Fundamentals OF
Nursing:
Oxygenation and
Nutrition
Exam On Fundamentals Of Nursing
: Oxygenation and Nutrition Answer
Key
Content Outline
1. Oxygenation
2. Nutrition
2026/2027 Frequently Most Tested
Questions and 100% Accurate From
Past papers | Graded A+ , Reviewed
and Updated | 100% Guarantee Pass |
Latest Exam and Newest Version!!!
A nurse is reviewing the anatomy of the upper respiratory tract with a nursing student.
Which structure consists of hairs that line the vestibule of the nose and function as a
filtering mechanism for foreign particles?
,a. Cilia
b. Nares
c. Carina
d. Vibrissae
✔️ Correct Answer: D
Rationale:
Vibrissae are the coarse hairs located in the vestibule of the nasal cavity that trap large
particles such as dust and debris, serving as the first line of defense against inhaled foreign
objects. Option D is correct. Cilia are microscopic hair-like structures found in the lower
respiratory tract, nares are the nasal openings, and the carina is the bifurcation point of the
trachea.
A nursing instructor is teaching about the functions of the upper airway. Which of the
following is NOT a function of the upper airway?
a. Providing a clearance mechanism such as coughing
b. Transporting gases to the lower airways
c. Warming, filtering, and humidifying inspired air
d. Protecting the lower airway from foreign material
✔️ Correct Answer: B
Rationale:
Transporting gases to the lower airways is primarily a function of the lower airway,
specifically the trachea and bronchi. The upper airway functions include warming, filtering,
and humidifying air (Option C), protecting the lower airway from foreign material (Option
D), and providing clearance mechanisms such as coughing (Option A). Option B is correct
because it is NOT a primary function of the upper airway.
A nursing student is studying the paranasal sinuses. Which sinus is located between the
eyes and extends backward into the skull?
a. Ethmoid
b. Sphenoid
c. Maxillary
d. Frontal
✔️ Correct Answer: A
Rationale:
The ethmoid sinuses are located between the eyes, behind the bridge of the nose, and
extend backward into the skull. Option A is correct. The sphenoid sinus is located behind
, the ethmoid sinuses, the maxillary sinuses are in the cheek area below the eyes, and the
frontal sinuses are located in the forehead above the eyes.
A client accidentally aspirates a large piece of nut that passes the carina. Based on
anatomical probability, where will the foreign object most likely lodge?
a. Right main stem bronchus
b. Left main stem bronchus
c. Be dislodged in between the carina
d. Be blocked by the closed epiglottis
✔️ Correct Answer: A
Rationale:
The right main stem bronchus is wider, shorter, and more vertical than the left main stem
bronchus, making it the more likely location for aspirated foreign objects to lodge. Option
A is correct. The carina is the bifurcation point, and the epiglottis covers the trachea during
swallowing but does not block aspirated objects.
A client asks the nurse about the oxygen concentration in the air and human requirements.
Which response by the nurse is most accurate?
a. "Man requires 21% of oxygen and we have 21% available in our air."
b. "Man requires 16% of oxygen and we have 35% available in our air."
c. "Man requires 10% of oxygen and we have 50% available in our air."
d. "Man requires 21% of oxygen and we have 21% available in our air."
✔️ Correct Answer: A or D (Both identical)
Rationale:
The atmospheric air contains approximately 21% oxygen, and humans require a minimum
of approximately 21% oxygen concentration for normal physiological function. Both
Options A and D state this accurately. The other options present incorrect percentages for
both atmospheric oxygen and human requirements.
A nursing student is reviewing lung anatomy. How many lobes are present in the right
lung?
a. One
b. Two
Nursing:
Oxygenation and
Nutrition
Exam On Fundamentals Of Nursing
: Oxygenation and Nutrition Answer
Key
Content Outline
1. Oxygenation
2. Nutrition
2026/2027 Frequently Most Tested
Questions and 100% Accurate From
Past papers | Graded A+ , Reviewed
and Updated | 100% Guarantee Pass |
Latest Exam and Newest Version!!!
A nurse is reviewing the anatomy of the upper respiratory tract with a nursing student.
Which structure consists of hairs that line the vestibule of the nose and function as a
filtering mechanism for foreign particles?
,a. Cilia
b. Nares
c. Carina
d. Vibrissae
✔️ Correct Answer: D
Rationale:
Vibrissae are the coarse hairs located in the vestibule of the nasal cavity that trap large
particles such as dust and debris, serving as the first line of defense against inhaled foreign
objects. Option D is correct. Cilia are microscopic hair-like structures found in the lower
respiratory tract, nares are the nasal openings, and the carina is the bifurcation point of the
trachea.
A nursing instructor is teaching about the functions of the upper airway. Which of the
following is NOT a function of the upper airway?
a. Providing a clearance mechanism such as coughing
b. Transporting gases to the lower airways
c. Warming, filtering, and humidifying inspired air
d. Protecting the lower airway from foreign material
✔️ Correct Answer: B
Rationale:
Transporting gases to the lower airways is primarily a function of the lower airway,
specifically the trachea and bronchi. The upper airway functions include warming, filtering,
and humidifying air (Option C), protecting the lower airway from foreign material (Option
D), and providing clearance mechanisms such as coughing (Option A). Option B is correct
because it is NOT a primary function of the upper airway.
A nursing student is studying the paranasal sinuses. Which sinus is located between the
eyes and extends backward into the skull?
a. Ethmoid
b. Sphenoid
c. Maxillary
d. Frontal
✔️ Correct Answer: A
Rationale:
The ethmoid sinuses are located between the eyes, behind the bridge of the nose, and
extend backward into the skull. Option A is correct. The sphenoid sinus is located behind
, the ethmoid sinuses, the maxillary sinuses are in the cheek area below the eyes, and the
frontal sinuses are located in the forehead above the eyes.
A client accidentally aspirates a large piece of nut that passes the carina. Based on
anatomical probability, where will the foreign object most likely lodge?
a. Right main stem bronchus
b. Left main stem bronchus
c. Be dislodged in between the carina
d. Be blocked by the closed epiglottis
✔️ Correct Answer: A
Rationale:
The right main stem bronchus is wider, shorter, and more vertical than the left main stem
bronchus, making it the more likely location for aspirated foreign objects to lodge. Option
A is correct. The carina is the bifurcation point, and the epiglottis covers the trachea during
swallowing but does not block aspirated objects.
A client asks the nurse about the oxygen concentration in the air and human requirements.
Which response by the nurse is most accurate?
a. "Man requires 21% of oxygen and we have 21% available in our air."
b. "Man requires 16% of oxygen and we have 35% available in our air."
c. "Man requires 10% of oxygen and we have 50% available in our air."
d. "Man requires 21% of oxygen and we have 21% available in our air."
✔️ Correct Answer: A or D (Both identical)
Rationale:
The atmospheric air contains approximately 21% oxygen, and humans require a minimum
of approximately 21% oxygen concentration for normal physiological function. Both
Options A and D state this accurately. The other options present incorrect percentages for
both atmospheric oxygen and human requirements.
A nursing student is reviewing lung anatomy. How many lobes are present in the right
lung?
a. One
b. Two
