ATI Fluid and Electrolytes – Practice Questions, Acid-Base Targeted Exam, and Verified Answers Page 1 2026-04-01
ATI Fluid and Electrolytes –
Practice Questions,
Acid-Base Targeted Exam,
and Verified Answers
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Page 2 2026-04-01
Terms in this set (67)
A nurse is reviewing the laboratory results of a client A.) 25 mg/dL
who is dehydrated. Which of the following BUN lab
values should the nurse report to the provider? Rationale: The expected reference range for BUN values is 10 to 20
A.) 25 mg/dL mg/dL. If the BUN is above this range, the kidneys might be having
B.) 13 mg/dL difficulty excreting urea & nitrogen. Elevation can be seen in dehydration
C.) 10 mg/dL & might require the use of intravenous fluids
D.) 18 mg/dL
A nurse is caring for a client who has a B.) Decreased potassium level
postoperative ileus and an NG tube that has drained
2, 500 mL in the past 6 hr. Which of the following Rationale: Hypokalemia is an electrolyte imbalance in which the serum
electrolyte imbalances should the nurse monitor the potassium level is less than 3.5 mEq/L. Hypokalemia may be the result of
client for? diuretic use, diarrhea, vomiting, & prolonged nasogastric suctioning.
A.) Elevated sodium level
B.) Decreased potassium level
C.) Elevated magnesium level
D.) Decreased calcium level
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Page 3 2026-04-01
A nurse is caring for a client who has a prescription C.) Call the prescribing physician & inform her of the client's serum
of potassium chloride (KCL) 20 mEq PO daily. The potassium level results
nurse reviews the client's most recent laboratory
results & finds the client's potassium level is 5.2 Rationale: As a potassium level of 5.2 mEq/L is above the expected
mEq/L. Which of the following actions should the reference range, the nurse should hold the medication & notify the
nurse take? provider of the client's serum potassium level.
A.) Give the ordered KCL as prescribed
B.) Omit the KCL dose & document it was not given
C.) Call the prescribing physician & inform her of the
client's serum potassium level results
D.) Call the lab to verify the client's results
3 of 40 ATI - Fluid
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Page 4 2026-04-01
A nurse is caring for four hospitalized clients. Which D.) The client who has gastroenteritis and is febrile.
of the following clients should the nurse identify as
being at risk for fluid volume deficit? Rationale: Gastroenteritis is characterized by diarrhea & may be
A.) The client who has been NPO since midnight for associated with vomiting, so it can be a significant source of fluid loss. A
endoscopy fever raises the metabolic rate, further putting the client at increased risk
B.) The client who has left-sided heart failure and for dehydration.
has a brain natriuretic peptide (BNP) level of 600
pg/mL
C.) The client who has end-stage renal failure and is
scheduled for dialysis today
D.) The client who has gastroenteritis and is febrile
A nurse is caring for a client who has heart failure C.) Potassium
and a new prescription for furosemide. Which of the
following laboratory values should the nurse review Rationale: Furosemide is a loop diuretic & therefore promotes excretion of
before administering furosemide? potassium. The nurse should monitor the client's serum potassium level
A.) Bicarbonate before administering it to prevent hypokalemia
B.) Carbon dioxide
C.) Potassium
D.) Phosphate
4 of 40 ATI - Fluid
4 and Electrolytes Practice Questions, ATI Fluid, Electrolyte, and Acid-Base Targeted Exam, ATI Fluid and Electrolytes Questions.pdf
ATI Fluid and Electrolytes –
Practice Questions,
Acid-Base Targeted Exam,
and Verified Answers
1 of 40 Guidehttps://www.stuvia.com/dashboard!@_)#*)(@$)($@*($@)($@*_ 1 ATI Fluid and Electrolytes – Practice Questions, Acid-Base Targeted Exam, and Verified Answers.pdf
,ATI - Fluid and Electrolytes Practice Questions, ATI Fluid, Electrolyte, and Acid-Base Targeted Exam, ATI Fluid and Electrolytes Questions
Page 2 2026-04-01
Terms in this set (67)
A nurse is reviewing the laboratory results of a client A.) 25 mg/dL
who is dehydrated. Which of the following BUN lab
values should the nurse report to the provider? Rationale: The expected reference range for BUN values is 10 to 20
A.) 25 mg/dL mg/dL. If the BUN is above this range, the kidneys might be having
B.) 13 mg/dL difficulty excreting urea & nitrogen. Elevation can be seen in dehydration
C.) 10 mg/dL & might require the use of intravenous fluids
D.) 18 mg/dL
A nurse is caring for a client who has a B.) Decreased potassium level
postoperative ileus and an NG tube that has drained
2, 500 mL in the past 6 hr. Which of the following Rationale: Hypokalemia is an electrolyte imbalance in which the serum
electrolyte imbalances should the nurse monitor the potassium level is less than 3.5 mEq/L. Hypokalemia may be the result of
client for? diuretic use, diarrhea, vomiting, & prolonged nasogastric suctioning.
A.) Elevated sodium level
B.) Decreased potassium level
C.) Elevated magnesium level
D.) Decreased calcium level
2 of 40 ATI - Fluid
2 and Electrolytes Practice Questions, ATI Fluid, Electrolyte, and Acid-Base Targeted Exam, ATI Fluid and Electrolytes Questions.pdf
,ATI - Fluid and Electrolytes Practice Questions, ATI Fluid, Electrolyte, and Acid-Base Targeted Exam, ATI Fluid and Electrolytes Questions
Page 3 2026-04-01
A nurse is caring for a client who has a prescription C.) Call the prescribing physician & inform her of the client's serum
of potassium chloride (KCL) 20 mEq PO daily. The potassium level results
nurse reviews the client's most recent laboratory
results & finds the client's potassium level is 5.2 Rationale: As a potassium level of 5.2 mEq/L is above the expected
mEq/L. Which of the following actions should the reference range, the nurse should hold the medication & notify the
nurse take? provider of the client's serum potassium level.
A.) Give the ordered KCL as prescribed
B.) Omit the KCL dose & document it was not given
C.) Call the prescribing physician & inform her of the
client's serum potassium level results
D.) Call the lab to verify the client's results
3 of 40 ATI - Fluid
3 and Electrolytes Practice Questions, ATI Fluid, Electrolyte, and Acid-Base Targeted Exam, ATI Fluid and Electrolytes Questions.pdf
, ATI - Fluid and Electrolytes Practice Questions, ATI Fluid, Electrolyte, and Acid-Base Targeted Exam, ATI Fluid and Electrolytes Questions
Page 4 2026-04-01
A nurse is caring for four hospitalized clients. Which D.) The client who has gastroenteritis and is febrile.
of the following clients should the nurse identify as
being at risk for fluid volume deficit? Rationale: Gastroenteritis is characterized by diarrhea & may be
A.) The client who has been NPO since midnight for associated with vomiting, so it can be a significant source of fluid loss. A
endoscopy fever raises the metabolic rate, further putting the client at increased risk
B.) The client who has left-sided heart failure and for dehydration.
has a brain natriuretic peptide (BNP) level of 600
pg/mL
C.) The client who has end-stage renal failure and is
scheduled for dialysis today
D.) The client who has gastroenteritis and is febrile
A nurse is caring for a client who has heart failure C.) Potassium
and a new prescription for furosemide. Which of the
following laboratory values should the nurse review Rationale: Furosemide is a loop diuretic & therefore promotes excretion of
before administering furosemide? potassium. The nurse should monitor the client's serum potassium level
A.) Bicarbonate before administering it to prevent hypokalemia
B.) Carbon dioxide
C.) Potassium
D.) Phosphate
4 of 40 ATI - Fluid
4 and Electrolytes Practice Questions, ATI Fluid, Electrolyte, and Acid-Base Targeted Exam, ATI Fluid and Electrolytes Questions.pdf
