JB Learning Registry Practice Exam Preparation
JB LEARNING REGISTRY PRACTICE EXAM PREPARATION
NEWEST 2025/2026 COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |BRAND NEW
VERSION!!
You are administering oxygen at 15 L/min to a patient with respiratory distress. If
you are using a D cylinder (cylinder constant, 0.16), which reads 1,500 psi, how
long will it take before you need to replace the oxygen cylinder?
A: 18 minutes
B: 9 minutes
C: 14 minutes
D: 11 minutes
C: 14 minutes
Reason:
The length of time you can use an oxygen cylinder depends on the type of
cylinder you are using, the pressure in the cylinder, and the oxygen flow rate. A
D cylinder is a small oxygen cylinder that is usually carried in the jump kit to the
patient; it has a cylinder constant of 0.16. The following method can be used to
calculate cylinder duration: gauge pressure (in psi) - the safe residual pressure
(200 psi) × the cylinder constant ÷ flow rate in L/min. Using this formula, your D
cylinder will become depleted in about 14 minutes, as follows: 1,500 (psi) - 200
(safe residual pressure) × 0.16 (cylinder constant) ÷ 15 (flow rate in L/min) =
13.86 (14 minutes). A full oxygen cylinder should contain 2,000 psi. The safe
residual pressure is the lowest acceptable cylinder pressure before it should be
replaced; it is usually 200 psi, although some EMS systems use 500 psi as a safe
residual pressure. Although you will switch to your on-board oxygen (M
cylinder) source when you load the patient into the ambulance, you should
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, JB Learning Registry Practice Exam Preparation
always have at least one back-up portable cylinder (preferably two) when
administering oxygen to a patient at the scene, especially if you are giving high-
flow (12 to 15 L/min) oxygen and/or your on-scene time will be delayed (eg,
lengthy extrication, moving a patient from the second floor, etc).
You are called to the residence of a 39-year-old male with flu-like symptoms. The
patient tells you that he has been feeling ill for the last 2 days. He has a fever,
headache, and diarrhea, and asks that you take him to the hospital. His blood
pressure is 120/60 mm Hg, his pulse is 110 beats/min, and his respirations are 16
breaths/min. You should:
A: request an ALS ambulance to the scene to start an IV line.
B: ask him if he has a history of HIV infection or hepatitis.
C: offer oxygen and transport him in a position of comfort.
D: advise him that he can drive himself to his family physician.
C: offer oxygen and transport him in a position of comfort.
Reason:
Although the patient is likely experiencing the flu, there are other diseases,
some of which are communicable, that can cause similar symptoms. The patient
is requesting EMS transport; failure to comply constitutes abandonment.
Although he is tachycardic, the remainder of his vital signs are stable; therefore,
requesting an ALS ambulance to the scene to start an IV is not necessary. Simply
transport him in a position of comfort and offer him supplemental oxygen. If the
patient is infected with HIV or hepatitis, he may choose to voluntarily disclose
that information. However, to inquire about infection with such diseases is
unethical.
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, JB Learning Registry Practice Exam Preparation
Which of the following statements regarding one-rescuer CPR is correct?
A: The chest should be allowed to fully recoil after each compression.
B: You should assess the patient for a pulse after 3 cycles of CPR.
C: A compression to ventilation ratio of 15:2 should be delivered.
D: Ventilations should be delivered over a period of 2 to 3 seconds.
A: The chest should be allowed to fully recoil after each compression.
Reason:
When performing CPR on any patient, you should allow the chest to fully recoil
after each compression. Incomplete chest recoil causes increased intrathoracic
pressure, which may impair blood return to the heart. Assess the patient's pulse
after every 5 cycles (about 2 minutes) of CPR; take no longer than 5 to 10
seconds to do this. A compression to ventilation ratio of 30:2 should be
performed during all adult and one-rescuer CPR (adult, child, and infant), except
for newborns. A compression to ventilation ratio of 15:2 is used during two-
rescuer infant and child CPR. Ventilations should be delivered over a period of 1
second each, just enough to produce visible chest rise.
Firefighters have rescued a man from his burning house. He is conscious and alert,
but is experiencing significant respiratory distress. He has a brassy cough and
singed nasal hairs. The MOST immediate threat to this patient's life is:
A: severe burns.
B: hypothermia.
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, JB Learning Registry Practice Exam Preparation
C: severe infection.
D: airway swelling.
D: airway swelling.
Reason:
Because of the patient's signs and symptoms, your must immediate concern
should be the potential for swelling and closure of the upper airway; be
prepared to assist the patient's ventilations. Signs of upper airway burns include
respiratory distress, singed facial and/or nasal hairs, a brassy cough, difficulty
breathing, and coughing up sooty sputum. Infection, the burns themselves, and
hypothermia should concern you; however, airway problems pose the most
immediate life threat.
You are dispatched to a residence for an elderly female who has possibly suffered
a stroke. You find her lying supine in her bed. She is semiconscious; has vomited;
and has slow, irregular breathing. You should:
A: perform a head tilt-chin lift and insert an oral airway.
B: insert a nasal airway and begin assisting her breathing.
C: manually open her airway and suction her oropharynx.
D: administer high-flow oxygen and place her on her side.
C: manually open her airway and suction her oropharynx.
Reason:
This patient's airway is in immediate jeopardy! The first step in caring for any
semi- or unconscious patient is to manually open the airway (eg, head tilt-chin
lift, jaw-thrust) and ensure it is clear of obstructions or secretions. Because the
patient has vomited, she likely has vomitus in her mouth, which must be
removed with suction before she aspirates it into her lungs. Mortality increases
4|Page
JB LEARNING REGISTRY PRACTICE EXAM PREPARATION
NEWEST 2025/2026 COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |BRAND NEW
VERSION!!
You are administering oxygen at 15 L/min to a patient with respiratory distress. If
you are using a D cylinder (cylinder constant, 0.16), which reads 1,500 psi, how
long will it take before you need to replace the oxygen cylinder?
A: 18 minutes
B: 9 minutes
C: 14 minutes
D: 11 minutes
C: 14 minutes
Reason:
The length of time you can use an oxygen cylinder depends on the type of
cylinder you are using, the pressure in the cylinder, and the oxygen flow rate. A
D cylinder is a small oxygen cylinder that is usually carried in the jump kit to the
patient; it has a cylinder constant of 0.16. The following method can be used to
calculate cylinder duration: gauge pressure (in psi) - the safe residual pressure
(200 psi) × the cylinder constant ÷ flow rate in L/min. Using this formula, your D
cylinder will become depleted in about 14 minutes, as follows: 1,500 (psi) - 200
(safe residual pressure) × 0.16 (cylinder constant) ÷ 15 (flow rate in L/min) =
13.86 (14 minutes). A full oxygen cylinder should contain 2,000 psi. The safe
residual pressure is the lowest acceptable cylinder pressure before it should be
replaced; it is usually 200 psi, although some EMS systems use 500 psi as a safe
residual pressure. Although you will switch to your on-board oxygen (M
cylinder) source when you load the patient into the ambulance, you should
1|Page
, JB Learning Registry Practice Exam Preparation
always have at least one back-up portable cylinder (preferably two) when
administering oxygen to a patient at the scene, especially if you are giving high-
flow (12 to 15 L/min) oxygen and/or your on-scene time will be delayed (eg,
lengthy extrication, moving a patient from the second floor, etc).
You are called to the residence of a 39-year-old male with flu-like symptoms. The
patient tells you that he has been feeling ill for the last 2 days. He has a fever,
headache, and diarrhea, and asks that you take him to the hospital. His blood
pressure is 120/60 mm Hg, his pulse is 110 beats/min, and his respirations are 16
breaths/min. You should:
A: request an ALS ambulance to the scene to start an IV line.
B: ask him if he has a history of HIV infection or hepatitis.
C: offer oxygen and transport him in a position of comfort.
D: advise him that he can drive himself to his family physician.
C: offer oxygen and transport him in a position of comfort.
Reason:
Although the patient is likely experiencing the flu, there are other diseases,
some of which are communicable, that can cause similar symptoms. The patient
is requesting EMS transport; failure to comply constitutes abandonment.
Although he is tachycardic, the remainder of his vital signs are stable; therefore,
requesting an ALS ambulance to the scene to start an IV is not necessary. Simply
transport him in a position of comfort and offer him supplemental oxygen. If the
patient is infected with HIV or hepatitis, he may choose to voluntarily disclose
that information. However, to inquire about infection with such diseases is
unethical.
2|Page
, JB Learning Registry Practice Exam Preparation
Which of the following statements regarding one-rescuer CPR is correct?
A: The chest should be allowed to fully recoil after each compression.
B: You should assess the patient for a pulse after 3 cycles of CPR.
C: A compression to ventilation ratio of 15:2 should be delivered.
D: Ventilations should be delivered over a period of 2 to 3 seconds.
A: The chest should be allowed to fully recoil after each compression.
Reason:
When performing CPR on any patient, you should allow the chest to fully recoil
after each compression. Incomplete chest recoil causes increased intrathoracic
pressure, which may impair blood return to the heart. Assess the patient's pulse
after every 5 cycles (about 2 minutes) of CPR; take no longer than 5 to 10
seconds to do this. A compression to ventilation ratio of 30:2 should be
performed during all adult and one-rescuer CPR (adult, child, and infant), except
for newborns. A compression to ventilation ratio of 15:2 is used during two-
rescuer infant and child CPR. Ventilations should be delivered over a period of 1
second each, just enough to produce visible chest rise.
Firefighters have rescued a man from his burning house. He is conscious and alert,
but is experiencing significant respiratory distress. He has a brassy cough and
singed nasal hairs. The MOST immediate threat to this patient's life is:
A: severe burns.
B: hypothermia.
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, JB Learning Registry Practice Exam Preparation
C: severe infection.
D: airway swelling.
D: airway swelling.
Reason:
Because of the patient's signs and symptoms, your must immediate concern
should be the potential for swelling and closure of the upper airway; be
prepared to assist the patient's ventilations. Signs of upper airway burns include
respiratory distress, singed facial and/or nasal hairs, a brassy cough, difficulty
breathing, and coughing up sooty sputum. Infection, the burns themselves, and
hypothermia should concern you; however, airway problems pose the most
immediate life threat.
You are dispatched to a residence for an elderly female who has possibly suffered
a stroke. You find her lying supine in her bed. She is semiconscious; has vomited;
and has slow, irregular breathing. You should:
A: perform a head tilt-chin lift and insert an oral airway.
B: insert a nasal airway and begin assisting her breathing.
C: manually open her airway and suction her oropharynx.
D: administer high-flow oxygen and place her on her side.
C: manually open her airway and suction her oropharynx.
Reason:
This patient's airway is in immediate jeopardy! The first step in caring for any
semi- or unconscious patient is to manually open the airway (eg, head tilt-chin
lift, jaw-thrust) and ensure it is clear of obstructions or secretions. Because the
patient has vomited, she likely has vomitus in her mouth, which must be
removed with suction before she aspirates it into her lungs. Mortality increases
4|Page
