Hemostasis, Fluids and Electrolytes

Electrolyte Imbalances Practice Questions

20 free Electrolyte Imbalances practice questions for the NCLEX Exam, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Electrolyte Imbalances questions

20 questions
  1. Q1. What electrolyte imbalance is most likely in a patient with serum sodium 152 mEq/L, dry mucous membranes, and restlessness?
  2. Q2. Which ECG change is most likely in a patient with serum potassium of 6.2 mEq/L?
  3. Q3. Which imbalance is present in a patient with chronic kidney disease with a total serum calcium of 7.8 mg/dL and complaining of numbness and tingling around the…
  4. Q4. A patient receiving IV magnesium sulfate post-pre-eclampsia develops decreased deep tendon reflexes, hypotension, and bradycardia. Which electrolyte imbalance…
  5. Q5. Which of the following is least likely to lead to hypokalemia?
  6. Q6. A patient with sodium of 128 mEq/L, confusion, and a seizure needs immediate nursing action. What is the best action?
  7. Q7. Which lab value falls within the normal range?
  8. Q8. What sign is most indicative of hypomagnesemia?
  9. Q9. A patient with hypercalcemia is at greatest risk for which complication?
  10. Q10. A patient on adrenal insufficiency has hyperkalemia (6.0 mEq/L) with peaked T-waves. Which initial treatment may be given emergently?
  11. Q11. Which electrolyte imbalance may result from prolonged nasogastric suctioning and diarrhea?
  12. Q12. A patient with SIADH presents with sodium 122 mEq/L and normal volume status. What mechanism is most likely at play?
  13. Q13. A patient with serum magnesium 0.9 mg/dL complains of palpitations and muscle weakness. Which electrolyte imbalance should the nurse also assess for?
  14. Q14. What finding is characteristic of hyponatremia?
  15. Q15. A patient with chronic alcoholism has magnesium 3.0 mg/dL, hypotension, bradycardia and lethargy. What condition is this?
  16. Q16. Which electrolyte imbalance is most likely in a patient with pancreatitis due to fat saponification?
  17. Q17. Which clinical feature is most consistent with hypokalemia (3.0 mEq/L)?
  18. Q18. A nurse observes a patient with serum sodium of 160 mEq/L being restless, flushed and dehydrated. What is the most appropriate nursing intervention?
  19. Q19. A patient with primary hyperparathyroidism presents with fatigue, polyuria, and serum calcium 11.4 mg/dL. Which intervention is likely included in the plan?
  20. Q20. Which electrolyte imbalance would you suspect in a patient receiving high-dose cisplatin chemotherapy with persistent vomiting and decreased intake?