NUR240 CH. 13 CONCEPTS OF FLUID &
ELECTROLYTE BALANCE EXAM 2025
QUESTIONS AND ANSWERS
Which patient would the charge nurse assign to a licensed practical nurse/licensed vocational
nurse (LPN/LVN)? - ANS A: 44-year-old with congestive heart failure (CHF) who has gained 3
lb since the previous day
B: 58-year-old with chronic renal failure (CRF) who has a serum potassium level of 6 mEq/L
***C: 76-year-old with poor skin turgor who has a serum osmolarity of 300 mOsm/L
D: 80-year-old with 3+ peripheral edema and crackles throughout the posterior chest
A patient states, "This angiotensin-converting enzyme (ACE) inhibitor medication makes me
urinate all the time. I didn't think it was a water pill." Which response would the nurse make? -
ANS A: "You are probably not taking your medication as prescribed."
B: "This medication is a diuretic. I will print literature for you to review."
***C: "This medication causes greater excretion of water and sodium in your urine."
D: "You must not be following your dietary restrictions. How much sodium are you eating?"
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, Which item will the nurse include when documenting a patient's fluid intake? Select all that
apply. One, some, or all responses may be correct. - ANS A: Emesis
*** B: Enemas
*** C: Oral fluids
D: Solid foods
*** E: Irrigation fluids
Which patient on a medical-surgical unit is at an increased risk for insensible water loss? -
ANS A: A patient receiving humidified oxygen by nasal cannula
*** B: A patient receiving continuous GI suctioning postoperatively
C: A patient with decreased respirations because of opioid administration for pain
D: A patient receiving continuous IV fluids after surgery
Which information would the nurse include when teaching a patient about maintaining fluid
balance? - ANS A: "If you increase your intake of salt, you are at a greater risk for
dehydration."
*** B: "Your intake and output have the most influence on your body's fluid balance."
C: "If you decrease your intake of potassium, you are at greater risk for dehydration."
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D: "Your prescribed medications have the largest impact on fluid balance in the body."
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, Which treatment would the nurse anticipate for a patient admitted to the ICU with a diagnosis
of syndrome of inappropriate antidiuretic hormone secretion (SIADH)? Select all that apply.
One, some, or all responses may be correct. - ANS A: Digitalis
*** B: Furosemide
*** C: Tolvaptan
*** D: Conivaptan
E: Vasopressin
F: Norepinephrine
Which assessment would the nurse perform to evaluate the effectiveness of rehydration
therapy for a patient who was dehydrated? Select all that apply. One, some, or all responses
may be correct. - ANS A: Temperature
*** B: Urinary output
C: Bowel sounds
*** D: Pulse rate and quality
E: Level of consciousness
Which factor affects the amount and distribution of body fluids? Select all that apply. One,
some, or all responses may be correct. - ANS *** A: Age
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B: Poverty
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, C: Activity
*** D: Sex
*** E: Body fat
F: Cognition
Which laboratory test would demonstrate effectiveness of diuretic therapy for a patient
admitted with fluid overload from heart failure? - ANS A: Serum osmolality
B: Serum creatinine
*** C: Natriuretic peptide
D: Serum magnesium
Which hormone regulates sodium balance? Select all that apply. One, some, or all responses
may be correct. - ANS A: Cortisol
*** B: Aldosterone
C: Angiotensin
*** D: Natriuretic peptide (NP)
*** E: Antidiuretic hormone (ADH)
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ELECTROLYTE BALANCE EXAM 2025
QUESTIONS AND ANSWERS
Which patient would the charge nurse assign to a licensed practical nurse/licensed vocational
nurse (LPN/LVN)? - ANS A: 44-year-old with congestive heart failure (CHF) who has gained 3
lb since the previous day
B: 58-year-old with chronic renal failure (CRF) who has a serum potassium level of 6 mEq/L
***C: 76-year-old with poor skin turgor who has a serum osmolarity of 300 mOsm/L
D: 80-year-old with 3+ peripheral edema and crackles throughout the posterior chest
A patient states, "This angiotensin-converting enzyme (ACE) inhibitor medication makes me
urinate all the time. I didn't think it was a water pill." Which response would the nurse make? -
ANS A: "You are probably not taking your medication as prescribed."
B: "This medication is a diuretic. I will print literature for you to review."
***C: "This medication causes greater excretion of water and sodium in your urine."
D: "You must not be following your dietary restrictions. How much sodium are you eating?"
1
Page
@COPYRIGHT FYNDLAY 2025/2026
, Which item will the nurse include when documenting a patient's fluid intake? Select all that
apply. One, some, or all responses may be correct. - ANS A: Emesis
*** B: Enemas
*** C: Oral fluids
D: Solid foods
*** E: Irrigation fluids
Which patient on a medical-surgical unit is at an increased risk for insensible water loss? -
ANS A: A patient receiving humidified oxygen by nasal cannula
*** B: A patient receiving continuous GI suctioning postoperatively
C: A patient with decreased respirations because of opioid administration for pain
D: A patient receiving continuous IV fluids after surgery
Which information would the nurse include when teaching a patient about maintaining fluid
balance? - ANS A: "If you increase your intake of salt, you are at a greater risk for
dehydration."
*** B: "Your intake and output have the most influence on your body's fluid balance."
C: "If you decrease your intake of potassium, you are at greater risk for dehydration."
2
D: "Your prescribed medications have the largest impact on fluid balance in the body."
Page
@COPYRIGHT FYNDLAY 2025/2026
, Which treatment would the nurse anticipate for a patient admitted to the ICU with a diagnosis
of syndrome of inappropriate antidiuretic hormone secretion (SIADH)? Select all that apply.
One, some, or all responses may be correct. - ANS A: Digitalis
*** B: Furosemide
*** C: Tolvaptan
*** D: Conivaptan
E: Vasopressin
F: Norepinephrine
Which assessment would the nurse perform to evaluate the effectiveness of rehydration
therapy for a patient who was dehydrated? Select all that apply. One, some, or all responses
may be correct. - ANS A: Temperature
*** B: Urinary output
C: Bowel sounds
*** D: Pulse rate and quality
E: Level of consciousness
Which factor affects the amount and distribution of body fluids? Select all that apply. One,
some, or all responses may be correct. - ANS *** A: Age
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B: Poverty
@COPYRIGHT FYNDLAY 2025/2026
, C: Activity
*** D: Sex
*** E: Body fat
F: Cognition
Which laboratory test would demonstrate effectiveness of diuretic therapy for a patient
admitted with fluid overload from heart failure? - ANS A: Serum osmolality
B: Serum creatinine
*** C: Natriuretic peptide
D: Serum magnesium
Which hormone regulates sodium balance? Select all that apply. One, some, or all responses
may be correct. - ANS A: Cortisol
*** B: Aldosterone
C: Angiotensin
*** D: Natriuretic peptide (NP)
*** E: Antidiuretic hormone (ADH)
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@COPYRIGHT FYNDLAY 2025/2026
