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10 free EMT practice questions: Chief Complaint & Life Threats

These are real questions from the same bank the app draws from. Each one is written to the NREMT EMT content specifications and kept inside the EMT scope of practice. Pick an answer and you get the full rationale, including why the other three options are wrong.

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Question 1 of 10

The time of the call is 1120. A 68-year-old patient is sitting on the floor of a public library beside an overturned chair. Staff state the patient stood up, seemed to sag, and then went down. The patient is alert and reports that a heavy pressure in the chest started before standing up and is still there. There is a swollen, tender left wrist and a small abrasion on the forehead. The patient denies neck and back pain and moves all extremities. The skin is pale and diaphoretic. The vital signs are BP 106/72 mmHg, P 104/min, R 20/min, and SpO₂ 96% on room air. Which problem should the EMT treat as the priority?

Show the answer and rationale

Correct answer · The chest pressure that began before the fall

A call dispatched as a fall invites the crew to treat what it can see, and what it can see here is a wrist and an abrasion. The history places a heavy chest pressure before the collapse, which reframes the fall as a symptom rather than the problem. The patient did not fall and then feel unwell, the patient felt unwell and then fell. Pale, diaphoretic skin alongside ongoing chest pressure is the presentation of a possible cardiac life threat, and that outranks an isolated extremity injury and a superficial wound every time. The chief complaint the EMT works from is the problem that threatens life, and it drives oxygen if indicated, positioning, aspirin per protocol, a high transport priority, and continued reassessment.

Why the others are wrong

The swelling and tenderness of the left wrist: The swollen, tender wrist is a real injury, but it's not what's threatening this patient's life, treating it as the priority misses that the fall itself was likely caused by the chest pressure.

The abrasion on the patient's forehead: The forehead abrasion is superficial and doesn't explain the collapse, focusing on it distracts from the actual chief complaint that preceded the fall.

The possibility of a neck injury from the fall: A neck injury is a reasonable thing to rule out given the fall, but the patient denies neck and back pain and moves all extremities. The pale, diaphoretic skin with ongoing chest pressure is the finding that actually threatens this patient's life right now.

Question 2 of 10

A 78-year-old patient is found sitting on the floor at the bottom of a staircase and says, "My wrist really hurts." The right wrist is swollen and deformed. The patient is alert and reports no other pain. While the EMT is talking with the patient, the speech becomes slurred, and the left arm drifts downward when the patient is asked to hold both arms out. The vital signs are BP 168/94 mmHg, P 88/min, R 16/min, and SpO₂ 97% on room air. Which finding should most direct the EMT's assessment priorities?

Show the answer and rationale

Correct answer · Slurred speech with left arm drift

The chief complaint is the most serious thing the patient is concerned about, but what the patient states is not always what most concerns the EMT. Slurred speech together with drift of one arm are objective neurologic deficits, and in an older patient found at the bottom of a staircase they may reflect a stroke or bleeding inside the skull; either way they mark a time-critical life threat the patient cannot feel or report. The wrist injury is closed and isolated, the single elevated blood pressure reading accompanies rather than causes the emergency, and what the patient reports feeling cannot rule out a deficit the patient is unaware of. The primary assessment, not the stated complaint, is what identifies the life threat and drives the transport decision.

Why the others are wrong

Swelling and deformity of the right wrist: A student picks this because the complaint the patient states is treated as the priority. An isolated closed wrist injury in an alert patient is not a life threat and is managed after life threats are addressed.

Blood pressure of 168/94 mmHg: A student picks this because it is the most abnormal number in the vital-sign block. An elevated blood pressure by itself is not the threat here; it commonly accompanies an acute neurologic event and pain.

Report of pain at the wrist only: A student picks this because the patient's own report is treated as a complete inventory of the problem. The neurologic deficits were found on examination rather than reported, so what the patient does and does not feel cannot rule them out.

Question 3 of 10

The time of the call is 0730 on a cold morning. The EMT responds to a home for a 46-year-old patient who reports a headache, nausea, and dizziness that have worsened over two days. Two other people in the home report the same complaints and state that the furnace has been running poorly all week. The fire department has moved everyone outside. The patient is alert, and the skin is warm and dry. The vital signs are BP 138/84 mmHg, P 96/min, R 18/min, and SpO₂ 99% on room air. How should the EMT interpret the oxygen saturation reading?

Show the answer and rationale

Correct answer · The reading stays high while carbon monoxide binds hemoglobin

A pulse oximeter measures how much of the hemoglobin is saturated, and it cannot distinguish oxygen from carbon monoxide. When carbon monoxide displaces oxygen from hemoglobin, the saturation can read high while the patient is hypoxic. Three people in one home with headache, nausea, and dizziness and a furnace running poorly is the classic pattern of a carbon monoxide exposure, and in a suspected inhalation exposure high-concentration oxygen is given regardless of the pulse oximetry value. The number is an adjunct, not a substitute for the assessment and the scene findings.

Why the others are wrong

The reading is falsely raised by the cold outdoor air: A student picks this because cold is known to affect the device. Vasoconstriction from cold results in inaccurate or misleading values rather than raising the number, and the question states the skin is warm and dry.

The reading shows the tissues are receiving enough oxygen: A student picks this because the number is treated as a measure of tissue oxygenation. The device reports the percentage of hemoglobin that is saturated and cannot tell which gas is bound, so a high number does not establish that oxygen reached the tissues.

The reading rules out carbon monoxide as a cause here: A student picks this because a high number is treated as evidence against the exposure. Saturation can read normal in carbon monoxide poisoning while the patient is hypoxic, so the reading cannot exclude the furnace as the source of three people's symptoms.

Question 4 of 10

A 44-year-old patient was carried out of a closed bedroom during a house fire and is now in the ambulance. There are partial-thickness burns across the chest and both arms, and the patient reports severe pain from the burned areas. Soot is present around the nose and mouth, the hair inside the nostrils is singed, and the voice is hoarse. The airway is open, the breathing is unlabored, and the breath sounds are clear. The vital signs are BP 142/88 mmHg, P 108/min, R 18/min, and SpO₂ 97% on high-concentration oxygen. Which finding identifies this patient's most immediate life threat?

Show the answer and rationale

Correct answer · Soot at the nose and mouth with a hoarse voice

Burns to the airway matter out of proportion to their appearance because the loose mucosa in the hypopharynx swells and can produce complete obstruction. Soot around the nose and mouth, singed nasal hair, a hoarse voice, and rescue from an enclosed space are the findings that identify that injury, and they are present here even though the airway is still open and the breath sounds are still clear. Airway control becomes progressively harder once swelling begins, so this patient is a rapid-transport patient to a facility capable of advanced airway management. The burns on the chest and arms and the pain they cause are real problems, but neither will kill in the next several minutes.

Why the others are wrong

Severe pain reported from the burned areas: A student picks this because pain is the loudest part of the presentation. Pain is a symptom that guides comfort care and transport, not a condition that closes an airway, and the question supplies airway findings that will.

Partial-thickness burns of the chest and both arms: A student picks this because burn size is treated as burn severity. Extent and depth determine the receiving facility and later fluid needs, while the question states the burns are partial-thickness on the chest and arms and the airway findings are already present.

Pulse of 108/min with unlabored breathing: A student picks this because it is the only abnormal number in the vital-sign block. A pulse of 108/min is expected with pain and stress after a fire, and the question states the breathing is unlabored, so this finding is not the threat.

Question 5 of 10

The EMT responds to a home for a 3-year-old patient who was found about 20 minutes ago sitting on the bathroom floor beside an open bottle of a caregiver's blood pressure medication. The caregiver states that many tablets are missing and that the bottle was full yesterday. The patient is alert, is playing with a toy, and speaks in full sentences. The skin is warm and dry, and the breath sounds are clear. The vital signs are BP 96/60 mmHg, P 110/min, R 24/min, and SpO₂ 99% on room air. What should the EMT do next?

Show the answer and rationale

Correct answer · Begin transport and bring the medication bottle along

With poisonings, an alert, oriented patient in no distress is not the same as a patient in stable condition, because a harmful or even lethal amount of the substance may be in the body without having had time to produce systemic effects. What defines the urgency here is the substance, the amount, and how long ago it was taken, not how the patient looks 20 minutes in. The drug container is the single most useful piece of information the EMT can carry, since the label names the drug, its concentration, and the number of tablets originally in the bottle, which lets the receiving facility work out how much was ingested. Prompt transport with the bottle is what moves this patient toward definitive care.

Why the others are wrong

Wait on scene until symptoms begin to appear: A student picks this because a child who is alert and playing looks well enough to watch. The ingestion was 20 minutes ago and many tablets are missing, so the drug is still being absorbed and the current findings say nothing about what the dose will do.

Give water to dilute the tablets in the stomach: A student picks this because diluting a poison sounds protective. The interventions the EMT has for an ingested poison are activated charcoal where local protocol allows it and prompt transport; water does not remove tablets that have already been swallowed, and stopping to give it delays departure.

Perform a head-to-toe examination before moving: A student picks this because a full examination feels thorough before moving a patient. The primary assessment has found nothing to manage on scene, and a head-to-toe examination spends minutes that matter for a time-critical exposure.

Question 6 of 10

A 54-year-old patient with a history of migraine headaches reports a headache that began about 30 minutes ago while sitting at a desk and reached full intensity within seconds. The patient states that this headache is far worse than any previous migraine and does not feel the same. There has been no head injury. The patient is alert but repeatedly asks, "What happened?" and moving the chin toward the chest causes pain in the neck. There is no fever and no sensitivity to light. The vital signs are BP 186/104 mmHg, P 58/min, R 16/min, SpO₂ 98% on room air, and T 98.4°F. What should the EMT most strongly suspect as the cause of this emergency?

Show the answer and rationale

Correct answer · Hemorrhagic stroke

A headache becomes a life threat when it carries red flags: sudden onset, pain the patient calls the worst ever experienced, explosive or thunderclap quality, altered mental status, age over 50, neurologic deficits, or neck stiffness and pain. This presentation carries several at once. A hemorrhagic stroke often presents as a headache that reaches maximum intensity almost immediately, and blood irritating the brain tissue raises intracranial pressure, which produces headache, vomiting, altered mental status, and seizures along with a rising blood pressure and a slowing pulse. The known migraine history is the trap: it is exactly the anchor that makes a new and different headache easy to dismiss, and the patient's own statement that it does not feel the same is the finding that breaks it.

Why the others are wrong

Tension headache: A student picks this because a headache that starts at a desk suggests stress. A tension headache is described as squeezing, dull, or aching and carries no associated findings, while this patient has neck pain, repeated questioning, and marked hypertension.

Bacterial meningitis: A student picks this because neck pain points to meningeal irritation. Bacterial meningitis presents with fever and sensitivity to light and develops over hours, and the question states there is no fever, no sensitivity to light, and a temperature of 98.4°F.

Migraine headache: A student picks this because the patient has a known migraine history and the diagnosis is already on the chart. A migraine builds over time and is usually described as similar to past episodes, while this one peaked within seconds and the patient states it does not feel the same.

Question 7 of 10

A 55-year-old patient is found after a fall. During the primary assessment the patient responds only to painful stimuli, and the EMT hears gurgling sounds with each breath. The EMT also notes a small forearm laceration whose minor bleeding has already stopped, and the patient has no deformity to the extremities. Which finding is the immediate life threat that requires intervention before the EMT moves on?

Show the answer and rationale

Correct answer · The gurgling sounds with each breath, indicating the airway needs immediate suctioning

Gurgling indicates fluid in the airway; in a patient with a decreased level of consciousness this is an immediate airway life threat corrected by suctioning during the primary assessment. The stopped minor laceration, the negative extremity finding, and a decreased LOC by itself (which does not mandate BVM ventilation) are not the immediate, actionable life threat. Only one option identifies the airway threat, keeping the item cut-and-dry.

Why the others are wrong

The forearm laceration, because every wound must be fully bandaged before transport: The bleeding is minor and has already stopped, so it is not an immediate life threat; wound care is a secondary-assessment task, not a primary-assessment priority.

The decreased level of consciousness alone, which by itself requires ventilation: A decreased level of consciousness drives airway management (positioning, suction, adjunct), but altered mental status alone is not the trigger for BVM ventilation; the actionable immediate life threat here is the airway.

The absence of any deformity to the extremities: The absence of deformity is a normal (negative) finding and is not a life threat of any kind.

Question 8 of 10

A patient develops hives, facial swelling, and wheezing within minutes of a bee sting. Which of the following best explains why this presentation is recognized as anaphylaxis rather than a localized allergic reaction?

Show the answer and rationale

Correct answer · More than one body system (skin and respiratory) is involved after exposure

Anaphylaxis is recognized by involvement of two or more body systems after exposure to a trigger, or by airway/circulatory compromise alone; here, skin (hives) and respiratory (wheezing) are both involved after the bee sting, meeting that threshold.

Why the others are wrong

Any swelling after an insect sting is by definition anaphylaxis: Isolated localized swelling at the sting site alone, without involvement of another body system, is a local allergic reaction, not anaphylaxis by definition; not all post-sting swelling qualifies.

Wheezing alone is sufficient regardless of any other findings: Wheezing alone, without another involved system or airway/circulatory compromise, does not by itself meet the anaphylaxis criteria.

Anaphylaxis requires the patient to already have a known bee allergy: Anaphylaxis can occur on a person's first-ever exposure to a trigger; a previously known bee allergy diagnosis is not a requirement for recognizing anaphylaxis.

Question 9 of 10

A trauma patient has progressive difficulty breathing, absent breath sounds on the left side, blood pressure of 82/54 mmHg, and jugular venous distension. Which life threat is most consistent with this presentation?

Show the answer and rationale

Correct answer · Tension pneumothorax

Progressive difficulty breathing with absent breath sounds on one side, hypotension, and jugular venous distension (with late tracheal deviation) is the classic tension pneumothorax picture, caused by trapped air building pressure in the chest and compressing the heart and great vessels: a rapidly fatal life threat requiring high-flow oxygen, ventilatory support, and rapid transport.

Why the others are wrong

Simple pneumothorax: A simple pneumothorax causes absent or decreased breath sounds on the affected side from a collapsed lung, but without ongoing pressure buildup it does not produce progressive worsening, hypotension, or JVD.

Pulmonary contusion: causes hypoxia and crackles or diminished sounds from bruised lung tissue, not the one-sided absent breath sounds with JVD seen when trapped air shifts the mediastinum.

Flail chest: identified by paradoxical chest wall movement from multiple adjacent rib fractures, not by absent breath sounds and JVD, and does not itself explain the progressive hypotensive picture described.

Question 10 of 10

A patient shows sudden facial droop, arm drift, and slurred speech. Which finding would most strongly support that this presentation is a large-vessel occlusion stroke rather than a smaller stroke?

Show the answer and rationale

Correct answer · The patient also has no grip strength on the affected side

The Los Angeles Motor Scale (LAMS), used to predict large-vessel occlusion, scores facial droop, arm drift, and grip strength, not speech. A "no grip" finding (the most severe grip-strength score) combined with facial droop and arm drift produces a high LAMS score, which is strongly associated with LVO.

Why the others are wrong

Only facial droop is present, with normal arm strength and speech: A single positive finding, such as facial droop alone with normal arm strength and speech, is still concerning for stroke but does not reflect a high LAMS score associated with LVO.

The patient has a normal blood glucose level: A normal blood glucose only helps rule out hypoglycemia as a stroke mimic; it says nothing about LVO likelihood.

The patient's symptoms began more than 24 hours ago: Symptom duration does not indicate the size of the occluded vessel; this option addresses treatment window, not LVO likelihood.

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