I

I&D – incision and drainage

I&O – intake and output

IABP – intra-aortic balloon pump

IADLs – instrumental activities of daily living

IBD – inflammatory bowel disease, ideal body weight

IBS – irritable bowel syndrome

ICD – implantable cardioverter-defibrillator

ICH – intracerebral hemorrhage

ICP – intracranial pressure

Icterus – yellow skin/eyes (Jaundice)

ICU – intensive care unit

ID – intradermal, infectious disease

IDC – indwelling catheter

Infarction – tissue death due to no blood supply

Infection – invasion of the body by pathogenic organisms

IHC – immunohistochemistry

IHD – ischemic heart disease

IJ – internal jugular

ILI – influenza-like illness

IM – intramuscular

IMN – infectious mononucleosis, intramedullary nail

IN – inch

INC – incontinent

Inflammation – swelling, redness, tissue pain

INR – international normalized ratio

Insomnia – sleeplessness

INT – intermittent needle therapy

Internist – a physician who practices in Internal Medicine

In vitro – in the laboratory

In vivo – in the body

IOC – intraoperative cholangiogram

IP – inpatient

IPD – inpatient department

IPF – idiopathic pulmonary fibrosis

IPPV – intermittent positive pressure ventilation

IPR – intellectual property rights

IQ – intelligence quotient

IR – interventional radiology

IS – incentive spirometer

ISOL – isolation

ITP – immune thrombocytopenic purpura

IU – international units

IUI – intrauterine insemination

IUP- Intrauterine pregnancy

IV – intravenous

IVC – inferior vena cava

IVD – jugular venous distention

IVF – intravenous fluids, in vitro fertilization

IVP – intravenous push

IVAB – intravenous antibiotics

IVPB – intravenous piggyback

IVVD – intravascular volume depletion