Trauma Practice Questions

Q: Best treatment for stage III frostbite is:

Rapid rewarming. ***Rapid rewarming*** - This is the cornerstone of frostbite treatment, regardless of the stage, to minimize **cellular damage** and improve outcomes. - **Rapid rewarming** in a circulating water bath maintained at **37-39°C** is preferred, as it quickly restores tissue perfusion and reduces ice crystal formation. *Gradual thawing* - **Gradual thawing** is less effective than rapid rewarming and can lead to prolonged exposure to cold injury, increasing tissue damage due to continued cellular dehydration and **ice crystal growth**. - It does not provide the rapid restoration of blood flow necessary to prevent further ischemic injury. *Amputation* - **Amputation** is a last resort treatment for severe, irreversible tissue necrosis and is typically performed after the extent of tissue damage is clearly demarcated, often weeks after the initial injury. - It is not an immediate initial treatment for frostbite, even for severe stages, as tissue viability needs to be thoroughly assessed first. *Immediate surgical debridement* - **Immediate surgical debridement** is generally contraindicated in freeze injury because it is often difficult to distinguish viable from non-viable tissue early on. - Early debridement can lead to the unnecessary removal of tissue that might otherwise recover, and surgical intervention is usually delayed until demarcation is clear, typically weeks later.

Q: Which of the following is not a component of damage control surgery?

Definitive repair. ***Definitive repair*** - **Damage control surgery** is a staged approach for severely injured patients, prioritizing stabilization over complete repair. - **Definitive repair** is the goal of the final stage, after the patient's physiological status has improved, not an initial component. *Control of contamination* - This is a crucial early step in damage control surgery to prevent **sepsis** and further physiological deterioration. - It involves measures like **bowel repair** or diversion, and thorough abdominal lavage. *Control of hemorrhage* - This is the **primary immediate goal** of damage control surgery, often achieved through packing or temporary shunts. - Uncontrolled bleeding leads to the **lethal triad** of coagulopathy, hypothermia, and acidosis. *Temporary closure* - After addressing immediate life-threatening issues, the abdomen or other body cavity is temporarily closed to prevent **abdominal compartment syndrome**. - This allows time for patient resuscitation and correction of physiological derangements before definitive repair.

Q: Best guide for the management of Resuscitation is:

Urine output. ***Urine output*** - **Urine output** is considered the **gold standard** for assessing adequacy of resuscitation as it directly reflects **end-organ perfusion** and **tissue oxygenation**. A target of **0.5-1 mL/kg/hour** indicates adequate renal perfusion and overall circulatory status. - It serves as a reliable **endpoint of resuscitation** in trauma and critical care protocols, providing objective evidence that fluid resuscitation has achieved adequate **tissue perfusion** and **microcirculatory flow**. *Saturation of Oxygen* - While **oxygen saturation** is crucial for ensuring adequate **oxygen delivery** to tissues, it represents only one component of the oxygen delivery equation and doesn't reflect **tissue perfusion** adequacy. - Maintaining normal oxygen saturation does not guarantee adequate **end-organ perfusion** if cardiac output or tissue perfusion is compromised during resuscitation. *CVP* - **Central venous pressure** has poor correlation with actual **intravascular volume status** and **cardiac preload**, making it an unreliable guide for fluid resuscitation. - CVP measurements are influenced by multiple factors including **ventilator settings**, **tricuspid valve function**, and **chest wall compliance**, limiting its utility as a resuscitation endpoint. *Blood pressure* - While **blood pressure** provides immediate feedback on **circulatory status** and is emphasized in current **ACLS** and **ATLS** protocols as an immediate target, it may not accurately reflect **microcirculatory perfusion**. - Blood pressure can be maintained through **vasoconstriction** while **end-organ perfusion** remains inadequate, making it less reliable than urine output for assessing true resuscitation adequacy.

Q: Which is the most common type of skull fracture in road traffic accidents?

Linear. ***Linear*** - **Linear skull fractures** are the most common type, accounting for about 80% of all skull fractures. - They occur when there is an impact over a wide area and represent a **simple break in the bone** without displacement. *Comminuted* - A **comminuted fracture** involves the bone breaking into several fragments, rather than a single line. - This type of fracture is less common than linear fractures and usually results from a **high-impact force** applied to a smaller area. *Depressed* - A **depressed skull fracture** occurs when the bone is driven inward towards the brain, potentially causing brain compression or injury. - While serious, they are less common than linear fractures and are associated with **focused, high-energy impact**. *Basilar* - A **basilar skull fracture** involves a break in the bones at the base of the skull. - Although potentially severe due to proximity to cranial nerves and blood vessels, they are **relatively rare** compared to linear fractures, often presenting with specific signs like **raccoon eyes** or **Battle's sign**.

Q: A man presents with deep burns covering 60% of his body. What is the immediate concern?

Shock. ***Shock*** - With deep burns covering 60% of the body, the immediate and most critical concern is **hypovolemic shock** due to massive fluid shifting from the intravascular space into burnt tissues and interstitial spaces. - This rapid fluid loss leads to decreased circulatory volume, reduced cardiac output, and inadequate tissue perfusion, demanding urgent fluid resuscitation to prevent irreversible organ damage. *Infection* - While infection is a significant concern in burn patients, especially with extensive full-thickness burns, it is a **subsequent complication** that develops over hours to days rather than an immediate concern in the first few minutes or hours. - The initial threat to life is circulatory collapse from fluid loss, not septicemia from infection. *Sepsis* - Sepsis is a systemic response to infection and typically manifests **later in the course** of burn injury, after infection has set in and multiplied. - It involves a complex inflammatory cascade and organ dysfunction, but the most immediate life-threatening problem upon presentation is the acute fluid shift leading to shock. *Organ failure* - Organ failure can be a devastating consequence of severe burn injury, often as a result of prolonged **hypoperfusion** and **shock** if not promptly managed. - However, in the immediate presentation, organ failure is a potential outcome of untreated shock rather than the primary immediate concern itself.

Q: Case of trauma in a patient with an unknown blood group. Patient is unstable and requires urgent blood transfusion. Which type of blood should be transfused?

O-. ***O-*** - **O-negative blood** is considered the **universal donor** because it lacks A, B, and Rh (D) antigens, making it safe for transfusion to patients of any blood type in an emergency. - In a critically unstable patient with an unknown blood group requiring urgent transfusion, using **O-negative blood minimizes the risk of a severe acute hemolytic transfusion reaction**. *AB+* - **AB-positive blood** is the **universal recipient** blood type, meaning individuals with AB+ blood can receive blood from any donor. - However, transfusing AB+ blood to a patient with an unknown blood type could lead to a **severe hemolytic reaction** if the patient is not AB+. *O+* - While **O-positive blood** is common and can be given to individuals who are Rh-positive, it contains the **Rh antigen**. - Transfusing O-positive blood to an Rh-negative patient (whose Rh status is unknown in this emergency) could cause **alloimmunization** and a hemolytic reaction. *A+* - **A-positive blood** contains A antigens and Rh antigens. - Giving A-positive blood to a patient with an unknown blood type is risky, as it would cause a **hemolytic reaction** if the patient is B, AB, or O, or if they are Rh-negative.

Q: Which of the following is not done in the primary survey of trauma?

NCCT head. ***NCCT head*** - A **Non-Contrast CT (NCCT) head** is typically performed during the **secondary survey** once the patient is hemodynamically stable and life-threatening conditions have been addressed. - The primary survey focuses on immediate **life-saving interventions** for airway, breathing, circulation, disability, and exposure. *Intubation* - **Intubation** is a critical intervention during the primary survey, specifically under the **'A' (Airway)** component, to establish and secure a patent airway in a compromised patient. - Failure to establish an airway can rapidly lead to **hypoxia** and death. *ICD drainage* - **Intercostal drain (ICD) drainage** is an urgent intervention in the primary survey, falling under **'B' (Breathing)**, to manage conditions like **tension pneumothorax** or massive hemothorax. - These conditions can severely compromise ventilation and circulation, requiring immediate relief. *CXR* - A **Chest X-ray (CXR)** is a rapid and essential diagnostic tool in the primary survey, also under **'B' (Breathing)**, to identify life-threatening thoracic injuries such as pneumothorax, hemothorax, or mediastinal shift. - It provides quick information crucial for immediate management decisions.

Q: A 25-year-old male presents with a penetrating abdominal injury following a motor vehicle accident and is hemodynamically unstable. What is the immediate management step?

Immediate exploratory laparotomy. ***Immediate exploratory laparotomy*** - A patient with a **penetrating abdominal injury** who is **hemodynamically unstable** requires immediate surgical intervention to control hemorrhage and investigate organ damage. - Delaying surgery in such cases can lead to irreversible shock and death due to unchecked bleeding. *Perform a focused assessment with sonography for trauma (FAST)* - While FAST is a valuable tool for detecting intra-abdominal fluid in trauma, it is **not the immediate management step** when a hemodynamically unstable patient has a clear penetrating abdominal injury. - The results of a FAST scan would not change the need for immediate surgical exploration in this critical scenario. *Administer antibiotics and observe* - Administering antibiotics is a supportive measure and is **insufficient as the primary management** for a hemodynamically unstable patient with a penetrating abdominal injury. - Observation would be dangerous as the patient is actively bleeding or has significant internal organ damage. *Perform a diagnostic peritoneal lavage* - **Diagnostic peritoneal lavage (DPL)** is a sensitive method for detecting intra-abdominal injury, but it is **more invasive and time-consuming** than a FAST scan and less appropriate than immediate laparotomy in an unstable patient with a clear indication for surgery. - In a hemodynamically unstable patient with a penetrating injury, DPL would only confirm what is already suspected and delay definitive treatment.

Q: What is the preferred management approach for third-degree burns in terms of infection control, hospital stay, and functional recovery?

Early excision and grafting for third-degree burns. ***Early excision and grafting for third-degree burns*** - **Early tangential excision** followed by **autografting** is the gold standard for third-degree burns to minimize **infection risk**, reduce hospital stay, and improve functional outcomes. - This approach removes **necrotic tissue** that serves as a medium for bacterial growth and prepares the wound bed for definitive closure. *Conservative management followed by grafting* - Conservative management with dressings for **third-degree burns** can lead to prolonged healing, increased risk of **infection**, and significant scarring. - It also delays the definitive closure of the wound, potentially worsening functional recovery and extending hospital stays. *Selective early excision based on burn severity* - While excision can be "selective" for certain types of burns, third-degree burns are by definition **full-thickness** and require complete removal of damaged tissue. - Delaying the excision of **third-degree burns** increases the risk of infection and complications, making the "selective" aspect less applicable in a blanket fashion for full-thickness injuries. *Use of synthetic skin substitutes in burn treatment* - Synthetic skin substitutes are often used as temporary cover or in conjunction with autografts, rather than as the primary definitive treatment for **third-degree burns**. - They do not provide the same long-term durability and functionality as **autologous skin grafts** and may require multiple procedures or subsequent grafting.

Q: A hemodynamically unstable patient with blunt abdominal trauma has a FAST exam that is positive for fluid in the hepatorenal recess. What is the most appropriate management?

Immediate exploratory laparotomy. ***Immediate exploratory laparotomy*** - A positive FAST exam identifying **free fluid** in a **hemodynamically unstable** patient with blunt abdominal trauma indicates significant **intraperitoneal bleeding** requiring immediate surgical intervention. - In unstable patients, emergent **exploratory laparotomy** is the standard of care to control hemorrhage and definitively manage injuries per **ATLS guidelines**. - Hemodynamic instability (hypotension, tachycardia unresponsive to resuscitation) with a positive FAST mandates immediate surgical exploration. *CT scan of the abdomen and pelvis* - CT scan is the appropriate next step for **hemodynamically stable** patients with a positive FAST to characterize the injury and guide management. - Many solid organ injuries can be managed **non-operatively** in stable patients. - In an **unstable** patient, delaying surgery for CT scanning risks exsanguination and is contraindicated. *Repeat FAST in 6 hours* - This approach is reserved for **hemodynamically stable** patients with an initial **negative or equivocal** FAST but ongoing clinical concern. - Repeating FAST in an unstable patient with a clearly positive exam delays life-saving intervention and is inappropriate. *Diagnostic peritoneal lavage* - While DPL can detect **intraperitoneal bleeding**, it has been largely replaced by **FAST** and **CT scan** in modern trauma protocols. - A positive FAST already confirms free fluid, making DPL redundant and unnecessarily invasive.

Question 1

Best treatment for stage III frostbite is:

Accepted Answer

Rapid rewarming

Answer

Gradual thawing

Answer

Amputation

Answer

Immediate surgical debridement

Question 2

Which of the following is not a component of damage control surgery?

Accepted Answer

Definitive repair

Answer

Control of contamination

Answer

Control of hemorrhage

Answer

Temporary closure

Question 3

Best guide for the management of Resuscitation is:

Accepted Answer

Urine output

Answer

Saturation of Oxygen

Answer

CVP

Answer

Blood pressure

Question 4

Which is the most common type of skull fracture in road traffic accidents?

Accepted Answer

Linear

Answer

Comminuted

Answer

Depressed

Answer

Basilar

Question 5

A man presents with deep burns covering 60% of his body. What is the immediate concern?

Accepted Answer

Shock

Answer

Infection

Answer

Sepsis

Answer

Organ failure

Question 6

Case of trauma in a patient with an unknown blood group. Patient is unstable and requires urgent blood transfusion. Which type of blood should be transfused?

Accepted Answer

O-

Answer

AB+

Answer

O+

Answer

A+

Question 7

Which of the following is not done in the primary survey of trauma?

Accepted Answer

NCCT head

Answer

Intubation

Answer

ICD drainage

Answer

CXR

Question 8

A 25-year-old male presents with a penetrating abdominal injury following a motor vehicle accident and is hemodynamically unstable. What is the immediate management step?

Accepted Answer

Immediate exploratory laparotomy

Answer

Perform a focused assessment with sonography for trauma (FAST)

Answer

Administer antibiotics and observe

Answer

Perform a diagnostic peritoneal lavage

Question 9

What is the preferred management approach for third-degree burns in terms of infection control, hospital stay, and functional recovery?

Accepted Answer

Early excision and grafting for third-degree burns

Answer

Conservative management followed by grafting

Answer

Selective early excision based on burn severity

Answer

Use of synthetic skin substitutes in burn treatment

Question 10

A hemodynamically unstable patient with blunt abdominal trauma has a FAST exam that is positive for fluid in the hepatorenal recess. What is the most appropriate management?

Accepted Answer

Immediate exploratory laparotomy

Answer

Repeat FAST in 6 hours

Answer

Diagnostic peritoneal lavage

Answer

CT scan of the abdomen and pelvis

Trauma — MCQs

Trauma — MCQs

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