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Free Practice Quiz Question List

3 Potassium Imbalances Online Quiz Questions

Use this free practice quiz with 20 questions to review 3 Potassium Imbalances, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: IV calcium stabilizes the cardiac membrane during hyperkalemia but does not lower serum potassium.

  1. A

    True

  2. B

    False

02
Written response
1 point

What serum potassium cutoff, in mEq/L, defines hypokalemia?

03
Fill in the blank
1 point

can contribute to potassium loss and make hypokalemia difficult to correct.

04
Choose one
1 point

Which ECG finding is a typical clue to hypokalemia?

  1. A

    Tall, peaked T waves

  2. B

    Widened QRS complexes

  3. C

    Prominent U waves

  4. D

    Sine-wave pattern

05
Choose all
1 point

Which factors can contribute to hyperkalemia? Select all that apply.

  1. A

    Impaired kidney excretion

  2. B

    Diarrhea causing potassium loss

  3. C

    Potassium-retaining medicines

  4. D

    Potassium release from damaged cells

06
Written response
1 point

Which hormone can shift potassium into cells and contribute to hypokalemia?

07
Fill in the blank
1 point

Never administer potassium by .

08
Choose all
1 point

Which findings can occur with hypokalemia? Select all that apply.

  1. A

    Muscle weakness

  2. B

    Muscle cramps

  3. C

    Tall, peaked T waves

  4. D

    Respiratory weakness in severe cases

09
Choose one
1 point

A patient with hypokalemia can take oral medication and does not have a severe deficit. Which replacement route is generally preferred when treatment is prescribed?

  1. A

    Give potassium by IV push for a faster response.

  2. B

    Use prescribed oral potassium replacement when appropriate.

  3. C

    Avoid rechecking potassium after replacement.

  4. D

    Give potassium replacement without considering renal function.

10
Written response
1 point

According to the UK Kidney Association classification, what is the serum potassium cutoff for severe hyperkalemia, in mEq/L?

11
True or false
1 point

True or false: A normal ECG rules out clinically important hyperkalemia.

  1. A

    True

  2. B

    False

12
Choose one
1 point

A stable patient has a high potassium result that does not fit the clinical picture, and sample hemolysis is possible. What is the most appropriate next step?

  1. A

    Assume the result is accurate and wait for symptoms.

  2. B

    Ignore the result because the patient appears well.

  3. C

    Promptly alert the clinician and obtain a repeat sample as directed; do not delay emergency care if the patient is unstable or has concerning ECG changes.

  4. D

    Give a potassium-lowering medication without an order or protocol.

13
Choose one
1 point

A patient receives prescribed insulin with glucose as part of emergency hyperkalemia treatment. Which monitoring priority is especially important after insulin?

  1. A

    Monitor respiratory effort closely because insulin removes potassium through the lungs.

  2. B

    Monitor blood glucose closely after insulin.

  3. C

    Withhold all follow-up potassium checks because insulin permanently removes potassium.

  4. D

    Expect IV calcium to lower the serum potassium.

14
Choose one
1 point

A patient with hypokalemia also has impaired renal function. What is an important safety concern when replacing potassium?

  1. A

    Renal impairment prevents potassium replacement from affecting serum potassium.

  2. B

    Potassium replacement can cause hyperkalemia, so use extra caution in renal impairment.

  3. C

    Renal impairment makes potassium monitoring unnecessary.

  4. D

    Potassium replacement should be given by IV push when renal function is impaired.

15
Open ended
1 point

A patient has severe hyperkalemia with concerning ECG changes. Describe the immediate nursing priorities and explain how prescribed IV calcium and insulin with glucose affect management. Include important follow-up monitoring.

16
Written response
1 point

Severe hypokalemia is often defined as a serum potassium at or below what value?

17
True or false
1 point

A normal ECG rules out clinically important hyperkalemia.

  1. A

    True

  2. B

    False

18
Choose one
1 point

A stable patient has hypokalemia that is not severe and can swallow medications. Which approach to prescribed potassium replacement is generally preferred?

  1. A

    Begin IV potassium replacement because it is the preferred route for any potassium deficit.

  2. B

    Give prescribed oral potassium replacement because the patient can take it and the deficit is not severe.

  3. C

    Withhold replacement until ECG changes appear.

  4. D

    Administer potassium by IV push to correct the level quickly.

19
Choose one
1 point

A patient receiving prescribed potassium replacement has impaired renal function. Which nursing approach best addresses a key treatment risk?

  1. A

    Stop monitoring potassium once replacement begins.

  2. B

    Assume the replacement cannot cause hyperkalemia because the initial level was low.

  3. C

    Use extra caution and monitor potassium and renal function as ordered.

  4. D

    Give additional potassium without reassessing the patient or laboratory results.

20
Choose one
1 point

A patient with hyperkalemia is prescribed insulin with glucose. Which monitoring action is especially important after insulin administration?

  1. A

    Monitor blood glucose closely after insulin administration.

  2. B

    Expect insulin with glucose to remove potassium from the body immediately.

  3. C

    Monitor only urine output because insulin does not affect blood glucose.

  4. D

    Avoid reassessing potassium because intracellular shifting is permanent.