NUR 242 MED SURG EXAM 3 || MOST RECENT
EXAM 2026-2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ | BRAND NEW
EXAM | JUST RELEASED!!
What are the causes of acute respiratory failure? - ANSWER-
emphysema;
pneumonia;
asthma;
CNS disorders;
shock neuromuscular
disorders;
trauma
What are the manifestations of acute respiratory failure? -
ANSWER-confusion,
decreased LOC;
tachypnea,
tachycardia;
tremors;
hypotension;
cyanosis, retractions, dysrhythmias,
cool/clammy skin
What are the functions of water in the body? - ANSWER-
nutrient and waste transport in blood; skin structure and
resilience; digestion;
,temperature maintenance- sweat cools down body;
lubrication of joints and membranes;
chemical reactions;
IgA (helps to protect eyes, throat, mouth from infection)
function
What is the total body water composition in adults? -
ANSWER-total = 60% of
body
weight;
2/3 (40%) intracellular- in
the cells;
1/3 (20%)
extracellular
What is the composition of extracellular fluid? -
ANSWER-total = 20%;
14%- interstitial (space between the cells and
blood vessels);
5%-
plasma;
1%-
other
What is the composition of the ECF, plasma, and interstitial
fluids? - ANSWER-
large amounts of sodium and
chloride;
,moderate amounts of
bicarbonate;
small quantities of potassium, magnesium, calcium,
and phosphorus
What is the composition of the ICF? - ANSWER-almost no
calcium; small amounts of sodium, chloride, bicarbonate,
and phosphorus;
moderate amounts of magnesium;
large amounts of potassium- sodium-potassium pump pushes
potassium into the cell while pumping sodium out of the cell
What is the total body water composition of infants, adults,
and elderly? -
ANSWER-infants =
75%;
adults =
60%;
elderly =
50%
What are the mechanisms controlling fluid and
electrolyte movement? -
ANSWER-
diffusion;
active
transport;
osmosis
, What is diffusion? - ANSWER-the constant movement of
molecules across cell
membranes along a concentration
gradient;
required to maintain homeostasis
What is active transport? - ANSWER-sodium moves out of cell
and potassium
moves in by sodium/potassium pump (energy
dependent)
What is osmosis? - ANSWER-water pulled to area of
higher particle
concentration
What are the osmotically active particles? -
ANSWER-sodium; chloride; urea; glucose
What is tonicity? - ANSWER-the tension that osmotic pressure
exerts on a cell
What is isotonic? - ANSWER-same pressure in and outside the
cell
What is hypertonic? - ANSWER-greater pressure outside the
cell (osmotic pull
to the outside of the cell leads to cell
shrinkage)
EXAM 2026-2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ | BRAND NEW
EXAM | JUST RELEASED!!
What are the causes of acute respiratory failure? - ANSWER-
emphysema;
pneumonia;
asthma;
CNS disorders;
shock neuromuscular
disorders;
trauma
What are the manifestations of acute respiratory failure? -
ANSWER-confusion,
decreased LOC;
tachypnea,
tachycardia;
tremors;
hypotension;
cyanosis, retractions, dysrhythmias,
cool/clammy skin
What are the functions of water in the body? - ANSWER-
nutrient and waste transport in blood; skin structure and
resilience; digestion;
,temperature maintenance- sweat cools down body;
lubrication of joints and membranes;
chemical reactions;
IgA (helps to protect eyes, throat, mouth from infection)
function
What is the total body water composition in adults? -
ANSWER-total = 60% of
body
weight;
2/3 (40%) intracellular- in
the cells;
1/3 (20%)
extracellular
What is the composition of extracellular fluid? -
ANSWER-total = 20%;
14%- interstitial (space between the cells and
blood vessels);
5%-
plasma;
1%-
other
What is the composition of the ECF, plasma, and interstitial
fluids? - ANSWER-
large amounts of sodium and
chloride;
,moderate amounts of
bicarbonate;
small quantities of potassium, magnesium, calcium,
and phosphorus
What is the composition of the ICF? - ANSWER-almost no
calcium; small amounts of sodium, chloride, bicarbonate,
and phosphorus;
moderate amounts of magnesium;
large amounts of potassium- sodium-potassium pump pushes
potassium into the cell while pumping sodium out of the cell
What is the total body water composition of infants, adults,
and elderly? -
ANSWER-infants =
75%;
adults =
60%;
elderly =
50%
What are the mechanisms controlling fluid and
electrolyte movement? -
ANSWER-
diffusion;
active
transport;
osmosis
, What is diffusion? - ANSWER-the constant movement of
molecules across cell
membranes along a concentration
gradient;
required to maintain homeostasis
What is active transport? - ANSWER-sodium moves out of cell
and potassium
moves in by sodium/potassium pump (energy
dependent)
What is osmosis? - ANSWER-water pulled to area of
higher particle
concentration
What are the osmotically active particles? -
ANSWER-sodium; chloride; urea; glucose
What is tonicity? - ANSWER-the tension that osmotic pressure
exerts on a cell
What is isotonic? - ANSWER-same pressure in and outside the
cell
What is hypertonic? - ANSWER-greater pressure outside the
cell (osmotic pull
to the outside of the cell leads to cell
shrinkage)
