Initial Assessment of Trauma Patients — MCQs
Initial fluid of choice in treatment of hypovolemia in patients presenting after trauma is
Investigation of choice in an unstable patient with suspected intra-abdominal injury is -
In the initial management of a hemodynamically unstable polytrauma patient, what is the recommended initial crystalloid bolus dose of Ringer's lactate for assessment and stabilization?
Which color indicates the highest priority in triage?
Most important primary care in Faciomaxillary trauma is to:
What is the investigation of choice in a patient with traumatic paraplegia?
Ambulatory patients after a disaster are categorized into what color of triage?
What is to be addressed first in case of polytrauma -
What is the correct sequence of management in a patient who presents to the casualty with an RTA? 1. Cervical spine stabilization 2. Intubation 3. IV cannulation 4. CECT
Which is not a component of Lethal Triad in trauma?
Initial Assessment of Trauma Patients Indian Medical PG Practice Questions and MCQs
Question 1: Initial fluid of choice in treatment of hypovolemia in patients presenting after trauma is
- A. Blood
- B. Colloid
- C. Plasma expanders
- D. Crystalloid (Correct Answer)
Explanation: ***Crystalloid*** - **Crystalloids** such as normal saline or lactated Ringer's solution are the initial fluid of choice for **hypovolemia in trauma patients** due to their ready availability, low cost, and effectiveness in rapidly expanding the intravascular volume. - They freely distribute across the extracellular space, effectively compensating for fluid loss and supporting organ perfusion. *Blood* - While essential for significant **hemorrhage**, blood products are typically reserved for patients who do not respond to crystalloid resuscitation or have documented severe blood loss. - Transfusion carries risks such as **transfusion reactions**, and blood preparation and cross-matching take time, making them less suitable for initial, rapid fluid replacement. *Colloid* - **Colloids** (e.g., albumin, starches) are larger molecules that theoretically remain in the intravascular space longer, but their benefits over crystalloids in trauma are controversial and they are significantly more expensive. - Some colloids have been associated with adverse effects like **renal dysfunction** or **coagulopathy**, making crystalloids a safer initial option. *Plasma expanders* - **Plasma expanders** is a broad term that includes both colloids and some hypertonic crystalloid solutions, but it is not commonly used as a primary, specific category for initial fluid resuscitation. - The potential benefits of these agents are still debated, and they are typically not recommended as the first-line choice in the acute management of **traumatic hypovolemic shock**.
Question 2: Investigation of choice in an unstable patient with suspected intra-abdominal injury is -
- A. USG (FAST) (Correct Answer)
- B. CT scan
- C. X-ray abdomen
- D. DPL
Explanation: ***USG*** - **Focused assessment with sonography for trauma (FAST) exam** is the investigation of choice in an **unstable patient** due to its rapid, non-invasive nature and ability to detect free fluid (blood) in the peritoneal, pericardial, and pleural spaces. - It can be performed at the **bedside** without moving the patient, making it ideal for hemodynamically unstable individuals with suspected intra-abdominal injury. *CT scan* - While a **CT scan** provides detailed anatomical information, it requires the patient to be stable enough for transport to a radiology suite and prolonged scanning time. - It is often difficult to obtain in **unstable patients** who may require continuous resuscitation and monitoring. *X-ray abdomen* - An **X-ray abdomen** has limited utility for detecting intra-abdominal injuries and primarily identifies issues like free air under the diaphragm (suggesting hollow organ perforation) or foreign bodies. - It is **not sensitive** for detecting free fluid (hemoperitoneum) or solid organ injuries, which are critical in trauma. *DPL* - **Diagnostic peritoneal lavage (DPL)** is an invasive procedure that involves inserting a catheter into the peritoneal cavity to detect blood or other fluid. - While sensitive, it is **invasive**, can complicate subsequent imaging, and has largely been replaced by the FAST exam due to the latter's non-invasive nature and comparable diagnostic accuracy for free fluid.
Question 3: In the initial management of a hemodynamically unstable polytrauma patient, what is the recommended initial crystalloid bolus dose of Ringer's lactate for assessment and stabilization?
- A. 2000 ml Ringer's lactate bolus
- B. 1000 ml Ringer's lactate bolus, then regulated by clinical indicators (Correct Answer)
- C. 250 ml Ringer's lactate bolus
- D. 500 ml Ringer's lactate bolus, then regulated by clinical indicators
Explanation: ***1000 ml Ringer's lactate bolus, then regulated by clinical indicators*** - For **hemodynamically unstable** polytrauma patients, the initial recommended crystalloid bolus is typically **1 liter (1000 mL)** of Ringer's lactate. - This initial bolus allows for rapid assessment of the patient's response and guides subsequent fluid management based on **clinical indicators** such as blood pressure, heart rate, and urine output, avoiding over-resuscitation. *2000 ml Ringer's lactate bolus* - A **2000 ml bolus** is generally considered too large for an initial dose in trauma, as it can lead to **dilutional coagulopathy**, worsening hemorrhage, and **abnormal fluid shifts**, especially in cases where definitive hemorrhage control is not yet achieved. - Excessive fluid administration can lead to complications such as **abdominal compartment syndrome** and **acute respiratory distress syndrome (ARDS)**. *250 ml Ringer's lactate bolus* - A **250 ml bolus** is generally too small to effectively address **hemodynamic instability** in a polytrauma patient, offering insufficient volume to significantly improve circulation or organ perfusion. - While small boluses might be used in specific situations (e.g., small children or patients with cardiac comorbidities), this dose is not adequate for initial resuscitation in a severely unstable adult trauma patient. *500 ml Ringer's lactate bolus, then regulated by clinical indicators* - While **500 mL** is a common bolus size in other medical settings, it may be insufficient for the initial resuscitation of a **hemodynamically unstable adult polytrauma patient**. - Current trauma guidelines often recommend a larger initial bolus (e.g., 1000 mL) to gain a more immediate and measurable hemodynamic response for assessment.
Question 4: Which color indicates the highest priority in triage?
- A. Red (Correct Answer)
- B. Yellow
- C. Green
- D. Black
Explanation: ***Correct: Red*** - The color **red** is universally used in triage systems to designate the **highest priority** patients, indicating immediate threats to life or limb. - Patients triaged as red require **immediate intervention** and transport to maximize their chances of survival. *Incorrect: Yellow* - **Yellow** indicates a **delayed priority**, meaning patients have serious injuries but their conditions are not immediately life-threatening. - These patients can typically wait for a few hours before receiving definitive medical care. *Incorrect: Green* - **Green** is assigned to patients with **minor injuries** or illnesses that are unlikely to deteriorate over time. - They are considered walking wounded and can often wait for an extended period or be treated with minimal resources. *Incorrect: Black* - **Black** signifies **deceased** or expectant patients, indicating those whose injuries are so severe that survival is unlikely given the available resources. - Resources are typically withheld from these patients to prioritize those with a higher chance of survival.
Question 5: Most important primary care in Faciomaxillary trauma is to:
- A. Ensure adequate airway (Correct Answer)
- B. Look for CNS injury
- C. Immediate fracture reduction
- D. Assess the level of consciousness
Explanation: ***Ensure adequate airway*** - In **faciomaxillary trauma**, swelling, bleeding, and displaced bone fragments can rapidly obstruct the airway, making immediate airway management the top priority. - An obstructed airway leads to hypoxia, which can cause irreversible damage or death within minutes. *Look for CNS injury* - While important, **central nervous system (CNS) injury** assessment is secondary to airway management in the immediate primary care setting. - If the airway is compromised, the patient will not survive long enough for a detailed neurological examination to be beneficial. *Immediate fracture reduction* - **Immediate fracture reduction** is a definitive treatment that is typically performed after the patient's airway, breathing, and circulation (ABCs) have been secured. - Attempting fracture reduction before ensuring a stable airway can worsen the patient's condition or interfere with life-saving interventions. *Assess the level of consciousness* - Assessing the **level of consciousness** is part of the neurological examination, which is crucial but typically follows the immediate stabilization of the airway. - A patient with an unstable airway will quickly lose consciousness due to hypoxia, making airway management paramount for preserving brain function.
Question 6: What is the investigation of choice in a patient with traumatic paraplegia?
- A. Myelography
- B. CT scan
- C. MRI scan (Correct Answer)
- D. Plain X-ray
Explanation: ***MRI scan*** - An **MRI scan** provides superior imaging of **soft tissues**, including the spinal cord, nerves, and ligaments, which are crucial for assessing damage in **traumatic paraplegia**. - It is essential for detecting **spinal cord compression**, hemorrhage, edema, and ligamentous injuries that may not be visible on other imaging modalities. *Plain X-ray* - A **plain X-ray** primarily visualizes bony structures and can detect major **fractures or dislocations** but offers limited information about the spinal cord or soft tissue damage. - It may miss subtle bony injuries and provides no information on **spinal cord integrity**, which is critical in paraplegia. *Myelography* - **Myelography** involves injecting contrast dye into the spinal canal and then performing X-rays or CT scans, which is an **invasive procedure** with potential risks. - While it can demonstrate **spinal cord compression** indirectly, it has largely been replaced by MRI due to its invasiveness and MRI's direct visualization capabilities. *CT scan* - A **CT scan** is excellent for evaluating **bony injuries**, such as vertebral fractures and alignment, with good detail. - However, it is less effective than MRI for directly visualizing the **spinal cord itself** and assessing soft tissue damage, which is paramount in paraplegia.
Question 7: Ambulatory patients after a disaster are categorized into what color of triage?
- A. Red
- B. Yellow
- C. Green (Correct Answer)
- D. Black
Explanation: ***Green*** - **Green tag** is for the walking wounded, meaning those with minor injuries who can move independently and do not require immediate medical attention. - These patients can often assist with **their own care** or aid others, and their treatment can be delayed. *Red* - **Red tag** patients have critical, life-threatening injuries that require immediate intervention to save life or limb. - This category includes conditions like **severe bleeding**, shock, or airway compromise. *Yellow* - **Yellow tag** is assigned to patients with serious injuries that are not immediately life-threatening but require definitive treatment within a few hours. - Examples include **stable fractures**, moderate burns, or significant but controlled bleeding. *Black* - **Black tag** indicates patients who are deceased or have injuries so severe that survival is unlikely even with maximal medical care. - Resources are diverted from these patients to those with a higher chance of survival, to **maximize overall saved lives**.
Question 8: What is to be addressed first in case of polytrauma -
- A. Circulation
- B. Neurology
- C. Blood Pressure
- D. Airway (Correct Answer)
Explanation: ***Airway*** - Maintaining a **patent airway** is the absolute first priority in polytrauma management according to the **ATLS (Advanced Trauma Life Support)** protocol. - Failure to secure an airway can lead to **hypoxia** and **brain damage** within minutes, regardless of other injuries. *Circulation* - While critical, addressing **circulation** (C in ABCDE) comes after establishing a secure airway and adequate breathing (A and B). - Uncontrolled hemorrhage would be the focus of circulation management, but only after guaranteeing proper oxygenation. *Neurology* - Neurological assessment (D in ABCDE for Disability) follows the primary survey of airway, breathing, and circulation. - Initial neurological evaluation focuses on **level of consciousness** using the **GCS (Glasgow Coma Scale)**. *Blood Pressure* - **Blood pressure** is an indicator of circulatory status but is not the first thing to be addressed. - It falls under the "C" for circulation in the ATLS protocol, which is secondary to airway and breathing.
Question 9: What is the correct sequence of management in a patient who presents to the casualty with an RTA? 1. Cervical spine stabilization 2. Intubation 3. IV cannulation 4. CECT
- A. 2,1,4,3
- B. 1,3,2,4
- C. 2,1,3,4
- D. 1,2,3,4 (Correct Answer)
Explanation: ***1,2,3,4*** - This sequence follows the **ATLS (Advanced Trauma Life Support)** protocol, prioritizing immediate life threats in order. - **Cervical spine stabilization** is the **first action upon patient contact** to prevent secondary neurological injury in any trauma patient. - **Airway management (intubation)** is then performed **with maintained in-line c-spine stabilization** - these occur nearly simultaneously but c-spine protection is instituted first. - **IV cannulation (circulation)** follows to establish vascular access for resuscitation and medications. - **CECT (imaging)** is performed last, once the patient is stabilized after addressing immediate life threats. - This follows the **ATLS Primary Survey: Airway (with c-spine protection) → Breathing → Circulation → Disability → Exposure**. *2,1,4,3* - This incorrectly places intubation **before** cervical spine stabilization is initiated. - In ATLS, **c-spine protection must be applied immediately upon patient contact** before any airway manipulation. - Delaying IV cannulation until after CECT is inappropriate as circulatory access is critical for early resuscitation. *1,3,2,4* - While this correctly starts with cervical spine stabilization, it incorrectly places **IV cannulation before intubation**. - In the ATLS primary survey, **Airway comes before Circulation** - securing the airway takes priority over establishing IV access. - This sequence could delay critical airway management in a patient with respiratory compromise. *2,1,3,4* - This sequence places **intubation before cervical spine stabilization**, which violates ATLS principles. - **C-spine stabilization must be the first action** upon approaching any trauma patient to prevent secondary spinal cord injury. - While intubation with in-line stabilization is possible, the c-spine protection must be instituted first, not after beginning airway manipulation.
Question 10: Which is not a component of Lethal Triad in trauma?
- A. Hypothermia
- B. Coagulopathy
- C. Acidosis
- D. Hypoxia (Correct Answer)
Explanation: ***Hypoxia*** - The **lethal triad** of trauma consists of **hypothermia, acidosis, and coagulopathy**, which are critical factors that worsen outcomes in severely injured patients. - While **hypoxia** is a serious complication in trauma and can contribute to other elements of the triad, it is not considered one of the three direct components of the **lethal triad** itself. *Hypothermia* - **Hypothermia** contributes to the lethal triad by impairing enzyme function and exacerbating coagulopathy, leading to increased bleeding. - It results in decreased platelet function and reduced activity of clotting factors. *Coagulopathy* - **Coagulopathy** is a central component, as uncontrolled bleeding due to impaired coagulation is a major cause of death in severe trauma. - It can be induced by massive blood loss, resuscitation with crystalloids, and consumption of clotting factors. *Acidosis* - **Acidosis**, often due to hypoperfusion and shock, impairs myocardial function and further inhibits the clotting cascade. - It is often worsened by inadequate tissue oxygenation and lactate accumulation.
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