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
The chest pressure that began before standing up decides this call: the patient collapsed because of it, not the other way around. Cardiac tissue starved of oxygen triggers reflex sympathetic discharge, producing the pale, diaphoretic skin and the resting tachycardia of 104 beats per minute you see here, and it can progress to a lethal dysrhythmia at any moment. That mechanism, syncope caused by cardiac chest pressure, is the one finding on this call that only this answer explains. It sets the priority: oxygen if indicated, aspirin per protocol, position of comfort, and a high-priority transport with continuous reassessment, ahead of the wrist, the abrasion, or spinal precautions.
Why the others are wrong
The swelling and tenderness of the left wrist: A swollen, tender wrist is a genuine injury that begs to be splinted right away because it's visible and painful. It came from the fall, and the fall came from the chest pressure that started before the patient ever stood up. Splinting the wrist treats a downstream injury while the cardiac cause that produced it goes unaddressed.
The abrasion on the patient's forehead: The forehead abrasion is the kind of visible wound a new EMT wants to dress first. It's superficial and does not explain why this patient sagged and collapsed. Treating it addresses a scratch while the chest pressure that caused the collapse continues untreated.
The possibility of a neck injury from the fall: A fall with a brief collapse fits the mechanism for a neck injury, and spinal precautions belong in the workup. The patient is alert, denies neck and back pain, and moves all four extremities, findings against significant spinal injury. Even with precautions, it doesn't address the chest pressure that preceded the fall, the cardiac cause threatening this patient's life.
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: 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: 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: 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: 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: 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 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: 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: 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: 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 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: 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 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 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: 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: 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
The gurgling sound with each breath is the finding that decides this: it means liquid, secretions, or blood is pooling in the upper airway, and this patient, who responds only to painful stimuli, no longer has an intact gag or cough reflex to clear it. Physiologically, that fluid sits in the airway and threatens both obstruction and direct aspiration into the lungs. That creates an immediate priority: suction the airway before you move any further in the primary assessment, because breathing and circulation findings mean nothing if the airway stays wet.
Why the others are wrong
The forearm laceration, because every wound must be fully bandaged before transport: A forearm laceration is exactly the kind of wound you're trained to fully bandage before transport, but this one has already stopped bleeding on its own and is described as minor. With no active blood loss, it belongs to the secondary assessment, not the threat you stop for during the primary assessment.
The decreased level of consciousness alone, which by itself requires ventilation: Responding only to painful stimuli is a real drop in consciousness, the P on the AVPU scale of Alert, Verbal, Pain, Unresponsive, and it explains why this patient can't protect the airway, but altered mental status alone doesn't call for bag-valve-mask ventilation; the gurgling is the airway problem that the LOC change caused, and you treat that effect first.
The absence of any deformity to the extremities: No deformity to the extremities is a normal, negative finding you'd note and move past in a full assessment. It never represents a threat to airway, breathing, or circulation, so it can't be the finding that stops you during the primary assessment.
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 defined as a systemic allergic reaction involving two or more body systems after exposure to a trigger, or airway, breathing, or circulatory compromise on its own. Physiologically, mast cell degranulation releases histamine and other mediators into the bloodstream rather than staying confined to the sting site, so effects show up in skin (hives, facial swelling) and in the respiratory tract (bronchoconstriction causing wheezing) at the same time. Recognizing this multi-system pattern is what tells you to give epinephrine immediately and prepare for airway compromise, rather than treating this as a local reaction that only needs monitoring and antihistamines.
Why the others are wrong
Any swelling after an insect sting is by definition anaphylaxis: A local allergic reaction produces redness, swelling, and itching confined to the sting site, with no findings anywhere else on the body. This question gives you facial swelling plus wheezing, findings outside the sting site, so a blanket rule that any swelling equals anaphylaxis is not the actual test being applied here.
Wheezing alone is sufficient regardless of any other findings: Isolated wheezing with no other system involved can come from asthma or another respiratory cause and would not by itself meet the anaphylaxis definition. This patient also has hives and facial swelling, so the wheezing is one piece of a multi-system reaction, not a standalone finding carrying the diagnosis.
Anaphylaxis requires the patient to already have a known bee allergy: A known bee allergy raises suspicion but anaphylaxis can occur on a first-ever sting with no prior diagnosed allergy. The question never states this patient has a known allergy, and the diagnosis rests on the hives and wheezing occurring together, not on allergy history.
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 finding is complete loss of grip strength on the affected side. The Los Angeles Motor Scale scores facial droop, arm drift, and grip strength, and a total loss of grip strength combined with facial droop and arm drift produces a maximum score, which correlates with occlusion of a large vessel supplying a wide swath of cortex rather than a small perforating artery. This changes your transport decision: a high LAMS score pushes you to bypass a nearer hospital for a comprehensive stroke center capable of mechanical thrombectomy.
Why the others are wrong
Only facial droop is present, with normal arm strength and speech: Isolated facial droop with normal arm strength and speech is the classic single-finding minor stroke, the kind that scores low on the Los Angeles Motor Scale. This patient already has arm drift and slurred speech in addition to the droop, so this finding doesn't match what's given. A low score points toward a smaller vessel stroke, the opposite of what the question asks about.
The patient has a normal blood glucose level: A normal blood glucose only tells you the presentation isn't hypoglycemia mimicking a stroke. It says nothing about how much brain tissue the occlusion affects, so it can't distinguish a large-vessel occlusion from a smaller one. This finding answers the mimic question, not the vessel-size question.
The patient's symptoms began more than 24 hours ago: Symptoms starting more than 24 hours ago matters for treatment eligibility, like the window for fibrinolytics, not for vessel size. This patient's deficits are described as sudden, and duration alone can't tell you whether a large or small vessel is occluded. This confuses the treatment-window decision with the severity finding the question is asking about.
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