1. A patient has had a head
in- jury affecting the C
brainstem. What is located (RATIONALE: The respiratory center is located in the
in the brain- stem that brainstem, specifically in the medulla oblongata and
may affect respira- tory
function? pons, and it plays a crucial role in controlling the rate
and depth of breathing.
a. chemoreceptors
b. stretch receptors INCORRECT ANSWERS:
c. respiratory center a. Chemoreceptors are located in the carotid bodies
d. oxygen center and aortic bodies, not the brainstem, and they detect
changes in blood gases.
b. Stretch receptors are located in the lungs, not the
brainstem, and they regulate lung expansion.
d. There is no specific oxygen center in the
2. Which of the following dis- brainstem related to respiratory control; oxygen levels
are detected by chemorecep- tors.)
A
eases may result in decreased (RATIONALE: Emphysema may result in decreased
lung compli-
lung compliance? ance due to damage to the alveoli, leading to a loss of
elasticity in the lung tissue, which makes it harder for
a. emphysema the lungs to expand properly.
b. appendicitis
c. acne INCORRECT ANSWERS:
d. chronic diarrhea b. Appendicitis attects the appendix and does not
impact lung compliance.
c. Acne is a skin condition and has no ettect on lung
function.
d. Chronic diarrhea attects the gastrointestinal system
3. A nurse is caring for a and does not directly influence lung compliance.)
pa-
A
,NURA 303 Ch 40: Oxygenation And Perfusion Questions And Correct Answers
tient with pneumonia. The pa- (RATIONALE: The patient's low oxygen saturation in
pneumo-
tient's oxygen saturation nia demonstrates changes in the alveolar-capillary
is below normal. What
abnor- membrane and dittusion, as the infection causes
inflammation and fluid
, NURA 303 Ch 40: Oxygenation And Perfusion Questions And Correct Answers
mal respiratory process buildup in the lungs, impairing the exchange of
does this demonstrate?
oxygen and carbon dioxide.
a.changes in the alveolar-cap- INCORRECT ANSWERS:
illary membrane and b. Alterations in the structure of the ribs and
diffu- sion diaphragm could attect breathing mechanics but are not
typically associated with
b. alterations in the structures pneumonia.
of the ribs and diaphragm c. Rapid decreases in atmospheric and intra-
c. rapid decreases in pulmonic pres- sures do not relate to pneumonia or
atmos- pheric and intra- its ettects on oxygen saturation.
pulmonic pressures
d. lower-than-normal concen- d. The concentration of environmental oxygen is not
typically a factor in pneumonia unless the patient is
in a low-oxygen
trations of environmental oxy- environment, which is not indicated here.)
gen
4. While reading a physician's
progress notes, a student D
notes that an assigned pa- (RATIONALE: In a patient with hypoxia, the student would
tient is having hypoxia. expect to find dyspnea (diflculty breathing), tachycardia
What abnormal
assessments would the (fast heart rate), and cyanosis (bluish discoloration of the
student expect to find? skin), which are common signs of low oxygen levels in
the body.
a. abdominal pain,
hyperther- mia, dry skin
INCORRECT ANSWERS:
b. diarrhea, flatulence,
de- creased skin turgor a. Abdominal pain, hyperthermia, and dry skin are not
c. hypotension, typically associated with hypoxia.
reddened skin, edema b. Diarrhea, flatulence, and decreased skin turgor are
d. dyspnea,
tachycardia, cyanosis related to gastrointestinal issues and dehydration, not
hypoxia.
c. Hypotension, reddened skin, and edema can
indicate other health issues but are not classic signs