NCOEMS Practice Exam 1 – North Carolina EMS Certification
Study Guide, Practice Questions & Exam Review
This document is a comprehensive study resource for candidates preparing for the North
Carolina Office of Emergency Medical Services (NCOEMS) Certification Exam. It covers
essential EMS topics commonly tested on state credentialing examinations, including EMS
operations, patient assessment, airway management, respiration and ventilation, cardiovascular
emergencies, medical emergencies, traumatic injuries, and special patient populations. The guide
includes practice questions, answer explanations, clinical scenarios, and exam-focused review
material designed to strengthen critical-thinking skills and improve readiness for EMT, AEMT,
and Paramedic credentialing examinations. NCOEMS exams are developed from a job task
analysis and assess real-world EMS knowledge and decision-making across multiple domains.
Question 1
You are dispatched to a residential home for an unknown medical emergency. As you
approach the front door, you hear a loud hissing noise and notice a strong smell of
natural gas. Which action should you take first?
A) Enter the house quickly to pull the patient outside to safety.
B) Insert a nasopharyngeal airway and immediately check a pulse.
C) Retreat to a safe distance upwind and notify the gas company and fire department.
D) Put on your high-visibility vest and open the nearest window.
Answer: C) Retreat to a safe distance upwind and notify the gas company and fire
department.
Rationale: Scene safety is the absolute first priority on every EMS call. Entering a
structure with an active natural gas leak poses a severe risk of explosion and toxic
inhalation. You must never become a casualty yourself; instead, stay upwind, isolate the
area, and wait for specialized rescue personnel.
Question 2
What is the very first step in the physical assessment of an unresponsive medical
patient?
A) Obtain a full set of baseline vital signs.
B) Perform a rapid primary assessment (ABC focus).
C) Position the patient on their side to protect the airway.
D) Gather a SAMPLE history from a family member on scene.
Answer: B) Perform a rapid primary assessment (ABC focus).
,Rationale: For an unresponsive medical patient, you must immediately perform a
primary assessment to identify and manage life-threatening conditions involving the
Airway, Breathing, and Circulation (ABCs). Secondary steps like vital signs and history
gathering happen only after life threats are stabilized.
Question 3
A conscious 67-year-old male presents with severe difficulty breathing. He is sitting up
in a "tripod" position, using accessory muscles, and can only speak in two to three-word
sentences. His respiratory rate is 24 breaths per minute with adequate chest rise. What
is the most appropriate initial oxygen therapy?
A) Supplemental oxygen at 2 to 4 L/min via a nasal cannula.
B) Positive pressure ventilations at 10 to 12 breaths/min via a Bag-Valve Mask (BVM).
C) High-flow oxygen at 12 to 15 L/min via a non-rebreather mask.
D) Continuous Positive Airway Pressure (CPAP) at 20 cm H2O.
Answer: C) High-flow oxygen at 12 to 15 L/min via a non-rebreather mask.
Rationale: The patient is in significant respiratory distress but still has adequate tidal
volume (indicated by proper chest rise) and an acceptable rate. High-flow oxygen via a
non-rebreather mask is the quickest way to deliver the highest concentration of oxygen
to a conscious, distressed patient. BVM ventilation is reserved for respiratory failure or
inadequate rate/volume.
Question 4
When performing artificial ventilation using a Bag-Valve Mask (BVM) unit on an adult
patient with no suspected spinal trauma, what is the correct initial step?
A) Squeeze the bag forcefully until the chest rises dramatically.
B) Place the patient's head in a hyperextended, "sniffing" position.
C) Insert a soft-tip suction catheter deep past the vocal cords.
D) Fasten the mask straps tightly to the face using a single hand.
Answer: B) Place the patient's head in a hyperextended, "sniffing" position.
Rationale: Opening the airway is essential before attempting ventilations. For a patient
without suspected trauma, the head-tilt chin-lift or hyperextended sniffing position aligns
the airway structures to allow maximum air passage. Inserting catheters blindly or
squeezing the bag too forcefully can cause airway trauma or gastric inflation.
,Question 5
You receive a hand-off report from an on-scene first responder who describes a patient
as being "postictal." Based on this clinical term, what mental state do you expect to find
the patient in?
A) Alert, completely oriented, and hyperactive.
B) Confused, lethargic, or deeply somnolent.
C) Unresponsive with rigid, continuous muscle spasms.
D) Fully cooperative but experiencing vivid auditory hallucinations.
Answer: B) Confused, lethargic, or deeply somnolent.
Rationale: The postictal phase is the recovery period that occurs immediately after a
grand mal (generalized tonic-clonic) seizure. During this phase, the brain is recovering
from massive electrical discharges, leaving the patient typically drowsy, confused, and
slow to respond.
Question 6
When clear secretions, blood, or emesis are present in the airway of an adult patient,
how long is the maximum continuous duration you should apply suction?
A) 5 seconds
B) 15 seconds
C) 30 seconds
D) Until the airway is completely dry, regardless of time
Answer: B) 15 seconds
Rationale: Suctioning removes vital oxygen from the patient's airway alongside
secretions. To prevent severe hypoxia, continuous suctioning must be limited to a
maximum of 15 seconds in adults, followed immediately by pre-oxygenation or
ventilation.
Question 7
While managing an unconscious patient's airway, you decide to use a soft (French)
suction catheter to clear fluid from the back of the throat. How far should you insert this
catheter?
, A) As far down into the esophagus as physically possible.
B) Only as far as the base of the tongue or the distance measured from the corner of
the mouth to the earlobe.
C) Until firm physical resistance is encountered deep in the trachea.
D) Past the vocal cords into the mainstem bronchi.
Answer: B) Only as far as the base of the tongue or the distance measured from
the corner of the mouth to the earlobe.
Rationale: Flexible or soft suction catheters should only be inserted as far as you can
visually see, or measured from the corner of the mouth to the earlobe (reaching the
base of the tongue). Inserting catheters deeper without direct visualization can cause
vagal nerve stimulation, bradycardia, or soft tissue damage.
Question 8
Which of the following patients is a detailed physical examination most appropriate for
during the transport phase of a call?
A) A 48-year-old male with known coronary artery disease complaining of typical chest
pain.
B) A 35-year-old female who was in a single-vehicle collision and briefly lost
consciousness.
C) A 28-year-old full-term pregnant female experiencing regular uterine contractions.
D) A 53-year-old female with an extensive smoking history presenting with mild
shortness of breath.
Answer: B) A 35-year-old female who was in a single-vehicle collision and briefly
lost consciousness.
Rationale: A detailed secondary physical exam is a comprehensive, head-to-toe
evaluation typically performed on a trauma patient with a significant mechanism of injury
(like a motor vehicle collision with altered mental status) to find hidden injuries. Focused
exams are more appropriate for stable, isolated medical emergencies.
Question 9
Where is a detailed, comprehensive head-to-toe secondary physical examination
typically performed during an emergency call?
A) Directly on the ground at the scene of the accident.
B) In the hospital emergency department by the triage nurse.
Study Guide, Practice Questions & Exam Review
This document is a comprehensive study resource for candidates preparing for the North
Carolina Office of Emergency Medical Services (NCOEMS) Certification Exam. It covers
essential EMS topics commonly tested on state credentialing examinations, including EMS
operations, patient assessment, airway management, respiration and ventilation, cardiovascular
emergencies, medical emergencies, traumatic injuries, and special patient populations. The guide
includes practice questions, answer explanations, clinical scenarios, and exam-focused review
material designed to strengthen critical-thinking skills and improve readiness for EMT, AEMT,
and Paramedic credentialing examinations. NCOEMS exams are developed from a job task
analysis and assess real-world EMS knowledge and decision-making across multiple domains.
Question 1
You are dispatched to a residential home for an unknown medical emergency. As you
approach the front door, you hear a loud hissing noise and notice a strong smell of
natural gas. Which action should you take first?
A) Enter the house quickly to pull the patient outside to safety.
B) Insert a nasopharyngeal airway and immediately check a pulse.
C) Retreat to a safe distance upwind and notify the gas company and fire department.
D) Put on your high-visibility vest and open the nearest window.
Answer: C) Retreat to a safe distance upwind and notify the gas company and fire
department.
Rationale: Scene safety is the absolute first priority on every EMS call. Entering a
structure with an active natural gas leak poses a severe risk of explosion and toxic
inhalation. You must never become a casualty yourself; instead, stay upwind, isolate the
area, and wait for specialized rescue personnel.
Question 2
What is the very first step in the physical assessment of an unresponsive medical
patient?
A) Obtain a full set of baseline vital signs.
B) Perform a rapid primary assessment (ABC focus).
C) Position the patient on their side to protect the airway.
D) Gather a SAMPLE history from a family member on scene.
Answer: B) Perform a rapid primary assessment (ABC focus).
,Rationale: For an unresponsive medical patient, you must immediately perform a
primary assessment to identify and manage life-threatening conditions involving the
Airway, Breathing, and Circulation (ABCs). Secondary steps like vital signs and history
gathering happen only after life threats are stabilized.
Question 3
A conscious 67-year-old male presents with severe difficulty breathing. He is sitting up
in a "tripod" position, using accessory muscles, and can only speak in two to three-word
sentences. His respiratory rate is 24 breaths per minute with adequate chest rise. What
is the most appropriate initial oxygen therapy?
A) Supplemental oxygen at 2 to 4 L/min via a nasal cannula.
B) Positive pressure ventilations at 10 to 12 breaths/min via a Bag-Valve Mask (BVM).
C) High-flow oxygen at 12 to 15 L/min via a non-rebreather mask.
D) Continuous Positive Airway Pressure (CPAP) at 20 cm H2O.
Answer: C) High-flow oxygen at 12 to 15 L/min via a non-rebreather mask.
Rationale: The patient is in significant respiratory distress but still has adequate tidal
volume (indicated by proper chest rise) and an acceptable rate. High-flow oxygen via a
non-rebreather mask is the quickest way to deliver the highest concentration of oxygen
to a conscious, distressed patient. BVM ventilation is reserved for respiratory failure or
inadequate rate/volume.
Question 4
When performing artificial ventilation using a Bag-Valve Mask (BVM) unit on an adult
patient with no suspected spinal trauma, what is the correct initial step?
A) Squeeze the bag forcefully until the chest rises dramatically.
B) Place the patient's head in a hyperextended, "sniffing" position.
C) Insert a soft-tip suction catheter deep past the vocal cords.
D) Fasten the mask straps tightly to the face using a single hand.
Answer: B) Place the patient's head in a hyperextended, "sniffing" position.
Rationale: Opening the airway is essential before attempting ventilations. For a patient
without suspected trauma, the head-tilt chin-lift or hyperextended sniffing position aligns
the airway structures to allow maximum air passage. Inserting catheters blindly or
squeezing the bag too forcefully can cause airway trauma or gastric inflation.
,Question 5
You receive a hand-off report from an on-scene first responder who describes a patient
as being "postictal." Based on this clinical term, what mental state do you expect to find
the patient in?
A) Alert, completely oriented, and hyperactive.
B) Confused, lethargic, or deeply somnolent.
C) Unresponsive with rigid, continuous muscle spasms.
D) Fully cooperative but experiencing vivid auditory hallucinations.
Answer: B) Confused, lethargic, or deeply somnolent.
Rationale: The postictal phase is the recovery period that occurs immediately after a
grand mal (generalized tonic-clonic) seizure. During this phase, the brain is recovering
from massive electrical discharges, leaving the patient typically drowsy, confused, and
slow to respond.
Question 6
When clear secretions, blood, or emesis are present in the airway of an adult patient,
how long is the maximum continuous duration you should apply suction?
A) 5 seconds
B) 15 seconds
C) 30 seconds
D) Until the airway is completely dry, regardless of time
Answer: B) 15 seconds
Rationale: Suctioning removes vital oxygen from the patient's airway alongside
secretions. To prevent severe hypoxia, continuous suctioning must be limited to a
maximum of 15 seconds in adults, followed immediately by pre-oxygenation or
ventilation.
Question 7
While managing an unconscious patient's airway, you decide to use a soft (French)
suction catheter to clear fluid from the back of the throat. How far should you insert this
catheter?
, A) As far down into the esophagus as physically possible.
B) Only as far as the base of the tongue or the distance measured from the corner of
the mouth to the earlobe.
C) Until firm physical resistance is encountered deep in the trachea.
D) Past the vocal cords into the mainstem bronchi.
Answer: B) Only as far as the base of the tongue or the distance measured from
the corner of the mouth to the earlobe.
Rationale: Flexible or soft suction catheters should only be inserted as far as you can
visually see, or measured from the corner of the mouth to the earlobe (reaching the
base of the tongue). Inserting catheters deeper without direct visualization can cause
vagal nerve stimulation, bradycardia, or soft tissue damage.
Question 8
Which of the following patients is a detailed physical examination most appropriate for
during the transport phase of a call?
A) A 48-year-old male with known coronary artery disease complaining of typical chest
pain.
B) A 35-year-old female who was in a single-vehicle collision and briefly lost
consciousness.
C) A 28-year-old full-term pregnant female experiencing regular uterine contractions.
D) A 53-year-old female with an extensive smoking history presenting with mild
shortness of breath.
Answer: B) A 35-year-old female who was in a single-vehicle collision and briefly
lost consciousness.
Rationale: A detailed secondary physical exam is a comprehensive, head-to-toe
evaluation typically performed on a trauma patient with a significant mechanism of injury
(like a motor vehicle collision with altered mental status) to find hidden injuries. Focused
exams are more appropriate for stable, isolated medical emergencies.
Question 9
Where is a detailed, comprehensive head-to-toe secondary physical examination
typically performed during an emergency call?
A) Directly on the ground at the scene of the accident.
B) In the hospital emergency department by the triage nurse.
