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Free Practice Quiz Question List

6 Electrolyte Imbalance Practice Questions Online Quiz Questions

Use this free practice quiz with 20 questions to review 6 Electrolyte Imbalance, test your knowledge, and prepare for your next test or exam.

20 questions
01
Fill in the blank
1 point

A patient taking a loop diuretic reports muscle weakness. The ECG shows flattened T waves and prominent U waves, findings consistent with .

02
True or false
1 point

True or false: Sodium imbalances have a single characteristic ECG pattern that identifies them.

  1. A

    True

  2. B

    False

03
Choose one
1 point

A patient with marked hypercalcemia develops new confusion. Which ECG change is most consistent with severe hypercalcemia?

  1. A

    Shortened QT interval

  2. B

    Prominent U waves

  3. C

    Prolonged QT interval as the defining pattern

  4. D

    Peaked T waves with progressive QRS widening

04
Written response
1 point

A patient taking a loop diuretic has weakness, flattened T waves, and prominent U waves. Which electrolyte imbalance is most likely?

05
True or false
1 point

True or false: After nutrition support begins in a malnourished patient, severe generalized weakness and difficulty breathing may signal hypophosphatemia.

  1. A

    True

  2. B

    False

06
Fill in the blank
1 point

A patient with advanced kidney disease has high phosphate and develops tingling and muscle spasms. The symptoms may be caused by accompanying .

07
Choose one
1 point

A patient with a serum sodium of 117 mEq/L becomes confused and has a generalized seizure. What is the priority nursing response?

  1. A

    Protect the airway, initiate seizure precautions, and urgently notify the provider or rapid-response team.

  2. B

    Encourage oral water to prevent dehydration.

  3. C

    Administer a potassium supplement.

  4. D

    Begin unrestricted hypotonic IV fluids.

08
Choose one
1 point

A patient with kidney impairment has a potassium of 6.8 mEq/L, tall peaked T waves, and a widening QRS complex. What is the priority?

  1. A

    Place or maintain the patient on continuous cardiac monitoring and urgently escalate for emergency treatment.

  2. B

    Offer a high-potassium snack.

  3. C

    Wait for muscle weakness before acting.

  4. D

    Give an oral phosphate binder.

09
Written response
1 point

A patient has constipation, polyuria, weakness, and confusion. Which electrolyte imbalance is associated with a shortened QT interval?

10
Open ended
1 point

After neck surgery, a patient reports tingling around the mouth, develops hand spasms, and has a prolonged QT interval. Identify the likely imbalance and describe the nursing priorities.

11
Choose all
1 point

An older adult with limited access to water has a sodium of 158 mEq/L, intense thirst, agitation, and dry mucous membranes. Select all appropriate elements of the plan.

  1. A

    Replace free water as prescribed and assess volume and neurologic status.

  2. B

    Monitor sodium and other electrolytes closely during correction.

  3. C

    Restrict all fluids until the sodium normalizes.

  4. D

    Give a rapid large volume of hypotonic fluid without reassessment.

12
Choose one
1 point

Which patient should the nurse assess first?

  1. A

    A patient with potassium 6.7 mEq/L and a widening QRS complex.

  2. B

    A patient with sodium 130 mEq/L who is alert and has no new symptoms.

  3. C

    A patient with phosphate 4.8 mg/dL and no symptoms.

  4. D

    A patient with mild constipation and a slightly elevated calcium level.

13
Choose one
1 point

A patient with marked hypercalcemia has weakness and confusion. Which ECG change is most consistent with this imbalance?

  1. A

    Shortened QT interval

  2. B

    Prominent U waves

  3. C

    Prolonged QT interval

  4. D

    Peaked T waves with progressive QRS widening

14
True or false
1 point

True or false: Severe hypercalcemia is associated with a shortened QT interval.

  1. A

    True

  2. B

    False

15
Written response
1 point

A malnourished patient develops marked weakness and difficulty breathing soon after nutrition support begins. Which electrolyte should the nurse promptly assess?

16
Choose one
1 point

A patient taking a loop diuretic reports muscle weakness, and the ECG shows flattened T waves with prominent U waves. Which response is safest?

  1. A

    Review the potassium result and renal status, notify the provider, and give prescribed replacement safely.

  2. B

    Administer potassium by IV push to correct the ECG changes quickly.

  3. C

    Stop cardiac monitoring because U waves are harmless.

  4. D

    Give a potassium-lowering medication.

17
Written response
1 point

What serious complication can result from correcting severe hyponatremia too rapidly?

18
Choose one
1 point

An older adult with limited access to water has a sodium of 158 mEq/L, intense thirst, agitation, and dry mucous membranes. Which plan is most appropriate?

  1. A

    Replace free water as prescribed, assess volume and neurologic status, and monitor sodium and other electrolytes closely.

  2. B

    Restrict all fluids until the sodium normalizes.

  3. C

    Give a rapid large volume of hypotonic fluid without reassessment.

  4. D

    Treat the sodium result as an ECG emergency.

19
Choose one
1 point

After neck surgery, a patient reports tingling around the mouth and develops hand spasms. The ECG shows a prolonged QT interval. Which interpretation and response are most appropriate?

  1. A

    Hypocalcemia; assess airway and severity, promptly notify the provider, and prepare to give prescribed calcium.

  2. B

    Hypercalcemia; encourage ambulation and delay reassessment.

  3. C

    Hyperkalemia; administer insulin with glucose.

  4. D

    Hyperphosphatemia; give potassium replacement.

20
Choose all
1 point

A patient with prolonged vomiting has tremors, brisk reflexes, an irregular rhythm, low magnesium, and low potassium. Select all appropriate nursing actions.

  1. A

    Notify the provider and monitor the cardiac rhythm.

  2. B

    Anticipate prescribed magnesium replacement and reassess potassium.

  3. C

    Check renal function and follow the prescribed replacement plan.

  4. D

    Treat only the potassium and ignore the low magnesium.

  5. E

    Give a magnesium-containing antacid without checking orders or renal function.