--J--

J-tube

jejunostomy tube

JCAHO

Joint Commission for Accreditation of Healthcare Organizations

JP

Jackson-Pratt (drain)

JRA

juvenile rheumatoid arthritis

JVD

jugular vein distention

--K--

K

[L. kalium]  potassium

KAFO

knee-ankle-foot orthosis

KCAL

kilocalorie

KCl

potassium chloride

KFD

Kinetic Family Drawing

kg

kilogram

kg/m

kilogram per meter

KLS

kidney(s), liver, and spleen

KOH/WP

potassium hydroxide wet preparation

KUB

(x-ray exam of) kidneys, ureter, and bladder

kv

kilovolt

KVO

keep vein open (IV lines)