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Nothing by mouth. Nothing by mouth is an American medical instruction meaning to withhold food and fluids. It is also known as nil per os (npo or NPO), a Latin phrase that translates to English as "nothing through the mouth". Nil by mouth is the term used in the UK (NBM), nihil / non / nulla per os, or complete bowel rest. [1]
Oral administration is a route of administration whereby a substance is taken through the mouth, swallowed, and then processed via the digestive system. This is a common route of administration for many medications. Oral administration can be easier and less painful than other routes of administration, such as injection.
Wikipedia's list of medical abbreviations provides a comprehensive guide to Latin abbreviations used in the medical field.
The patient is kept NPO (nil per os) or NBM (nothing by mouth) for at least 4 hours before the procedure. Most patients tolerate the procedure with only topical anesthesia of the oropharynx using lidocaine spray.
List of abbreviations used in medical prescriptions This is a list of abbreviations used in medical prescriptions, including hospital orders (the patient-directed part of which is referred to as sig codes). This list does not include abbreviations for pharmaceuticals or drug name suffixes such as CD, CR, ER, XT (See Time release technology § List of abbreviations for those).
Mendelson's syndrome, named in 1946 for American obstetrician and cardiologist Curtis Lester Mendelson, is a form of chemical pneumonitis or aspiration pneumonitis caused by aspiration of stomach contents (principally gastric acid) during anaesthesia in childbirth. This complication of anaesthesia led, in part, to the longstanding nil per os ...
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Water?[edit] Does Nil per os (NPO) includes abstaining from drinking water? McAusten ( talk) 01:37, 13 August 2011 (UTC) [ reply] Yes, NPO means NOTHING by mouth, including water. If the patient is on medications that are important, e.g. heart medications, etc., they can usually be administered by the nurse along with a very small amount of water.