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Abbreviations and Acronyms

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We hope this list helps you navigate our forum. Terms you may come across in posts are in ABC order, grouped by Family, Internet Terms, and Other.


If you're new here, don’t worry—it won’t take you long to catch on. We promise. (And don’t feel you have to use them yourself! <_< )


General note—it doesn’t matter if abbreviations are lower case or capitals, so they're shown as a mix here.



A number may be added for age, such as: dd8

bil - brother in law

dd - dear daughter

dh - dear husband

ds - dear son

dw - dear wife

fil - father in law

mil - mother in law

sil - sister in law (or son in law)

SO - significant other


Internet terms

BTW - by the way

IM - instant message

IMHO - in my humble opinion

IMO - in my opinion

LMK - let me know

ITM - in the meantime

LOL - laugh out loud

LYK - let you know

PM – a private message sent on forum



abx - antibiotics

ad - antidepressant

AED - anti epileptic drug

amox - amoxiccillin

AN - Anorexia Nervosa

AS - Aspergers syndrome

ASO - antistreptolysin O

BID - 2 times a day

BP - bipolar (can also mean blood pressure)

CaMK or CaM - CaM Kinase II

CFS - chronic fatigue syndrome

CR - controlled release medication

DAN - Defeat Autism Now! movement

DAN doctor - practitioner using protocols from the DAN movement

Dr B - Dr Bouboulis

Dr K - Dr. Kovacevic

Dr L - Dr Latimer

Dr T - Dr Triffileti

dx - diagnosis

EBV - Epstein Barr virus

ER - extended release medication

fibro - fibromyalgia

FMS - fibromyalgia

GABHS - Group A Beta-Hemolytic Streptococci throat culture

GAS - group A streptococcus bacterium

gp - general practitioner

GS - gluten sensitivity

h/o - history of

hx - history

IBS - irritable bowel syndrome

IR - immediate release medication

IVIG - intravenous immunoglobulin therapy

MS - multiple sclerosis

Neuro - neurologist

NP - naturopath

OCD - obsessive compulsive disorder

ODD - oppositional defiance disorder

OTC - available over the counter (no prescription needed)

PANDAS - Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infections

PCP - primary care physician

PDD NOS - Pervasive Developmental Disorder - Not Otherwise Specified

pen - penicillin

pen VK - penicillin VK

PEX - plasma exchange therapy

PITAND - Pediatric Infection-triggered Autoimmune Neuropsychiatric Disorders

Pm - pain management (or pain monster, or private message)

PN - peripheral neuropathy

PRN - taken as needed, for medication

pt - patient

PT - physical therapy

q4h - medication to be taken every 4 hours; adjusted for 6, 8, 12 hours etc.

QID - 4 times a day

RF - rheumatic fever

rx prescription

SC - Sydenham chorea; also called St Vitus Dance

SID - sensory integration dysfunction

SR - sustained release

SSRI - selective-serotonin reuptake inhibitor; type of antidepressant drug

TID - 3 times a day

TS - Tourette syndrome

tx - treatment

ULN – upper limits of normal

URI - upper respiratory infection

UTI - urinary tract infection

zith - zithromax antibiotic

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I've seen "sx" for "symptoms" a few times, took me a while to catch on. (I do think these "-x" things are getting a bit silly! smile.gif )

Sx for symptoms, Hx for history, abx for antibioitics and many other acronyms ending in "x" have been used in the medical world for decades in charting. Loong before it became fashionable for town names, texting, advertising etc. Think folks have 'stolen' from the medical world of approved abbreviations used in charting.


Coming from OBX (NC, Outer Banks:) Agree, it does seem to be overkill in many instances.

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