JBL MODULE 3 CORE REVIEW SHEET 2026
ESSENTIAL KNOWLEDGE AND CONCEPT
APPLICATION
◉ Inhalation occurs when the:
A. diaphragm and intercostal muscles relax and cause an increase in
intrathoracic pressure.
B. diaphragm and intercostal muscles ascend and cause an increase
in intrathoracic pressure.
C. diaphragm and intercostal muscles contract and cause a decrease
in intrathoracic pressure.
D. diaphragm ascends and the intercostal muscles contract, causing
a decrease in intrathoracic pressure.
Answer: C. diaphragm and intercostal muscles contract and cause a
decrease in intrathoracic pressure.
◉ Intrapulmonary shunting occurs when:
A: any impairment in circulatory function causes a reduced ability
for oxygen and carbon dioxide to diffuse across the alveolar-
capillary membrane.
B: the presence of pulmonary surfactant causes a decrease in
alveolar surface tension, thus impairing the exchange of gases in the
lungs.
, C: blood coming from the right side of the heart bypasses
nonfunctional alveoli and returns to the left side of the heart in an
unoxygenated state.
D: a decrease in respiratory rate and depth causes carbon dioxide
accumulation in the alveoli and an overall decrease in blood oxygen
levels.
Answer: C: blood coming from the right side of the heart bypasses
nonfunctional alveoli and returns to the left side of the heart in an
unoxygenated state.
◉ Prior to applying a nonrebreathing mask to a patient, you must
ensure that the:
A: one-way valve is sealed
B: reservoir bag is fully inflated
C: flow rate is set at 6 L/min
D: Patient has reduced tidal volume
Answer: B: reservoir bag is fully inflated
◉ Proper technique for suctioning the oropharynx of an adult
patient includes:
A: removing large, solid objects with a tonsil-tip suction catheter.
B: suctioning for up to 1 minute if the patient is well oxygenated.
C: suctioning while withdrawing the catheter from the oropharynx.
D: continuously suctioning patients with copious oral secretions.
ESSENTIAL KNOWLEDGE AND CONCEPT
APPLICATION
◉ Inhalation occurs when the:
A. diaphragm and intercostal muscles relax and cause an increase in
intrathoracic pressure.
B. diaphragm and intercostal muscles ascend and cause an increase
in intrathoracic pressure.
C. diaphragm and intercostal muscles contract and cause a decrease
in intrathoracic pressure.
D. diaphragm ascends and the intercostal muscles contract, causing
a decrease in intrathoracic pressure.
Answer: C. diaphragm and intercostal muscles contract and cause a
decrease in intrathoracic pressure.
◉ Intrapulmonary shunting occurs when:
A: any impairment in circulatory function causes a reduced ability
for oxygen and carbon dioxide to diffuse across the alveolar-
capillary membrane.
B: the presence of pulmonary surfactant causes a decrease in
alveolar surface tension, thus impairing the exchange of gases in the
lungs.
, C: blood coming from the right side of the heart bypasses
nonfunctional alveoli and returns to the left side of the heart in an
unoxygenated state.
D: a decrease in respiratory rate and depth causes carbon dioxide
accumulation in the alveoli and an overall decrease in blood oxygen
levels.
Answer: C: blood coming from the right side of the heart bypasses
nonfunctional alveoli and returns to the left side of the heart in an
unoxygenated state.
◉ Prior to applying a nonrebreathing mask to a patient, you must
ensure that the:
A: one-way valve is sealed
B: reservoir bag is fully inflated
C: flow rate is set at 6 L/min
D: Patient has reduced tidal volume
Answer: B: reservoir bag is fully inflated
◉ Proper technique for suctioning the oropharynx of an adult
patient includes:
A: removing large, solid objects with a tonsil-tip suction catheter.
B: suctioning for up to 1 minute if the patient is well oxygenated.
C: suctioning while withdrawing the catheter from the oropharynx.
D: continuously suctioning patients with copious oral secretions.
