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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]
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. However, some patients may need sedation and the very anxious/agitated patient may even need a general anesthetic.
Impaired consciousness can be intentional, such as the use of general anesthesia for surgery. For many types of surgical operations, people preparing for surgery are therefore instructed to take nothing by mouth (nil per os, abbreviated as NPO) for at least four hours before surgery. These conditions enable the entry of bacteria into the lungs ...
Preoperative fasting. Preoperative fasting is the practice of a surgical patient abstaining from eating or drinking ("nothing by mouth") for some time before having an operation. This is intended to prevent stomach contents from getting into the windpipe and lungs (known as a pulmonary aspiration) while the patient is under general anesthesia. [1]
once per day o.s. oculus sinister: left eye o can be mistaken as an a which could read "a.s.", meaning left ear o.u. oculus uterque: both eyes o can be mistaken as an a which could read "a.u.", meaning both ears oz ounce p. perstetur: continue part. æq. partes æquales: equal parts per: per: by or through p.c. post cibum: after meals p.c.h.s ...
In a review of 26 medical studies, a handheld device using autofluorescence imaging successfully "lit up" bacteria in nine out of 10 wounds. The lighting technology allows clinicians to see ...
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 ...
nil nisi malis terrori: no terror, except to the bad: Motto of The King's School, Macclesfield: nil per os, rarely non per os (n.p.o.) nothing through the mouth: Medical shorthand indicating that oral foods and fluids should be withheld from the patient. nil satis nisi optimum: nothing [is] enough unless [it is] the best