorrhea; sphenoid bone fracture* - **Cerebrospinal fluid (CSF) rhinorrhea** is the leakage of CSF from the nose, often indicating a fracture in the anterior or middle cranial fossa involving the **cribriform plate** or **sphenoid bone**. - This is a different sign than Battle's sign, which is purely ecchymosis.

Question 1109: A patient with a basilar skull fracture presents with Battle's sign and hearing loss. Which type of fracture is most likely?

A. Frontal bone fracture
B. Occipital bone fracture
C. Temporal bone fracture (Correct Answer)
D. Parietal bone fracture

Explanation: A **temporal bone fracture** is the most likely cause of **Battle's sign** (ecchymosis over the mastoid process) and **hearing loss**, as it directly involves the mastoid air cells and the structures of the middle and inner ear. Hearing loss can result from damage to the **ossicles**, **tympanic membrane**, or **cochlea**, all located within the temporal bone [1]. *Frontal bone fracture* - **Frontal bone fractures** are typically associated with periorbital ecchymosis (**raccoon eyes**) and potential cerebrospinal fluid (CSF) rhinorrhea, not Battle's sign or hearing loss [2]. - These fractures primarily affect the forehead region and the anterior cranial fossa [3]. *Occipital bone fracture* - **Occipital bone fractures** commonly result from high-impact trauma to the back of the head and may be associated with neurological deficits related to the posterior fossa, but typically not Battle's sign or hearing loss. - They are more likely to cause problems with **vision** or **balance** if the cerebellum or visual cortex is affected. *Parietal bone fracture* - **Parietal bone fractures** often present as linear or depressed skull fractures and are primarily associated with localized swelling and potential underlying **epidural** or **subdural hematomas** [3]. - They are not typically linked to Battle's sign or hearing loss, as these symptoms point to involvement of the temporal bone.

Question 1110: A patient presents with raccoon eyes following a head injury. What is the clinical significance of raccoon eyes and Battle's sign in the context of head trauma?

A. Raccoon eyes; suggests potential frontal lobe damage.
B. Battle's sign; implies potential injury to the temporal bone.
C. Battle's sign; indicates potential mastoid process fracture.
D. Both signs indicate skull fractures but suggest different types of injury. (Correct Answer)

Explanation: ***Both signs indicate skull fractures but suggest different types of injury.*** - Both **raccoon eyes** (periorbital ecchymosis) and **Battle's sign** (mastoid ecchymosis) are pathognomonic of **basilar skull fractures**. - **Raccoon eyes** typically indicate an **anterior basilar skull fracture** involving the floor of the anterior cranial fossa. - **Battle's sign** indicates a **posterior basilar skull fracture** involving the mastoid process of the temporal bone. - Both are late signs appearing 12-24 hours after injury and indicate the need for CT imaging and close monitoring. *Raccoon eyes; suggests potential frontal lobe damage.* - **Raccoon eyes** indicate **anterior basilar skull fracture**, not direct **frontal lobe damage**. - Frontal lobe damage would manifest with neurological deficits like personality changes, impaired judgment, or motor deficits, not just periorbital ecchymosis. - The ecchymosis results from blood tracking along tissue planes from the fracture site. *Battle's sign; implies potential injury to the temporal bone.* - While **Battle's sign** does indicate **temporal bone fracture**, this option is incomplete. - It fails to address the comparative significance with raccoon eyes or explain that both indicate basilar skull fractures. - This is a true but incomplete statement compared to the more comprehensive correct answer. *Battle's sign; indicates potential mastoid process fracture.* - **Battle's sign** correctly indicates **mastoid process fracture** (part of the temporal bone). - However, this option only describes Battle's sign without addressing the relationship to raccoon eyes. - Both signs have similar clinical significance as indicators of basilar skull fractures requiring similar management.

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Spinal Trauma

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Extremity Trauma

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Vascular Trauma

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Genitourinary Trauma

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Trauma — MCQs

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