Our Labor and Delivery department is requesting nitroglycerin injection to use for uterine relaxation in the setting of obstetric emergencies like uterine inversion.

I am hesitant to stock the 50 mg/250 ml (200 mcg/ml) NTG bottle. The obstetric IV push dose is only around 50 mcg/0.25 ml, which is 0.1% of the 250-ml bottle. Errors involving mg vs. mcg mix-ups or decimal place errors are certainly possible, especially considering the infrequent use of this medication.

What are other hospitals doing?