Q3 Pharm Magnesium Sulfate Quiz

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The doctor ordered Magnesium Sulfate 2gm/ hour IV. Magnesium Sulfate come in 40gm/1000mL IV bottle. You would set your pump at _____mL/hour. A.50 mL/hr B.60 mL/hr C.55 mL/hr D.53 mL/hr

50ml/hr

A client is in labor is receiving magnesium sulfate to treat hypertension of pregnancy. How should this drug be administered? A. As a loading dose of 4g in normal saline solution, followed by a continuous infusion of 2-3g/hour B. As a loading doge of 2g in sterile water, followed by a continuous infusion of 2-3g/hour C.As a loading dose of 4g in dextrose 5% solution in water, followed by a continuous infusion of 2-3g/hour D.As a loading dose of 4g in dextrose 5% in water, followed by a continuous infusion of 2-4grams/hour

A loading dose of magnesium sulfate should be given as a 4g bolus over 15 to 30min followed by a continuous infusion of 2-3g/hour in Dextrose 5% in water. Magnesium sulfate shouldn't be administered in normal saline or sterile water.

A nurse is administering magnesium sulfate IV to a client who has severe preeclampsia for seizure prophylaxis. Which of the following indicates magnesium sulfate toxicity? (Select all that apply.) A. Respirations fewer than 11/min B. Urinary output less than 30 mL/hr C. Hyperreflexic deep-tendon reflexes D. Decreased level of consciousness E. Flushing

A. CORRECT: A respiratory rate of less than 12/min is a sign of magnesium sulfate toxicity. B. CORRECT: Urinary output of less than 30 mL/hr is a sign of magnesium sulfate toxicity. C. INCORRECT: The absence of patellar deep-tendon reflexes is a sign of magnesium sulfate toxicity. D. CORRECT: Decreased level of consciousness is a sign of magnesium sulfate toxicity. E. INCORRECT: Flushing is an adverse effect of magnesium sulfate but is not a sign of toxicity.

The most recent blood magnesium sulfate level for your 39 weeks gestation patient comes back as 7 mEq/L. Her Vitals read: T 99, P 78, RR 19 and BP 144/90 and she is complaining of a headache. What is the priority medication to have available? A. Hydralazine B. Calcium Gluconate C. Nalaxone D. RhoGAM

A. Hydralazine is given for sustained elevated blood pressure in preeclamptic clients. B. CORRECT: Calcium gluconate is the antidote for magnesium toxicity. Ten milliliters of 10% calcium gluconate is given I.V. push over 3 to 5 minutes. C. Naloxone is used to correct narcotic toxicity. D. RhoGAM is given to women with Rh-negative blood to prevent antibody formation from Rh-positive conceptions.

Magnesium Sulfate is given to pregnant clients with preeclampsia to prevent which condition? A. Hemorrhage B. Hypertension C. Hypomagnesemia D. Seizures

A. Magnesium doesn't help prevent hemorrhage in preeclamptic clients B. Anti-hypertensive medications other than magnesium are preferred for sustained hypertension. C.Hypomagnesemia isn't a complication of preeclampsia D. CORRECT: Magnesium Sulfate is given to prevent or control eclamptic seizures.

A client who is 38 weeks gestation is receiving a continuous IV infusion of magnesium sulfate for the last two days. Which of the following findings require an action by the nurse? [Select all that apply.] A. Respirations 14/min B. 3+ deep tendon reflexes C. Blood pressure 150/94 mm Hg D. Magnesium lab value of 3 mEq/L E. Urine output of 80 mL in 4 hours

A. Signs of developing magnesium toxicity include respiratory depression. Many protocols require stopping magnesium sulfate if respirations fall below 12/min. B. Hyperactive (3+ or 4+) deep tendon reflexes are a common physical finding of preeclampsia or eclampsia. This finding does not require an action. D. CORRECT: Therapeutic serum magnesium levels should range from 4 to 7 mEq/L. A level less than 4 mEq/L may not be adequate to prevent seizure activity. The nurse should notify the provider of the low serum magnesium level. E. CORRECT: Magnesium is excreted in the urine. A decreased urine output places the client at risk for magnesium toxicity.

After reviewing the client's maternal history of magnesium sulfate during labor, which condition should the nurse anticipate as a potential problem in the neonate? A. Hypoglycemia B. Jitteriness C. Respiratory depression 4. Tachycardia

C. Respiratory Depression.Magnesium Sulfate crosses the placenta, and adverse neonatal effects are respiratory depression, hypotonia, and bradycardia. The serum blood sugar isn't affected by magnesium sulfate. The neonate would be floppy, not jittery.


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