Triage and First Response — MCQs
What is triage for?
Which color indicates the highest priority in triage?
You are working in a primary health center (PHC) situated in a high seismic zone. Which of the following actions should you take as part of preparedness for an emergency?
Ambulatory patients after a disaster are categorized into what color of triage?
In triage, which category of patients is classified as green?
What is the correct chronological order in the disaster management cycle?
What is the molecular mass of Immunoglobulin G (IgG) in kilodaltons (kDa)?
In an incised wound, all of the following are true, except:
Following a major earthquake, a regional hospital manages both survivors and victim identification. The forensic team faces: limited DNA lab capacity (30 samples/week), 200 bodies, pressure from families for quick release, and presence of closed casket bodies (intact) versus open/fragmented remains. As the coordinating forensic expert, evaluate and prioritize the identification strategy balancing ethical, legal, and practical considerations.
A forensic team managing a mass disaster has identified 80 out of 100 victims using primary identifiers. For the remaining 20 highly fragmented bodies, multiple body parts potentially belonging to the same individual are tagged with different numbers. Family reference DNA samples are available. Evaluate the best protocol to avoid mismatching and ensure accurate reassociation of body parts.
Triage and First Response Indian Medical PG Practice Questions and MCQs
Question 1: What is triage for?
- A. To rehabilitate following a disaster
- B. To prepare for a disaster
- C. To classify the priority of treatment (Correct Answer)
- D. To assess the impact of a disaster
Explanation: ***To classify the priority of treatment*** - **Triage** is the process of sorting patients to determine the **priority** of their treatment based on the **severity** of their condition and the likelihood of recovery, especially when resources are limited. - This system ensures that those who need immediate care most urgently receive it first, maximizing the number of lives saved. *To rehabilitate following a disaster* - **Rehabilitation** focuses on restoring health and functional abilities after an injury or illness, which occurs **post-treatment**, not as the initial classification of need. - This phase of care happens *after* triage has been completed and immediate medical needs have been addressed. *To prepare for a disaster* - **Disaster preparedness** involves planning and training *before* a disaster strikes to mitigate its effects and ensure an effective response. - Triage is a **response mechanism** utilized *during* or *immediately after* a disaster, not a preparatory measure. *To assess the impact of a disaster* - **Impact assessment** involves evaluating the damage, casualties, and overall consequences of a disaster. - While disaster impact assessment helps guide overall response, triage is specifically about **individual patient assessment** and prioritization for medical care.
Question 2: 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 3: You are working in a primary health center (PHC) situated in a high seismic zone. Which of the following actions should you take as part of preparedness for an emergency?
- A. Ensure all financial and other resources are available for disaster preparedness.
- B. Increase public awareness through campaigns and loudspeakers.
- C. Follow instructions given over the phone or radio by higher officials.
- D. Conduct a simulation for the disaster and assess the response. (Correct Answer)
Explanation: ***Conduct a simulation for the disaster and assess the response.*** - **Simulation exercises** are crucial for testing the effectiveness of a disaster preparedness plan and identifying weaknesses in the response system. - This allows for refinement of protocols, training of personnel, and ensuring that all team members understand their roles during an actual emergency. *Ensure all financial and other resources are available for disaster preparedness.* - While important for effective disaster management, simply "ensuring" resources are available is not an action of preparedness, but rather an **enabling condition**. - This statement focuses on the availability of resources rather than a proactive step to prepare the PHC for an emergency. *Increase public awareness through campaigns and loudspeakers.* - **Public awareness campaigns** are vital for community preparedness, but this action is primarily for the general population and not a specific preparedness action for the PHC itself in terms of its operational readiness. - While a PHC might be involved in public awareness, its core preparedness involves internal actions to ensure its functionality during a disaster. *Follow instructions given over the phone or radio by higher officials.* - This describes a reaction during or immediately before a disaster, rather than a proactive **preparedness measure**. - Relying solely on real-time instructions from higher officials during an emergency without prior planning can lead to delays and inefficiencies.
Question 4: 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 5: In triage, which category of patients is classified as green?
- A. Medium risk patients
- B. High-risk patients
- C. Dead patients
- D. Minor injury patients (Correct Answer)
Explanation: ***Minor injury patients*** - Patients classified as **green** in triage are those with **minor injuries** that are not immediately life-threatening. - They can often wait for treatment without significant risk of deterioration and may be able to **walk and self-care** to some extent. *Medium risk patients* - This category generally corresponds to **yellow** in triage, indicating patients with **significant injuries** who require care within a few hours. - While not immediately life-threatening, their condition could worsen if treatment is delayed. *High-risk patients* - This category typically corresponds to **red** in triage, signifying patients with **life-threatening injuries** or conditions. - These patients require immediate medical attention to survive. *Dead patients* - Patients who are deceased or have injuries incompatible with life are typically categorized as **black** in triage. - This classification indicates that no medical intervention can save them.
Question 6: What is the correct chronological order in the disaster management cycle?
- A. Impact → Response → Rehabilitation → Mitigation
- B. Response → Rehabilitation → Mitigation → Impact
- C. Rehabilitation → Mitigation → Response → Impact
- D. Mitigation → Impact → Response → Rehabilitation (Correct Answer)
Explanation: ***Mitigation → Impact → Response → Rehabilitation*** - Among the given options, this represents the most **logical chronological sequence** in disaster management - **Mitigation** (risk reduction) occurs before a disaster as preventive measures - **Impact** represents the disaster event occurrence (though technically not a "management phase" but the event itself) - **Response** involves immediate emergency actions during and after the disaster - **Rehabilitation** encompasses recovery and long-term rebuilding efforts - **Note:** The standard disaster management cycle typically includes Mitigation → Preparedness → Response → Recovery, but this option best represents the temporal flow among the choices provided *Impact → Response → Rehabilitation → Mitigation* - Incorrectly places **Impact** first, ignoring that **mitigation** activities occur before disasters as preventive measures - Places **Mitigation** at the end rather than as an ongoing proactive process *Response → Rehabilitation → Mitigation → Impact* - Illogical sequence starting with **Response** before any disaster has occurred - Places **Impact** at the end, which contradicts the temporal nature of disaster occurrence - Fails to recognize mitigation as a preventive stage *Rehabilitation → Mitigation → Response → Impact* - Completely inverted sequence starting with **Rehabilitation** before a disaster has occurred - Does not follow the natural chronological progression of disaster events and management activities - Positions response and impact in an illogical order
Question 7: What is the molecular mass of Immunoglobulin G (IgG) in kilodaltons (kDa)?
- A. 150 (Correct Answer)
- B. 400
- C. 1000
- D. 1500
Explanation: **\*Correct Option: 150 kDa\*** - **Immunoglobulin G (IgG)** is the most abundant antibody in human serum and has a characteristic molecular mass of approximately **150 kDa**. - This mass is attributed to its structure, comprising two identical **heavy chains** (~50 kDa each) and two identical **light chains** (~25 kDa each). - IgG represents about **75-80% of total serum immunoglobulins** and is the main antibody involved in secondary immune responses. *Incorrect Option: 400 kDa* - A molecular mass of **400 kDa** is significantly higher than that of a monomeric IgG molecule. - This mass is closer to **IgM pentamers** (~900 kDa) or large protein complexes, but still does not match any standard immunoglobulin structure. *Incorrect Option: 1000 kDa* - A molecular mass of **1000 kDa (1 MDa)** is far too large for a single IgG molecule. - This weight typically corresponds to very large macromolecular structures or aggregates, such as **ribosomes** or large enzyme complexes. *Incorrect Option: 1500 kDa* - A molecular mass of **1500 kDa (1.5 MDa)** is extremely large for an individual antibody. - Such a mass would be characteristic of very large protein assemblies, viral capsids, or cellular components, not a soluble antibody.
Question 8: In an incised wound, all of the following are true, except:
- A. Tailing is often present
- B. It has clean-cut margins
- C. Bleeding is generally less than in lacerations (Correct Answer)
- D. Length of injury does not correspond with length of blade
Explanation: ***Bleeding is generally less than in lacerations*** - Incised wounds, due to their **clean-cut nature** and often transected blood vessels, typically result in **more profuse external bleeding** compared to lacerations. - Lacerations often have torn vessels and crushed tissue, which can promote **hemostasis** to some degree, leading to less external bleeding than deep incised wounds. *Tailing is often present* - **Tailing** refers to the superficial beginning and ending of an incised wound, appearing as a shallow scratch. - This feature is characteristic of incised wounds created by a **sharp object drawn across the skin**. *It has clean-cut margins* - Incised wounds are caused by **sharp-edged instruments** that slice through tissue, resulting in margins that are smooth, sharp, and without significant tissue damage. - The absence of crushing or tearing around the wound edges is a hallmark of an incised wound. *Length of injury does not correspond with length of blade* - The length of an incised wound can often be **longer than the width of the blade** (e.g., a small knife producing a long wound) or **shorter than the blade's full length** if only a part of the blade comes into contact with the skin. - This lack of direct correlation is important for forensic analysis in determining the nature of the weapon.
Question 9: Following a major earthquake, a regional hospital manages both survivors and victim identification. The forensic team faces: limited DNA lab capacity (30 samples/week), 200 bodies, pressure from families for quick release, and presence of closed casket bodies (intact) versus open/fragmented remains. As the coordinating forensic expert, evaluate and prioritize the identification strategy balancing ethical, legal, and practical considerations.
- A. Immediate release of closed casket bodies to families after visual identification; DNA testing for fragmented remains only
- B. Process all bodies through DNA testing in order of recovery, release bodies as results come; maintain equity
- C. Establish community identification committees for visual identification of intact bodies; reserve DNA for disputed cases only
- D. Stratified approach: Fast-track closed casket bodies using fingerprints/dental records; prioritize DNA for fragmented/decomposed remains; establish provisional identification with final DNA confirmation for complex cases (Correct Answer)
Explanation: ***Stratified approach: Fast-track closed casket bodies using fingerprints/dental records; prioritize DNA for fragmented/decomposed remains; establish provisional identification with final DNA confirmation for complex cases*** - This approach balances **efficiency and accuracy** by utilizing faster primary identifiers like **fingerprints and dental records** for intact remains while reserving limited **DNA lab capacity** for complex cases. - It addresses **ethical concerns** by reducing wait times for families and maintains **legal standards** by avoiding the high error rates associated with purely visual identification. *Immediate release of closed casket bodies to families after visual identification; DNA testing for fragmented remains only* - **Visual identification** is notoriously unreliable in mass disasters due to emotional trauma and post-mortem changes, risking **legal and psychological complications** from misidentification. - Relying solely on sight for release ignores more robust primary identifiers like **odontology** which are necessary for forensic validity. *Process all bodies through DNA testing in order of recovery, release bodies as results come; maintain equity* - This method creates a massive **bottleneck** due to the limited capacity of 30 samples/week, causing unnecessary delays of several months for hundreds of families. - It ignores the **triage principle** in forensic identification where simpler, faster methods should be used first to manage **resource constraints**. *Establish community identification committees for visual identification of intact bodies; reserve DNA for disputed cases only* - **Community committees** lack the required **forensic rigor** and professional expertise to provide legally defensible identification in a mass casualty event. - This strategy increases the risk of **false positives**, where multiple families might claim the same remains, leading to further social and legal conflict.
Question 10: A forensic team managing a mass disaster has identified 80 out of 100 victims using primary identifiers. For the remaining 20 highly fragmented bodies, multiple body parts potentially belonging to the same individual are tagged with different numbers. Family reference DNA samples are available. Evaluate the best protocol to avoid mismatching and ensure accurate reassociation of body parts.
- A. Visually reassociate fragments based on size and anthropological features before DNA testing
- B. Combine all fragments with similar DNA profiles and release as single body
- C. Match all fragments with highest DNA match score to any family sample
- D. Use STR profiling for all fragments, create DNA profiles, perform kinship analysis with family samples, and apply statistical threshold for reassociation (Correct Answer)
Explanation: ***Use STR profiling for all fragments, create DNA profiles, perform kinship analysis with family samples, and apply statistical threshold for reassociation*** - This is the gold standard protocol in **mass disaster management** for highly fragmented remains, using **STR profiling** to produce unique genetic fingerprints for each part. - **Kinship analysis** combined with a high **Likelihood Ratio (LR)** threshold (typically >10,000) ensures statistically valid reassociation and identification, minimizing the risk of false positives. *Visually reassociate fragments based on size and anthropological features before DNA testing* - **Visual reassociation** is highly unreliable in high-energy disasters where fragmentation, **charring**, or decomposition can distort morphological features. - Relying on anthropology alone for commingled remains frequently leads to **mismatching** and creates errors that can complicate subsequent DNA analysis. *Combine all fragments with similar DNA profiles and release as single body* - While it involves DNA, simply "combining" fragments without a formal **kinship analysis** against reference samples fails to verify the actual identity. - Releasing remains based only on matching profiles among fragments (internal matching) doesn't establish the **legal identity** through family reference comparison. *Match all fragments with highest DNA match score to any family sample* - Choosing the "highest score" without applying a strict **statistical threshold** is scientifically flawed and can lead to **misidentification** due to coincidental allele sharing. - Valid identification requires a systematic comparison where each fragment's profile meets a specific, internationally accepted **posterior probability** limit.
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