Applies to any infection acquired by a patient while under medical care that was not present or incubating at the time the patient was admitted

Also known as hospital-associated pneumonia (HAP); any case of pneumonia that starts at least 48 hours after admission into an acute healthcare facility.

Nocturnal Oxygen Therapy Trial

A stimulus that is damaging or threatens damage to normal tissues.

Nothing by mouth

Noninvasive positive pressure ventilation

Nonsteroidal anti-inflammatory drugs

Food or any substance that nourishes the body – protein, carbohydrate, fat, vitamins, minerals, and water.

A comprehensive evaluation of factors that influence or reflect nutrition status; its tools include histories, physical examinations, anthropometric measures, and biochemical analysis.

Considered more resistant to inactivation than lipid viruses. Also called non-enveloped or hydrophilic viruses.