N. Surg.
Neurosurgery

n/a
not applicable

n/v
Nausea and Vomiting

Na
Sodium

NAD
No Acute Distress

NB
Newborn

NCA
Nurse Controlled Analgesia

NCPAP
Nasal Continuous Positive Airway Pressure

ND
Nasal Duodenal Tube

NEC
Necrotizing Enterocolitis

Neck, chronic stiff
Also called torticollis or spasmodic torticollis, this is the most common of the focal dystonias: a state of abnormal -- either excessive of inadequate -- muscle tone.

In this disorder, the mu...Full Definition

Neer Test for shoulder impingement
A test to identify impingement of the supraspinatus tendon in the coraco-acromial arch. To do this test the examiner internally rotates the shoulder and then brings the shoulder into flexion. Pain rep...Full Definition

neg
Negative

Neuro
Neurology, Neurologic

ng
Nanogram = 1x10-9 Gram

NG
Nasogastric

NGT
Nasogastric tube

NIFM
Negative Inspiratory Force Maneuver

NKDA
No Known Drug Allergies

nl
Nanoliter = 1 x 10-9 Liter

NLP
No Light Perception (Ophth)

nmol
Nanomole = 1 x 10-9 Mole

Non-Anatomic Tenderness
Tenderness that crosses multiple somatic boundaries. Any pain or tenderness that crosses anatomic lines without a reasonable explanation is considered positive.

NP
Nurse Practitioner

NPC
Near Point of Convergence

NPH
Neutral Protamine Hagedorn (Insulin)

NPO
Nothing by Mouth

NS
Normal Saline

NSAID
Non-steroidal Anti-inflammatory Drug

NSR
Normal Sinus Rhythm

NST
Non-Stress Test

NSU
Neurosurgery Unit

NSVD
Normal Spontaneous Vaginal Delivery

NT
Not Tested

NTG
Nitroglycerin

NTS
Nasotracheal Suction

NWB
Nonweight Bearing