Page 1 of 83
NSG-300 EXAM 3 AND STUDY GUIDE (GCU) NEWEST
2025 TEST BANK| NSG 300 FOUNDATIONS OF
NURSING GUIDE EXAM 3 REVIEW WITH COMPLETE 400
REAL EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS/ GRADED A+ (BRAND NEW!!)
hypoventilation .....ANSWER.....decreased rate or depth of air
movement into the lungs
Causes excessive CO2 retention= respiratory acidosis &
respiratory arrest
S/S: mental status change, dysrhythmias, cardiac arrect,
convulsions, unconsciousness, death
hyperventilation .....ANSWER.....increased rate and depth of
breathing
Causes: severe anxiety, infection, drugs, acid-base imbalance
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S/S: rapid respirations, sighing breaths, numbness/tingling of
extremities, light-headedness, LOC
hypoxia .....ANSWER.....lack of oxygen at the cellular level
-check HgB levels
hypoxia cause .....ANSWER.....-decreased hemoglobin and
lowered oxygen- carrying capacity of the blood;
-diminished concentration of inspired oxygen (high-altitude);
-inability of tissues to extract oxygen from the blood (cyanide
poisoning);
-decreased diffusion of oxygen from alveoli to the blood
(pneumonia);
poor tissue perfusion with oxygenated blood (shock)
-impaired ventilated (chest trauma)
early signs of hypoxia .....ANSWER.....Restlessness
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Agitation
Tachycardia
-inc BP and RR
late signs of hypoxia .....ANSWER.....Bradycardia
Extreme restlessness
Dyspnea
-dec RR
cyanosis .....ANSWER.....bluish discoloration of the skin due to lack
of oxygen
NOT a reliable sign of hypoxia
central cyanosis .....ANSWER.....observed on tongue, soft palate,
conjunctiva.
peripheral cyanosis .....ANSWER.....seen in extremities, nail beds,
earlobes (vasoconstriction)
, Page 4 of 83
what influences the capacity of blood to carry O2
.....ANSWER.....1. amount of dissolved O2 in plasma
2. amount of HgB
3. ability of HgB to bind with O2
tidal volume .....ANSWER.....Amount of air that moves in and out
of the lungs during a normal breath
what affects tidal volume .....ANSWER.....Pregnancy, obesity,
exercise, obstructive/restrictive lungs, conditions of lungs
inspiration .....ANSWER.....active process of breathing oxygen in;
stimulated by chemical receptors in the aorta
expiration .....ANSWER.....passive process of breathing out;
depends on elastic recoil properties of the lungs
surfactant .....ANSWER.....chemical produced in lugs to maintain
surface tension/to keep alveoli from collapsing
NSG-300 EXAM 3 AND STUDY GUIDE (GCU) NEWEST
2025 TEST BANK| NSG 300 FOUNDATIONS OF
NURSING GUIDE EXAM 3 REVIEW WITH COMPLETE 400
REAL EXAM QUESTIONS AND CORRECT VERIFIED
ANSWERS/ GRADED A+ (BRAND NEW!!)
hypoventilation .....ANSWER.....decreased rate or depth of air
movement into the lungs
Causes excessive CO2 retention= respiratory acidosis &
respiratory arrest
S/S: mental status change, dysrhythmias, cardiac arrect,
convulsions, unconsciousness, death
hyperventilation .....ANSWER.....increased rate and depth of
breathing
Causes: severe anxiety, infection, drugs, acid-base imbalance
,Page 2 of 83
S/S: rapid respirations, sighing breaths, numbness/tingling of
extremities, light-headedness, LOC
hypoxia .....ANSWER.....lack of oxygen at the cellular level
-check HgB levels
hypoxia cause .....ANSWER.....-decreased hemoglobin and
lowered oxygen- carrying capacity of the blood;
-diminished concentration of inspired oxygen (high-altitude);
-inability of tissues to extract oxygen from the blood (cyanide
poisoning);
-decreased diffusion of oxygen from alveoli to the blood
(pneumonia);
poor tissue perfusion with oxygenated blood (shock)
-impaired ventilated (chest trauma)
early signs of hypoxia .....ANSWER.....Restlessness
,Page 3 of 83
Agitation
Tachycardia
-inc BP and RR
late signs of hypoxia .....ANSWER.....Bradycardia
Extreme restlessness
Dyspnea
-dec RR
cyanosis .....ANSWER.....bluish discoloration of the skin due to lack
of oxygen
NOT a reliable sign of hypoxia
central cyanosis .....ANSWER.....observed on tongue, soft palate,
conjunctiva.
peripheral cyanosis .....ANSWER.....seen in extremities, nail beds,
earlobes (vasoconstriction)
, Page 4 of 83
what influences the capacity of blood to carry O2
.....ANSWER.....1. amount of dissolved O2 in plasma
2. amount of HgB
3. ability of HgB to bind with O2
tidal volume .....ANSWER.....Amount of air that moves in and out
of the lungs during a normal breath
what affects tidal volume .....ANSWER.....Pregnancy, obesity,
exercise, obstructive/restrictive lungs, conditions of lungs
inspiration .....ANSWER.....active process of breathing oxygen in;
stimulated by chemical receptors in the aorta
expiration .....ANSWER.....passive process of breathing out;
depends on elastic recoil properties of the lungs
surfactant .....ANSWER.....chemical produced in lugs to maintain
surface tension/to keep alveoli from collapsing
