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Free Practice Quiz Question List

3 Electrolyte Interpretation and Priorities Online Quiz Questions

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

20 questions
01
Choose one
1 point

A patient has a markedly elevated potassium result from a hemolyzed sample and is clinically unstable. What is the best immediate priority?

  1. A

    Promptly assess and escalate the concerning findings; consider repeat testing for the unexpected result without delaying urgent care.

  2. B

    Assume the potassium result is false because hemolysis is possible and wait for a repeat before assessing the patient.

  3. C

    Withhold all cardiac monitoring until a nonhemolyzed sample confirms the result.

  4. D

    Administer potassium-lowering treatment independently before reporting the result.

02
Choose one
1 point

A patient with hyponatremia develops new confusion. Which action best reflects the immediate priority?

  1. A

    Encourage unrestricted water intake and reassess neurologic status at the next routine check.

  2. B

    Promptly report and escalate the neurologic change, assess neurologic status, and use seizure precautions when indicated.

  3. C

    Independently increase sodium replacement to correct the result as quickly as possible.

  4. D

    Wait for a repeat sodium result before reporting the new symptom.

03
Choose one
1 point

A patient has an abnormal total calcium result, abnormal albumin, and symptoms that do not fit the laboratory value. How should the result be interpreted?

  1. A

    Treat the total calcium value as definitive and disregard the patient’s symptoms.

  2. B

    Repeat the total calcium until it falls within range before considering other information.

  3. C

    Interpret total calcium with albumin and consider ionized calcium if protein levels are abnormal or symptoms do not match the result.

  4. D

    Assume any confusion is caused by calcium and independently begin fluid treatment.

04
Choose all
1 point

A patient with low magnesium has tremors and a rhythm change. Which actions are appropriate? Select all that apply.

  1. A

    Report neuromuscular symptoms or rhythm changes.

  2. B

    Independently administer magnesium replacement without an order.

  3. C

    Monitor related electrolytes, including potassium and calcium.

  4. D

    Give replacement only as ordered.

05
Choose all
1 point

A patient with kidney dysfunction has high phosphate and reports tingling and muscle cramps. Which responses are appropriate? Select all that apply.

  1. A

    Assess for symptoms of hypocalcemia, such as tingling or cramps.

  2. B

    Review kidney function.

  3. C

    Assume that a phosphate result with few direct symptoms needs no further assessment.

  4. D

    Report symptomatic hypocalcemia or a marked abnormality.

06
True or false
1 point

True or false: Potassium must never be administered by IV push.

  1. A

    True

  2. B

    False

07
True or false
1 point

True or false: If a potassium sample may be hemolyzed, urgent assessment and escalation can be postponed until a repeat result is available.

  1. A

    True

  2. B

    False

08
Written response
1 point

A patient with impaired kidney function who uses a magnesium-containing medicine develops diminished reflexes and slow breathing. Which electrolyte disorder is the primary concern? Enter the disorder name.

09
Written response
1 point

Below what approximate phosphate value, in mg/dL, does the material define hypophosphatemia?

10
Fill in the blank
1 point

Hypernatremia usually reflects too little body water relative to .

11
Fill in the blank
1 point

An ECG change that can occur with hypokalemia is a prominent .

12
Open ended
1 point

Explain how a clinician should prioritize an abnormal electrolyte result rather than treating the laboratory value in isolation. Include relevant patient context and how concerning findings should be handled.

13
True or false
1 point

True or false: The approximate adult electrolyte ranges should be interpreted using the laboratory’s reference range and the patient’s baseline.

  1. A

    True

  2. B

    False

14
Written response
1 point

A phosphate result is 2.4 mg/dL. What is the approximate lower boundary of the adult reference range, in mg/dL, that this result falls below?

15
Written response
1 point

An ECG is being reviewed for a patient with hypokalemia. Name one ECG change associated with this abnormality.

16
Choose one
1 point

A patient has a low total calcium result and an abnormal albumin level, but the symptoms do not clearly match the result. Which interpretation is most appropriate?

  1. A

    Treat the total calcium result as definitive because albumin does not affect its interpretation.

  2. B

    Interpret the total calcium with the albumin result and consider ionized calcium because protein levels are abnormal.

  3. C

    Ignore the calcium result unless the patient has a seizure.

  4. D

    Replace calcium immediately without reviewing the patient’s symptoms or other results.

17
Choose one
1 point

A patient with a low sodium result develops new confusion. Which response best reflects the immediate priorities?

  1. A

    Wait for the next routine laboratory draw because the sodium result is only moderately low.

  2. B

    Encourage unrestricted water intake and reassess tomorrow.

  3. C

    Assess neurologic status and fluid balance, promptly report the new confusion, and use seizure precautions when indicated.

  4. D

    Independently start sodium replacement to correct the result quickly.

18
Choose one
1 point

A patient has hypernatremia. Which approach to fluid replacement is most appropriate?

  1. A

    Give a large volume of fluid rapidly to normalize sodium as soon as possible.

  2. B

    Use a clinician-directed, monitored fluid plan based on volume status and the duration of the abnormality.

  3. C

    Restrict all fluids until the sodium result returns to the reference range.

  4. D

    Choose the replacement fluid based only on the sodium value, without assessing volume status.

19
Choose one
1 point

A patient with kidney dysfunction has a markedly elevated phosphate result but few direct symptoms. Which assessment is especially relevant?

  1. A

    Assess for associated hypocalcemia and review kidney function.

  2. B

    Assume the phosphate result is harmless if it has few direct symptoms.

  3. C

    Treat the phosphate result without considering its cause or the patient’s calcium level.

  4. D

    Focus only on thirst, because it is the defining symptom of hyperphosphatemia.

20
Choose one
1 point

A patient with an elevated magnesium result develops slow, difficult breathing and reduced consciousness. What is the priority response?

  1. A

    Recheck reflexes at the next scheduled assessment and take no further action.

  2. B

    Encourage the patient to walk to improve alertness.

  3. C

    Wait for a repeat magnesium result before responding to the breathing change.

  4. D

    Escalate immediately and provide supportive care according to protocol.