01
True or false
1 point
True or false: Magnesium deficiency can make hypokalemia difficult to correct until the magnesium deficiency is addressed.
Free Practice Quiz Question List
4 Calcium and Magnesium Imbalances Online Quiz Questions
Use this free practice quiz with 20 questions to review 4 Calcium and Magnesium Imbalances, test your knowledge, and prepare for your next test or exam.
20 questions
02
Choose one
1 point
A patient has a low total calcium, low albumin, and a normal ionized calcium. Which interpretation is most appropriate?
- A
The low total calcium proves that the patient has low ionized calcium.
- B
Low albumin may account for the low total calcium; interpret the result alongside ionized calcium and the clinical picture.
- C
The normal ionized calcium should be disregarded because total calcium is always more informative.
- D
The results establish magnesium toxicity.
03
Fill in the blank
1 point
Severe hypercalcemia can the QTc interval.
04
Written response
1 point
A patient takes calcium and asks which thyroid hormone replacement medicine's absorption may be affected. Enter the medicine name.
05
Choose one
1 point
A patient has severe hypocalcemia. Which ECG finding is associated with this imbalance?
- A
Prolonged QTc interval
- B
Shortened QTc interval
- C
Widened QRS as the characteristic finding
- D
Shortened PR interval as the characteristic finding
06
True or false
1 point
True or false: Renal impairment increases the risk of magnesium accumulation during magnesium replacement.
- A
True
- B
False
07
Choose all
1 point
A patient with impaired kidney function uses a magnesium-containing product. Which findings are consistent with increasing magnesium toxicity? Select all that apply.
- A
Diminished deep-tendon reflexes
- B
Hyperreflexia
- C
Low blood pressure
- D
Respiratory depression
- E
Carpopedal spasm
08
Fill in the blank
1 point
Hypomagnesemia can prolong the QT interval and increase the risk of .
09
Choose one
1 point
A patient with hypocalcemia develops laryngospasm. What is the priority nursing response?
- A
Document the finding and reassess at the next routine check.
- B
Encourage the patient to walk to relieve the muscle spasm.
- C
Assess airway and breathing and escalate promptly.
- D
Give an unprescribed dose of oral calcium before notifying the clinician.
10
Written response
1 point
Magnesium can interfere with absorption of which oral medication class? Enter the class.
11
Choose all
1 point
A patient with kidney impairment who uses a magnesium-containing laxative becomes weak and hypotensive with diminished reflexes. Which actions should the nurse take? Select all that apply.
- A
Assess respiratory effort and vital signs.
- B
Assess reflexes, urine output, level of consciousness, and cardiac rhythm.
- C
Administer more magnesium to correct the weakness.
- D
Notify the responsible clinician urgently and hold further magnesium-containing products as directed.
12
Open ended
1 point
A patient with low calcium reports tingling around the mouth and develops carpopedal spasm. What is the priority concern, and what response and treatment might be appropriate?
13
Choose one
1 point
Which ECG pattern may occur with substantial hypermagnesemia?
- A
Shortened PR interval, narrowed QRS, and decreased T-wave amplitude
- B
Lengthened PR interval, widened QRS, and increased T-wave amplitude
- C
Shortened QTc interval with no other possible changes
- D
Prolonged ST interval as the characteristic pattern
14
Choose one
1 point
A patient has a low total calcium result and low albumin, but the clinical picture is unclear. Which action would best help clarify the patient's calcium status?
- A
Treat the low total calcium as proof that ionized calcium is low.
- B
Check ionized calcium when the result or symptoms are unclear.
- C
Disregard the result because albumin is low.
- D
Give IV calcium without further assessment.
15
True or false
1 point
True or false: Renal impairment increases the risk of magnesium accumulation during prescribed magnesium replacement, so replacement requires caution and close monitoring.
- A
True
- B
False
16
Choose one
1 point
A patient with low calcium develops tingling around the mouth and carpopedal spasm. What is the priority concern and response?
- A
Escalate promptly because of possible progression to airway compromise or seizure.
- B
Encourage the patient to walk to relieve the spasm.
- C
Wait until the next routine laboratory draw before reporting the change.
- D
Assume the symptoms are unrelated to the low calcium.
17
Choose one
1 point
A patient's potassium remains low despite replacement, and the magnesium level is also low. Why is the magnesium result clinically important?
- A
Magnesium is unrelated to potassium balance, so it can be ignored.
- B
The persistent low potassium proves that replacement should be stopped.
- C
Low magnesium can contribute to hypokalemia and make it difficult to correct.
- D
The magnesium result matters only if the patient has muscle cramps.
18
Choose one
1 point
A patient takes a calcium supplement and levothyroxine. What is the safest nursing action regarding their possible interaction?
- A
Stop the levothyroxine until the calcium supplement is discontinued.
- B
Check product instructions and consult a pharmacist or prescriber about spacing.
- C
Double the levothyroxine dose to compensate for possible reduced absorption.
- D
Advise the patient to take both products together to simplify the schedule.
19
Written response
1 point
With substantial magnesium elevation, which ECG interval may lengthen?
20
Written response
1 point
Besides some antibiotics, what medication class can have its absorption interfered with by magnesium?
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