Which intervention would be the most effective if your client who is on magnesium sulfate has a respiratory rate of 10 breaths/min?
a. Give oxygen by mask at 8-10 L/min.
b. Administer calcium gluconate via IV pyelogram (IVP).
c. Arouse client with tactile stimulation.
d. Continually assess pulse oximeter levels.
ANS: B
A respiratory rate of less than 12 breaths/min in a client receiving magnesium sulfate is a sign of magnesium toxicity, which must be immediately reversed. Calcium gluconate opposes the effects of magnesium at the neuromuscular junction and is an antidote for magnesium toxicity. Oxygen by mask at 8 to 10 L/min, arousing a client with tactile stimulation, and continually assessing pulse oximeter levels will not be effective until the magnesium toxicity has been reversed.
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