Home » NCLEX » NCLEX-RN » While she receives magnesium sulfate (MgSO4) therapy, the nurse knows it is safe to repeat the dosage if:
A gravida 2 para 1 client is hospitalized with severe preeclampsia. While she receives magnesium sulfate (MgSO4) therapy, the nurse knows it is safe to repeat the dosage if:
A. Deep tendon reflexes are absent
B. Urine output is 20 mL/hr
C. MgSO4serum levels are>15 mg/dL
D. Respirations are>16 breaths/min
Correct Answer: D
Explanation/Reference:
Explanation:
(A) MgSO4is a central nervous system depressant. Loss of reflexes is often the first sign of developing toxicity. (B) Urinary output at <25 mL/hr or 100 mL in 4 hours may result in the accumulation of toxic levels of magnesium. (C) The therapeutic serum range for MgSO4is 68 mg/dL. Higher levels indicate toxicity. (D) Respirations of>16 breaths/min indicate that toxic levels of magnesium have not been reached. Medication administration would be safe.
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