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Mixed Deck — All EMD Topics Flashcards

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  1. An EMD receives a call about a child who ingested a household chemical. The appropriate protocol is:

    Answer: Overdose/Poisoning

    Ingestion of any toxic substance, including household chemicals, is managed under the Overdose/Poisoning protocol.

  2. What is the primary advantage of MPDS over purely ad hoc, experience-based emergency dispatching?

    Answer: Consistency, error reduction, and enhanced medico-legal protection for dispatchers and agencies

    Standardized protocols ensure every caller receives consistent, evidence-based assistance and provide dispatchers with a documented, defensible decision framework.

  3. A mother calls and reports that her 2 year old daughter accidentally ingested a small amount of bleach and is conscious and breathing, choose the most correct chief complaint.

    Answer: 23 Overdose/Poisoning

    The most correct chief complaint in this situation would be "23 Overdose/Poisoning" because the child accidentally ingested bleach, which is a toxic substance. Although the child is conscious and breathing, ingesting bleach can still be considered an overdose or poisoning and requires immediate medical attention.

  4. Which of the following MPDS response levels is designated for the most critical, time-sensitive incidents like an unconscious patient who is not breathing, often allowing for the dispatch of the absolute closest unit, even if it's a non-standard resource?

    Answer: ECHO

    ECHO-level calls represent the most severe medical emergencies, such as a confirmed cardiac arrest, where immediate intervention is paramount. The system is designed to allow for the fastest possible response, which may include dispatching the absolute closest unit of any kind (e.g., a police officer with an AED) simultaneously with traditional EMS resources. DELTA calls are also life-threatening but do not have the same level of extreme time-criticality as ECHO calls.

  5. What is the primary function of Post-Dispatch Instructions (PDIs) within the Medical Priority Dispatch System?

    Answer: To provide instructions for the caller to prepare for the arrival of responders.

    Post-Dispatch Instructions (PDIs) are given to the caller after the initial dispatch has been made. Their main purpose is to guide the caller in preparing for the arrival of help, which can include actions like unlocking the door, securing pets, and turning on lights to make the location easier to find.

  6. When a dispatcher assigns a response of 'Code 2' (no lights or siren), which determinant level most likely applies?

    Answer: Alpha

    Alpha-level determinants typically correspond to non-urgent or low-acuity calls where a routine, non-emergency response is appropriate.

  7. An EMD is providing CPR instructions to a caller for an adult patient in cardiac arrest. The caller is untrained and hesitant to perform mouth-to-mouth ventilations. What is the EMD's best course of action based on current DLS standards?

    Answer: Instruct the caller to perform chest compressions only.

    Current international consensus guidelines and recommendations support providing chest-compressions-only CPR instructions (CCOIs) when a bystander is untrained, unwilling, or unable to perform mouth-to-mouth ventilations. This approach simplifies instructions and encourages immediate intervention, which is critical for survival.

  8. When interrogating a third-party caller who is not at the scene, what is the dispatcher's most critical challenge?

    Answer: Verifying the accuracy of information they cannot directly observe

    Third-party callers relay secondhand information, meaning details about breathing, consciousness, and injury severity may be inaccurate or incomplete.

  9. The purpose of the 'chief complaint entry point' in an EMD protocol system is to:

    Answer: Route the call to the correct protocol for structured questioning

    The chief complaint entry point ensures the EMD uses the correct protocol pathway to gather relevant information systematically.

  10. The group whose mission is to support citizens and first responders to ensure that as a nation, we work together to build, sustain and improve our capability to prepare for, protect against, respond to, recover from, and mitigate hazards is known as:

    Answer: FEMA

    FEMA, the Federal Emergency Management Agency, is the primary U.S. government agency responsible for coordinating the nation's response to disasters and emergencies. Its comprehensive mission encompasses all phases of emergency management: preparedness, protection, response, recovery, and mitigation, aligning perfectly with the broad support described for citizens and first responders.

  11. During an obstetric call, the caller reports the umbilical cord is visible before the baby emerges. What is this condition?

    Answer: Umbilical cord prolapse

    Umbilical cord prolapse occurs when the cord precedes the baby and is a life-threatening emergency requiring immediate EMD action.

  12. In the MPDS cardiac arrest protocol, after positioning the patient, what compression rate should the EMD instruct the bystander to perform?

    Answer: 100–120 compressions per minute

    Current AHA guidelines and EMD protocols specify 100–120 compressions per minute for optimal perfusion during CPR.

  13. An EMD overhears a coworker giving dangerous incorrect CPR instructions. The EMD's professional and legal responsibility is to:

    Answer: Immediately correct the colleague and notify a supervisor

    Patient safety and professional duty require immediate intervention when life-threatening incorrect information is being given, followed by supervisor notification.

  14. What is the correct technique for delivering rescue breaths to an infant during CPR?

    Answer: Cover both the infant's mouth and nose with your mouth

    Due to an infant's small facial size, rescuers cover both the mouth and nose with their mouth to deliver effective rescue breaths.

  15. A caller describes a male patient who was assaulted and has a deformed jaw and missing teeth. He is drooling blood. What is the MOST critical airway concern?

    Answer: Risk of aspiration of blood and teeth fragments

    Blood, bone fragments, and dislodged teeth can be aspirated, causing airway obstruction in a facial trauma patient.

  16. A caller reports a patient was struck by lightning and is now unresponsive. What is the correct EMD response regarding scene safety?

    Answer: The scene may still be dangerous; advise caller to move to shelter before approaching

    Lightning poses an ongoing scene hazard; callers should seek shelter while remaining on the line, and responders should approach only when safe.

  17. A caller is hysterical and screaming. What is the recommended EMD technique to regain control of the interrogation?

    Answer: Say the caller's name firmly and give a short, direct instruction

    Using the caller's name and issuing a calm, firm directive refocuses their attention and helps de-escalate emotional responses so interrogation can resume.

  18. An EMD is handling a call for a patient with a suspected cardiac arrest. The caller is highly distressed. Which of the following actions is the MOST critical and primary responsibility of the EMD in this situation?

    Answer: Providing Pre-Arrival Instructions for CPR while simultaneously dispatching appropriate resources.

    The primary roles of an EMD are to rapidly and accurately categorize the call, dispatch the appropriate resources, and provide life-saving Pre-Arrival Instructions (PAI). In a cardiac arrest scenario, initiating bystander CPR through clear instructions is a critical link in the chain of survival and takes precedence over gathering a detailed history or providing comfort alone.

  19. Which of the following actions by an EMD would be a clear violation of patient confidentiality principles, potentially including regulations like HIPAA?

    Answer: Confirming the patient's name and specific medical condition to a news reporter who calls the dispatch center.

    Sharing Protected Health Information (PHI) with entities not directly involved in the patient's treatment or public safety response, such as the media, is a violation of patient confidentiality. Communications with other responders and healthcare facilities for the purpose of patient care are permissible.

  20. A dispatcher who repeatedly relives traumatic calls, has nightmares, and avoids certain call types may be exhibiting symptoms of:

    Answer: Post-Traumatic Stress Disorder (PTSD)

    Recurring intrusive memories, nightmares, and avoidance behaviors are hallmark PTSD symptoms that dispatchers can develop from repeated exposure to traumatic calls.

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Sources & references

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  1. emergencydispatch.org — Test delivery, retake policy, eligibility, fees, exam format, passing score, retake fee, score validity · verified Oct 2026