Maternity Nursing: Antepartum Q 39
The antagonist for magnesium sulfate should be readily available to any client receiving IV magnesium. Which of the following drugs is the antidote for magnesium toxicity?
A. Calcium gluconate
B. Hydralazine (Apresoline)
C. Narcan
D. RhoGAM
Correct Answer: A. Calcium gluconate.
Calcium gluconate is the antidote for magnesium toxicity. Ten ml of 10% calcium gluconate is given IV push over 3-5 minutes. Hydralazine is given for sustained elevated blood pressures in preeclamptic clients.
Option B: Hydralazine is used to treat high blood pressure. Hydralazine is in a class of medications called vasodilators. It works by relaxing the blood vessels so that blood can flow more easily through the body.
Option C: Narcan (naloxone) is an opioid antagonist used for the complete or partial reversal of opioid overdose, including respiratory depression. Narcan is also used for diagnosis of suspected or known acute opioid overdose and also for blood pressure support in septic shock. Narcan is available in generic form.
Option D: RhoGAM is a prescription medicine that is used to prevent Rh immunization, a condition in which an individual with Rh-negative blood develops antibodies after exposure to Rh-positive blood.