Health Abbreviations & Acronyms

Acronyms abound in our health world. Here you'll find many common health acronyms and what they abbreviate. Use the search box for quick health abbreviation lookup!

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• N.T.E. - not to exceed
• Na - sodium
• NAD - no active disease
• Neg - negative
• ng - nanogram
• NICU - neonatal intensive care unit
• NIDDM - non-insulin dependent diabetes mellitus
• NIH - National Institutes of Health
• NKA - no known allergies
• NKDA - no known drug allergies
• NOS - not otherwise specified
• NP - nurse practitioner
• NPO - nothing by mouth
• NS - normal saline
• NSAID - non-steroidal anti-inflammatory drug
• NSR - normal sinus rhythm
• NST - non-stress test (see cardiotocograph)
• NTD - neural tube defect
• NTG - nitroglycerin