JBL MODULE 2 PRACTICE EXAM 2026 LATEST
UPDATE QUESTIONS AND CORRECT VERIFIED
ANSWERS ALREADY GRADED A+
Which of the following is a late sign of hypoxia?
A. Restlessness
B. Anxiety
C. Cyanosis
D. Tachycardia - ans-C. Cyanosis
Which of the following organs or tissues can survive the longest without oxygen?
A. Muscle
B. Liver
C. Heart
D. Kidneys - ans-A. Muscle
Which of the following oxygen flowmeters is NOT affected by gravity and can be used in
any position when attached to an oxygen cylinder?
Select one:
A. Vertical-position flowmeter
B. Bourdon-gauge flowmeter
C. Pressure-compensated flowmeter
D. Ball-and-float flowmeter - ans-B. Bourdon-gauge flowmeter
Which of the following statements regarding oxygenation and ventilation is correct?
A. In carbon monoxide (CO) poisoning, ventilation is impaired because CO binds to
oxygen very quickly.
B. In mines or confined places, where oxygen levels are low, ventilation may continue
despite adequate oxygenation.
C. Oxygenation without adequate ventilation can occur in climbers who quickly ascend
to an altitude of lower atmospheric pressure.
D. Oxygenation is the movement of air into and out of the lungs, whereas ventilation is
the exchange of gases. - ans-B. In mines or confined places, where oxygen levels
are low, ventilation may continue despite adequate oxygenation
Which of the following statements regarding positive-pressure ventilation is correct?
,A. With positive-pressure ventilation, more volume is required to have the same effects
as normal breathing.
B. Unlike negative-pressure ventilation, positive-pressure ventilation does not affect the
esophageal opening pressure.
C. To prevent hypotension, the EMT should increase the rate and force of positive-
pressure ventilation.
D. Positive-pressure ventilation allows blood to naturally be pulled back to the heart
from the body. - ans-A. With positive-pressure ventilation, more volume is required
to have the same effects as normal breathing
Which of the following statements regarding the one-person bag-valve mask technique
is correct?
A. The C-clamp method of holding the mask to the face is not effective when ventilating
a patient with a bag-valve mask.
B. The bag-valve mask delivers more tidal volume and a higher oxygen concentration
than the mouth-to-mask technique.
C. Bag-valve mask ventilations should be delivered every 2 seconds when the device is
being operated by one person.
D. Adequate tidal volume is often difficult to achieve when one EMT is operating the
bag-valve mask. - ans-D. Adequate tidal volume is often difficult to achieve when
one EMT is operating the bag-valve mask.
Which of the following structures is contained within the mediastinum?
A. Esophagus
B. Bronchioles
C. Lungs
D. Larynx - ans-A. Esophagus
Which of the following would cause an increase in the amount of exhaled carbon
dioxide?
A. Excessive ventilation
B. Increased cardiac output
C. Cardiopulmonary arrest
D. Anaerobic metabolism - ans-B. Increased cardiac output
While eating dinner, your partner suddenly grabs his throat and has a panicked look on
his face. He has a weak cough, faint inspiratory stridor, and cyanosis around the lips.
You should:
A. place him in a supine position and open his airway.
B. encourage him to cough as forcefully as he can.
C. stand behind him and administer abdominal thrusts.
, D. deliver up to five back blows and reassess him. - ans-C. stand behind him and
administer abdominal thrusts.
While providing CPAP to a patient in severe respiratory distress, you note that his heart
rate has increased by 20 beats/min. He is conscious, but is no longer following verbal
commands. You should:
A. remove the CPAP device and ventilate him with a bag-valve mask.
B. decrease the amount of pressure that the CPAP device is delivering.
C. increase the amount of pressure that the CPAP device is delivering.
D. remove the CPAP device and apply oxygen by nonrebreathing mask. - ans-A.
remove the CPAP device and ventilate him with a bag-valve mask.
With a good mask-to-face seal and an oxygen flow rate of 15 L/min, the nonrebreathing
mask is capable of delivering up to ______% inspired oxygen.
A. 90
B. 80
C. 100
D. 70 - ans-A. 90
Without adequate oxygen, the body's cells:
A. cease metabolism altogether, resulting in carbon dioxide accumulation in the blood.
B. begin to metabolize fat, resulting in the production and accumulation of ketoacids.
C. incompletely convert glucose into energy, and lactic acid accumulates in the blood.
D. rely solely on glucose, which is completely converted into adenosine triphosphate. -
ans-C. incompletely convert glucose into energy, and lactic acid accumulates in
the blood.
You and your partner are caring for a critically injured patient. Your partner is controlling
severe bleeding from the patient's lower extremities as you attempt ventilations with a
bag-valve mask. After repositioning the mask several times, you are unable to
effectively ventilate the patient. You should:
Select one:
A. continue attempted ventilations and transport immediately.
B. suction the patient's airway for 30 seconds and reattempt ventilations.
C. hyperextend the patient's head and reattempt ventilations.
D. begin ventilations using the mouth-to-mask technique. - ans-D. begin ventilations
using the mouth-to-mask technique.
You are ventilating a 40-year-old uninjured man who is apneic but has a pulse. When
your partner reassesses his blood pressure, she notes that it has decreased
significantly from previous readings. You should:
A. increase the rate at which you are ventilating and reassess his blood pressure.
UPDATE QUESTIONS AND CORRECT VERIFIED
ANSWERS ALREADY GRADED A+
Which of the following is a late sign of hypoxia?
A. Restlessness
B. Anxiety
C. Cyanosis
D. Tachycardia - ans-C. Cyanosis
Which of the following organs or tissues can survive the longest without oxygen?
A. Muscle
B. Liver
C. Heart
D. Kidneys - ans-A. Muscle
Which of the following oxygen flowmeters is NOT affected by gravity and can be used in
any position when attached to an oxygen cylinder?
Select one:
A. Vertical-position flowmeter
B. Bourdon-gauge flowmeter
C. Pressure-compensated flowmeter
D. Ball-and-float flowmeter - ans-B. Bourdon-gauge flowmeter
Which of the following statements regarding oxygenation and ventilation is correct?
A. In carbon monoxide (CO) poisoning, ventilation is impaired because CO binds to
oxygen very quickly.
B. In mines or confined places, where oxygen levels are low, ventilation may continue
despite adequate oxygenation.
C. Oxygenation without adequate ventilation can occur in climbers who quickly ascend
to an altitude of lower atmospheric pressure.
D. Oxygenation is the movement of air into and out of the lungs, whereas ventilation is
the exchange of gases. - ans-B. In mines or confined places, where oxygen levels
are low, ventilation may continue despite adequate oxygenation
Which of the following statements regarding positive-pressure ventilation is correct?
,A. With positive-pressure ventilation, more volume is required to have the same effects
as normal breathing.
B. Unlike negative-pressure ventilation, positive-pressure ventilation does not affect the
esophageal opening pressure.
C. To prevent hypotension, the EMT should increase the rate and force of positive-
pressure ventilation.
D. Positive-pressure ventilation allows blood to naturally be pulled back to the heart
from the body. - ans-A. With positive-pressure ventilation, more volume is required
to have the same effects as normal breathing
Which of the following statements regarding the one-person bag-valve mask technique
is correct?
A. The C-clamp method of holding the mask to the face is not effective when ventilating
a patient with a bag-valve mask.
B. The bag-valve mask delivers more tidal volume and a higher oxygen concentration
than the mouth-to-mask technique.
C. Bag-valve mask ventilations should be delivered every 2 seconds when the device is
being operated by one person.
D. Adequate tidal volume is often difficult to achieve when one EMT is operating the
bag-valve mask. - ans-D. Adequate tidal volume is often difficult to achieve when
one EMT is operating the bag-valve mask.
Which of the following structures is contained within the mediastinum?
A. Esophagus
B. Bronchioles
C. Lungs
D. Larynx - ans-A. Esophagus
Which of the following would cause an increase in the amount of exhaled carbon
dioxide?
A. Excessive ventilation
B. Increased cardiac output
C. Cardiopulmonary arrest
D. Anaerobic metabolism - ans-B. Increased cardiac output
While eating dinner, your partner suddenly grabs his throat and has a panicked look on
his face. He has a weak cough, faint inspiratory stridor, and cyanosis around the lips.
You should:
A. place him in a supine position and open his airway.
B. encourage him to cough as forcefully as he can.
C. stand behind him and administer abdominal thrusts.
, D. deliver up to five back blows and reassess him. - ans-C. stand behind him and
administer abdominal thrusts.
While providing CPAP to a patient in severe respiratory distress, you note that his heart
rate has increased by 20 beats/min. He is conscious, but is no longer following verbal
commands. You should:
A. remove the CPAP device and ventilate him with a bag-valve mask.
B. decrease the amount of pressure that the CPAP device is delivering.
C. increase the amount of pressure that the CPAP device is delivering.
D. remove the CPAP device and apply oxygen by nonrebreathing mask. - ans-A.
remove the CPAP device and ventilate him with a bag-valve mask.
With a good mask-to-face seal and an oxygen flow rate of 15 L/min, the nonrebreathing
mask is capable of delivering up to ______% inspired oxygen.
A. 90
B. 80
C. 100
D. 70 - ans-A. 90
Without adequate oxygen, the body's cells:
A. cease metabolism altogether, resulting in carbon dioxide accumulation in the blood.
B. begin to metabolize fat, resulting in the production and accumulation of ketoacids.
C. incompletely convert glucose into energy, and lactic acid accumulates in the blood.
D. rely solely on glucose, which is completely converted into adenosine triphosphate. -
ans-C. incompletely convert glucose into energy, and lactic acid accumulates in
the blood.
You and your partner are caring for a critically injured patient. Your partner is controlling
severe bleeding from the patient's lower extremities as you attempt ventilations with a
bag-valve mask. After repositioning the mask several times, you are unable to
effectively ventilate the patient. You should:
Select one:
A. continue attempted ventilations and transport immediately.
B. suction the patient's airway for 30 seconds and reattempt ventilations.
C. hyperextend the patient's head and reattempt ventilations.
D. begin ventilations using the mouth-to-mask technique. - ans-D. begin ventilations
using the mouth-to-mask technique.
You are ventilating a 40-year-old uninjured man who is apneic but has a pulse. When
your partner reassesses his blood pressure, she notes that it has decreased
significantly from previous readings. You should:
A. increase the rate at which you are ventilating and reassess his blood pressure.
