EMS 121 Exam 2 2025 Questions and
Answers 100% Pass
Ventilation - ANSWER-Breathing in and out (inhalation and exhalation)
Alveolar Ventilation - ANSWER-The amount of air that reaches the alveoli during
inhalation
Respiratory arrest - ANSWER-When breathing completely stops
Positive Pressure Ventilation - ANSWER-The process of forcing air and or oxygen
into the lungs when breathing has stopped
Respiratory Failure - ANSWER-The reduction of breathing to the point at which
oxygen intake is not sufficient to support life
Respiration - ANSWER-The diffusion of oxygen and carbon dioxide between the
alveoli and the blood and between the blood and the cells
Pulmonary Respiration - ANSWER-The exchange of oxygen and carbon dioxide
between the alveoli and circulating blood in the pulmonary capillaries
Bag-valve mask (BVM) - ANSWER-A handheld device with a face mask and self-
refilling bag that can be squeezed to provide artificial ventilation's to a patient
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,Ventuir Mask - ANSWER-A face mask that delivers very specific concentrations
of oxygen by mixing oxygen with inhaled air
Tracheostomy mask - ANSWER-A device designed to be placed over a stoma or
tracheostomy tube to provide supplemental oxygen
Automatic transport ventilator (ATV) - ANSWER-A device that provides positive
pressure ventilation's. It includes settings designed to adjust ventilation rate and
volume, is portable, and is easily carried on an ambulance
Oxygen Cylinder - ANSWER-A cylinder filled with oxygen under pressure
Pressure regulator - ANSWER-A device connected to an oxygen cylinder to reduce
cylinder pressure so that it is safe for delivery of oxygen to a patient
Respiratory failure is - ANSWER-inadequacy of breathing with insufficient oxygen
intake
Respiratory failure VS respiratory distress - ANSWER-A patient with respiratory
failure has cyanotic or gray skin color
Your patient has overdosed on a narcotic medication that was prescribed for pain
after a surgical procedure. Apparently, she took four times the prescribed dose,
thinking that she could completely eliminate the pain. This medication has been
known to depress respiration's and lead to what - ANSWER-Hypoxia
The normal, or adequate breathing rate for a 50 year old adult should be what -
ANSWER-12 to 20 breaths per minute
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,How do you know that you are ventilating a patient properly - ANSWER-The
patient's chest rises and falls with each ventilation
The bag-valve mask should be capable of - ANSWER-withstanding cold
temperatures
In ventilating a 22 year old unconscious female, a bag-valve mask should be used
with - ANSWER-A reservoir bag, oxygen tank and a liter flow regulator, oral
airway
When prolonged ventilation need to be done on a patient and there is only one
EMT on the airway, you should consider using a - ANSWER-automatic transport
ventilator
A fully pressurized portable oxygen tank should have approximately what psi -
ANSWER-2000
Which portable oxygen cylinder, when full, lasts the longest when delivering
oxygen - ANSWER-E
Before connecting a regulator to an oxygen supply cylinder, the EMT should -
ANSWER-crack the main valve for one second
Humidified oxygen - ANSWER-not needed in adult patients who are being
transported for short distances
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, Concerns about the dangers of giving too much oxygen to patients with chronic
COPD - ANSWER-are invalid in the out of hospital setting when clinically
appropriate to administer
The oxygen concentration of a nonrebreather mask is between what - ANSWER-
80% and 90%
You are treating a patient who is breathing on his own but is in respiratory distress,
and his SpO2 is 93%. The flow rate of a nonrebreather mask should be -
ANSWER-12 to 15 liters per minute
The oxygen concentration of a nasal cannula is between - ANSWER-24% to 44%
Determine the signs of adequate breathing - ANSWER-1. Look for adequate &
equal expansion of the chest
2. Listen for air entering & exiting the nose, mouth & chest
3. Feel for air moving out of the nose & mouth
4. Check for typical skin coloration
5. Note rate, rhythm, quality, & depth of breathing for a normal person at rest
List the signs if inadequate breathing - ANSWER-1. Altered mental status
2. Chest movements are absent, minimal, or uneven
3. Slow pulse rate in infants & children
4. Movement associated with breathing is found in the abdomen
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Answers 100% Pass
Ventilation - ANSWER-Breathing in and out (inhalation and exhalation)
Alveolar Ventilation - ANSWER-The amount of air that reaches the alveoli during
inhalation
Respiratory arrest - ANSWER-When breathing completely stops
Positive Pressure Ventilation - ANSWER-The process of forcing air and or oxygen
into the lungs when breathing has stopped
Respiratory Failure - ANSWER-The reduction of breathing to the point at which
oxygen intake is not sufficient to support life
Respiration - ANSWER-The diffusion of oxygen and carbon dioxide between the
alveoli and the blood and between the blood and the cells
Pulmonary Respiration - ANSWER-The exchange of oxygen and carbon dioxide
between the alveoli and circulating blood in the pulmonary capillaries
Bag-valve mask (BVM) - ANSWER-A handheld device with a face mask and self-
refilling bag that can be squeezed to provide artificial ventilation's to a patient
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
,Ventuir Mask - ANSWER-A face mask that delivers very specific concentrations
of oxygen by mixing oxygen with inhaled air
Tracheostomy mask - ANSWER-A device designed to be placed over a stoma or
tracheostomy tube to provide supplemental oxygen
Automatic transport ventilator (ATV) - ANSWER-A device that provides positive
pressure ventilation's. It includes settings designed to adjust ventilation rate and
volume, is portable, and is easily carried on an ambulance
Oxygen Cylinder - ANSWER-A cylinder filled with oxygen under pressure
Pressure regulator - ANSWER-A device connected to an oxygen cylinder to reduce
cylinder pressure so that it is safe for delivery of oxygen to a patient
Respiratory failure is - ANSWER-inadequacy of breathing with insufficient oxygen
intake
Respiratory failure VS respiratory distress - ANSWER-A patient with respiratory
failure has cyanotic or gray skin color
Your patient has overdosed on a narcotic medication that was prescribed for pain
after a surgical procedure. Apparently, she took four times the prescribed dose,
thinking that she could completely eliminate the pain. This medication has been
known to depress respiration's and lead to what - ANSWER-Hypoxia
The normal, or adequate breathing rate for a 50 year old adult should be what -
ANSWER-12 to 20 breaths per minute
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
,How do you know that you are ventilating a patient properly - ANSWER-The
patient's chest rises and falls with each ventilation
The bag-valve mask should be capable of - ANSWER-withstanding cold
temperatures
In ventilating a 22 year old unconscious female, a bag-valve mask should be used
with - ANSWER-A reservoir bag, oxygen tank and a liter flow regulator, oral
airway
When prolonged ventilation need to be done on a patient and there is only one
EMT on the airway, you should consider using a - ANSWER-automatic transport
ventilator
A fully pressurized portable oxygen tank should have approximately what psi -
ANSWER-2000
Which portable oxygen cylinder, when full, lasts the longest when delivering
oxygen - ANSWER-E
Before connecting a regulator to an oxygen supply cylinder, the EMT should -
ANSWER-crack the main valve for one second
Humidified oxygen - ANSWER-not needed in adult patients who are being
transported for short distances
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
, Concerns about the dangers of giving too much oxygen to patients with chronic
COPD - ANSWER-are invalid in the out of hospital setting when clinically
appropriate to administer
The oxygen concentration of a nonrebreather mask is between what - ANSWER-
80% and 90%
You are treating a patient who is breathing on his own but is in respiratory distress,
and his SpO2 is 93%. The flow rate of a nonrebreather mask should be -
ANSWER-12 to 15 liters per minute
The oxygen concentration of a nasal cannula is between - ANSWER-24% to 44%
Determine the signs of adequate breathing - ANSWER-1. Look for adequate &
equal expansion of the chest
2. Listen for air entering & exiting the nose, mouth & chest
3. Feel for air moving out of the nose & mouth
4. Check for typical skin coloration
5. Note rate, rhythm, quality, & depth of breathing for a normal person at rest
List the signs if inadequate breathing - ANSWER-1. Altered mental status
2. Chest movements are absent, minimal, or uneven
3. Slow pulse rate in infants & children
4. Movement associated with breathing is found in the abdomen
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 4
