Hanging a Mag Bolus?

Specialties Ob/Gyn

Published

when you are hanging a bag of mag sulfate, when giving the bolus, do you have pre mixed bags of 4 grams, 6 granms, etc.? or do you have a larger bag that contains 20g or 30g and then set the pump to deliver the correct bolus amount? or do you mix your own bags? i think the safest way would be to have smaller dosage bags premixed in pharmacy. how do your l&d units do this? thanks!

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We use premixed bags of 4mg and 2mg. 4mg for the initial bolus and 2mg for the drip. Our pumps are also preset for these bags and we have to ask a 2nd nurse to verify settings and dosages before we start the bolus/drip. Hope this helps! :nurse:

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Specializes in Cardiac/Progressive Care.

We get premixed bags, 1 gm each. They are always hung over one hour, and we just need a second RN to double check the MAR and order before we hang it.

(ETA: I'm cardiac though, not L&D...)

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We mix our own in the ED in the quantity that will be used.

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We use 40gm in 1000cc h20. It equals 1gm per 25cc 's. Then it depends if a 4 or 6gm bolus was ordered

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Specializes in Cardiac Telemetry, Emergency, SAFE.

We do 2gm bags over about 1/2 hour. Bags are premixed and pumps are electronically set.

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Specializes in ICU, Home Health, Camp, Travel, L&D.

Pharmacy mixed 4 or 6 gram minibag over 20-30 min. Also, for maint we use 20GM in 500cc to keep overall fluid volumes low.

Pump/Premix must be verified by 2 RNs at initiation, shift report, and when maint is hung.

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Specializes in OB-Gyn/Primary Care/Ambulatory Leadership.

We give the bolus and the maintenance dose from the same bag, so we get a 500ml bag up from pharmacy that has (I want to say?) 20gm in it.

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we have premixed bags with 20grams MgSO4 in 500cc D5W. We run the pump to deliver either 4 or 6 grams bolus over 30 mins, then continuous dose of 2grams/hr (25cc/hr) for pre-E. We also have to have another RN verify our pump settings and bag dose before starting infusion. The rates differ depending on the indication for tx (neuroprotection, PTL, pre-E) .

I'm curious what other hospital's protocols for BPs, DTRs, UOP, and fetal/uterine assessments are while receiving Mag...?? Thanks!!

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Specializes in OB-Gyn/Primary Care/Ambulatory Leadership.
I'm curious what other hospital's protocols for BPs, DTRs, UOP, and fetal/uterine assessments are while receiving Mag...?? Thanks!!

For us it's q1h

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our pharmacy will eventually send up the premixed bolus bag...but usually the other bag comes first and if we are in a hurry we will use the 1000ml bag to bolus and then adjust the rate...it all goes on a pump and for the 15min. bolus the nurse stays at the bedside anyway. after that, we go to q1hr vitals and mag checks with reflexes, symptoms etc... until they are considered 'stable', typically delivered and after recovery, and then sometimes we can go to q2hrs. fetal assessments are q15min for labor patients or q1hr for non-labor patients.

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Specializes in Antepartum, L&D, Postpartum.
We use 40gm in 1000cc h20. It equals 1gm per 25cc 's. Then it depends if a 4 or 6gm bolus was ordered

we do the same

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