nil per os


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nil per os

(nil per os)
[L.] Latin for nothing by mouth; instruction often included in dietary orders for patients scheduled for surgery.
References in periodicals archive ?
The patient was admitted in pediatric intensive care unit (PICU) with vital monitoring, nil per os (NPO) and advised with injection dexamethasone 0.
4) Maternal nutritional deficiencies can occur if the patient is kept nil per os (NPO) for a prolonged period.
Babies were kept nil per os (NPO) for the first 24 h and given an intravenous infusion of 10% dextrose water with electrolytes, starting at 80 mL/kg/ day.