A nurse is providing education to a client about magnesium oxide. Which of the following statements by the client indicates a correct understanding of magnesium oxide?

I will take magnesium oxide on an empty stomach.

I will take magnesium oxide with my morning coffee.

I will drink a full glass of water with the magnesium oxide.

I will crush the magnesium oxide tablets before taking them.

Answer and Explanation

The Correct Answer is C

Rationale:
A. Taking magnesium oxide on an empty stomach can cause gastrointestinal irritation; it’s best taken with food or water.
B. Coffee can interfere with absorption of some medications and may worsen GI upset; it's not recommended.
C. Drinking a full glass of water helps ensure proper dissolution and absorption of the medication and minimizes GI side effects.
D. Crushing magnesium oxide tablets is not recommended unless specifically directed, as some formulations are meant to be swallowed whole.

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Correct Answer is A

Explanation

Rationale:

A. Request a potassium replacement: The client's potassium level is 3.0 mEq/L, which indicates hypokalemia (normal range: 3.5–5.0 mEq/L). TPN can cause electrolyte shifts, so potassium supplementation is appropriate and should be initiated to prevent complications like arrhythmias and muscle weakness.

B. Administer glucagon IM: This is used to treat severe hypoglycemia. The client’s glucose is 72 mg/dL, which is within the normal range (70–100 mg/dL fasting), so glucagon is not needed.

C. Check the client for a positive Chvostek's sign: Chvostek’s sign is associated with hypocalcemia, not hypokalemia, and calcium levels were not mentioned as abnormal here.

D. Discontinue the TPN infusion: Discontinuing TPN is not appropriate without a critical reason. Electrolyte imbalances are common during TPN therapy and are typically managed by adjusting the TPN formulation rather than stopping it altogether.

A. 7.35 B. 7.45 C. 7.50 D. 7.40

Correct Answer is C

Explanation

Rationale:
A. A pH of 7.35 is at the lower end of the normal range and would not typically produce symptoms like tingling or numbness.
B. A pH of 7.45 is the upper limit of normal and may not fully explain the client's symptoms.
C. A pH of 7.50 indicates alkalosis, most likely respiratory alkalosis in this case due to hyperventilation (RR of 32). The symptoms of numbness and tingling are classic signs of respiratory alkalosis, caused by decreased CO₂ levels.
D. A pH of 7.40 is normal and would not be expected to cause the symptoms described.

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A nurse is providing education to a client about magnesium oxide. Which of the following statements by the client indicates a correct understanding of magnesium oxide?

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Naxlex Comprehensive Predictor Exams

A nurse is reviewing the laboratory values of a client who is receiving total parenteral nutrition (TPN): glucose 72 mg/dL, chloride 100 mEq/L. sodium 138 mEq/L. and potassium 3.0 mEq/L. Which of the following actions should the nurse plan to take?

Correct Answer is A

Explanation

Correct Answer is C

Explanation

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