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3TC

Lamivudine

AAP

American Academy of Pediatrics

ABC

Airway, breathing, circulation

ABG

Arterial blood gas

ABR

Auditory brainstem response

ACC

American College of Cardiology

ACE

Angiotensin converting enzyme

ACh

Acetylcholine

ACLS

Advanced cardiac life support

ACOG

American College of Obstetrics and Gynecology

ACPA

Anti-citrullinated peptide antibodies

ACTH

Adrenocorticotropic hormone

ADEM

Acute disseminated encephalomyelitis

ADH

Anti-diuretic hormone

ADHD

Attention deficit hyperactivity disorder

AFP

Alpha-fetoprotein

AG

Anion gap

AGA

Appropriate for gestational age

AHA

American Heart Association

AIDP

Acute inflammatory demyelinating polyradiculoneuropathy

AIDS

Acquired immune deficiency syndrome

AIH

Autoimmune hepatitis

AIHA

Autoimmune hemolytic anemia

AIN

Autoimmune neutropenia

AKI

Acute kidney injury

ALCL

Anaplastic large cell lymphoma

ALL

Acute lymphoblastic leukemia

ALP

Alkaline phosphatase

ALT

Alanine aminotransferase

ALTE

Apparent life-threatening event

AML

Acute myeloid leukemia

ANA

Anti-nuclear antibody

ANC

Absolute neutrophil count

ANCA

Anti-neutrophil cytoplasmic antibody

AOM

Acute otitis media

AP

Anterior-posterior

APAP

Acetaminophen

APRV

Airway pressure release ventilation

aPTT

Activated partial thromboplastin time

ARB

Angiotensin Receptor Blockers

ARDS

Acute respiratory distress syndrome

ARFID

Avoidant or restrictive food intake disorder

ARR

Absolute risk reduction

ART

Anti-retroviral treatment

ASA

Aspirin

ASAL

Argininosuccinic acid lyase

ASAS

Argininosuccinic acid synthetase

ASCA

Anti-Saccharomyces cerevisiae antibody

ASD

Atrial Septal Defect

ASO

Anti-streptolysin O

AST

Aspartate aminotransferase

ATN

Acute tubular necrosis

ATP

Adenosine triphosphate

ATV

Atazanavir

AUB

Abnormal uterine bleeding

AV

Atrioventricular

BCG

Bacille-Calmette Guerin

BLL

Blood lead level

BLPAP

Bi-level positive airway pressure

BMI

Body mass index

BMP

Basic metabolic panel

BMT

Bone marrow transplantation

BP

Blood pressure

BPD

Bronchopulmonary dysplasia

BRUE

Brief resolved unexplained event

BSA

Body surface area

BUN

Blood urea nitrogen

BV

Bacterial vaginosis

CA-MRSA

Community-acquired methicillin-resistant Staphylococcus aureus

CAH

Congenital adrenal hyperplasia

CAKUT

Congenital abnormalities of the kidney and urinary tract

CAP

Community-acquired pneumonia

CAR

Chimeric antigen receptor

cART

Combination anti-retroviral treatment

CAVC

Common atrioventricular canal

CBC

Complete blood count

CBD

Common bile duct

CCAM

Congenital Cystic Airway Malformation

CCK

Cholecystokinin

CD

Crohn’s disease

CDC

Centers for Disease Control and Prevention

CDH

Congenital diaphragmatic hernia

CF

Cystic fibrosis

CFU

Colony forming units

CGD

Chronic granulomatous disease

CHD

Congenital heart disease

CHED

Congenital hereditary endothelial dystrophy

CHF

Congestive heart failure

CHSD

Congenital hereditary stromal dystrophy

CIPO

Chronic intestinal pseudo-obstruction

CKD

Chronic kidney disease

CLABSI

Central line-associated bloodstream infection

CML

chronic myeloid leukemia

CMP

Comprehensive metabolic panel

CMV

Cytomegalovirus

CN

Cranial nerve

CNS

Central nervous system

CO

Carbon monoxide

CO2

Carbon dioxide

CoNs

Coagulase-negative Staphylococcus

COVID-19

Coronavirus disease 2019

CPAP

Continuous positive airway pressure

CPDA

Citrate-phosphate-dextrose-adenine

CPK

Creatine phosphokinase

CPP

Cerebral perfusion pressure

CPR

Cardiopulmonary resuscitation

CPS

Carbamoyl phosphate synthetase

Cr

Creatinine

CR

Cardiorespiratory

CrCl

Creatinine clearance

CRH

Cortisol-releasing hormone

CRP

C-reactive protein

CRRT

Continuous renal replacement therapy

CSF

Cerebrospinal fluid

CSV

Continuous spontaneous ventilation

CT

Computed tomography

CTA

Computed tomography angiography

CV

Cardiovascular

CVC

Central venous catheter

CVID

Common variable immune deficiency

CVP

Central venous pressure

CVR

CCAM Volume Ratio

CVVH

Continuous veno-venous hemofiltration

CXR

Chest radiograph

DASH

Dietary Approaches to Stop Hypertension

DBP

Diastolic blood pressure

DCM

Dilated Cardiomyopathy

DHEA

Dihydroepiandrostenedione

DHT

Dihydrotestosterone

DI

Diabetes insipidus

DIC

Disseminated intravascular coagulation

DIHS

Drug-induced hypersensitivity syndrome

DKA

Diabetic ketoacidosis

DLBCL

diffuse large B-cell lymphoma;

DM

Diabetes mellitus

dMAI

Disseminated Mycobacterium avium intercellulare

DNA

Deoxyribonucleic acid

DOAC

Direct oral anticoagulant

DOC

Deoxycorticosterone

DORV

Double outlet right ventricle

DRESS

Drug rash with eosinophilia and systemic symptoms

DRI

Dietary reference intakes

DRV

Daruavir

DTG

Dolutegravir

DTR

Deep tendon reflex

DVT

Deep vein thrombosis

EAR

Estimated average requirement

EBNA

Epstein-Barr Nuclear Antibody

EBV

Epstein-Barr virus

ECF

Extracellular fluid

ECG

Electrocardiogram

ECMO

Extracorporeal membranous oxygenation

ED

Emergency department

EEG

Electroencephalogram

EIA

Enzyme immnosorbent assay

EMG

Electromyography

EMLA

Eutectic mixture of local anesthetics

EN

Enteral nutrition

EOS

Early onset sepsis

EPAP

Expiratory positive airway pressure

EPS

Extra-pyramidal symptoms

ERCP

Endoscopic retrograde cholangiopancreatography

ERV

Expiratory reserve volume

ESR

Erythrocyte sedimentation rate

ETT

Endotracheal tube

FAA

Fumarylacetoacetate

FAO

Fatty acid oxidation

FAOD

Fatty acid oxidation disorders

FDA

Food and Drug Administration

FENa

Fractional excretion of sodium

FEV-1

Forced expiratory volume -1

FFA

Free fatty acids

FFP

Fresh frozen plasma

FHR

Familial hypophosphatemic rickets

FiO2

Fraction of inspired oxygen

FISH

Fluorescent in situ hybridization

FN

False negative

FP

False positive

FRC

Functional residual capacity

FTA-ABS

Fluorescent treponemal antibody absorption

FTC

Emtricitabine

FVC

Forced vital capacity

FWD

Free water deficit

G-tube

Gastrostomy tube

G6PD

Glucose-6-phosphate dehydrogenase

GA

Gestational age

GABHS

Group A beta-hemolytic Streptococcus

GALT

galactose-1-phosphate uridyltransferase

GAS

Group A Streptococcus

GBS

Group B Streptococcus

GC

Gonococcus

GCS

Glasgow coma score

GCSF

Granulocyte-colony stimulating factor

GER

Gastroesophageal reflux

GERD

Gastroesophageal reflux disease

GFR

Glomerular filtration rate

GGT

Gamma glutamyl transferase

GH

Growth hormone

GI

Gastrointestinal

GIR

Glucose infusion rate

GJ

Gastrojejunostomy

GK

Galactokinase

GM-CSF

granulocyte-macrophage colony-stimulating factor;

GN

Glomerulonephritis

GSD

Glycogen storage disease

GU

Genitourinary

GVHD

Graft-versus-host disease

Gy

Gray unit

H2RA

H2 receptor antagonist

HAV

Hepatitis A virus

Hb

Hemoglobin

HbA

Hemoglobin A

HbF

Fetal hemoglobin

HBIG

Hepatitis B immune globulin

HbS

Hemoglobin S

HBsAb

Hepatitis B surface antibody

HBsAg

Hepatitis B surface antigen

HBV

Hepatitis B virus

HCT

Hematocrit

HCV

Hepatitis C virus

HDL

High density lipoprotein

HEENT

Head, eyes, ears, nose, throat

HELLP

Hemolysis, elevated liver enzymes, and low platelet count

HFOV

High frequency oscillatory ventilation

HGA

Human granulocytic anaplasmosis

HHH

Hyperorinthinemia-Hyperammonemia-Homocitrullinuria

HHV-6

Human herpes virus-6

HHV-7

Human herpes virus-7

HIT

Heparin-induced thrombocytopenia

HIV

Human immunodeficiency virus

HLA

Human leukocyte antigen

HLA-B27

Human leukocyte antigen B27

HLH

Hemophagocytic lymphohistiocytosis

HLHS

Hypoplastic left heart syndrome

HME

Human monocytic ehrlichiosis

HPO

Hypothalamic-Pituitary-Ovarian

HPV

Human papilloma virus

HR

Heart rate

HSCT

Hematopoietic stem cell transplantation

HSP

Henöch-Schonlein purpura

HSV

Herpes simplex virus

HUS

Hemolytic-uremic syndrome

IAP

Intrapartum antibiotics

IBD

Inflammatory bowel disease

IBD-U

Inflammatory bowel disease -unspecified

IBS

Irritable bowel syndrome

IC

Inspiratory capacity

ICP

Intracranial pressure

ICU

Intensive care unit

IDM

Infant of a diabetic mother

IDU

Injection drug use

IEM

Inborn errors of metabolism

IFN

Interferon

Ig

Immunoglobulin

IGF

Insulin-like growth factor

IGF-BP1

Insulin-like growth factor binding protein-1

IGRA

Interferon-gamma release assay

IL-1

Interleukin-1

ILCOR

International Liaison Committee on Resuscitation

IM

Intramuscular

IMRT

intensity-modulated radiation therapy;

IMV

Intermittent mandatory ventilation

INH

Isoniazid

INR

International normalized ratio

INSTI

Integrase strand transfer inhibitors

IO

Intraosseus

IOP

Intraocular pressure

IP

Interphalangeal

IPAP

Inspiratory positive airway pressure

IRIS

Immune reconstitution inflammatory syndrome

ITP

Immune thrombocytopenia purpura

IUD

Intrauterine device

IUGR

Intrauterine growth restriction

IV

Intravenous

IVF

Intravenous fluids

IVH

Intraventricular hemorrhage

IVIG

Intravenous immunoglobulin

JDM

Juvenile dermatomyositis

JIA

Juvenile idiopathic arthritis

JMML

juvenile myelomonocytic leukemia;

LCHAD

long-chain 3-hydroxyacyl-CoA dehydrogenase

LDH

Lactate dehydrogenase

LES

Lower esophageal sphincter

LET

Lidocaine, epinephrine, and tetracaine

LFT

Liver function test

LGA

Large for gestational age

LGTQ+

Lesbian, gay, bisexual, transgender, and questioning

LH

Lutenizing hormone

LHR

Lung-Head ratio

LILT

Longitudinal lengthening and tailoring procedure

LLQ

Left lower quadrant

LLSB

Left Lower Sternal Border

LMA

Laryngeal mask airway

LMP

Last menstrual period

LMWH

Low molecular weight heparin

LOC

Loss of consciousness

LOS

Late onset sepsis

LP

Lumbar puncture

LR

Likelihood ratio

LSD

Lysosomal storage disease

LTBI

Latent tuberculosis infection

LVH

Left ventricular hypertrophy

LVNC

Left Ventricular Noncompaction

MAC

Mycobacterium avium complex

MADD

Multiple acyl-CoA dehydrogenase deficiency

MAI

Mycobacterium avium intercellulare

MAO

Monamine oxidase

MAOI

Monamine oxidase inhibitor

MAP

Mean arterial pressure

MAS

Macrophage activation syndrome

MCAD

Medium-chain acyl CoA dehydrogenase

MCH

Mean corpuscular hemoglobin

MCHC

Mean corpuscular hemoglobin concentration

MCV

Mean corpuscular volume

MDAC

Multiple-dose activated charcoal

MDI

Metered dose inhaler

MDMA

3,4-Methylenedioxymethamphetamine (ecstasy)

MDS

myelodysplastic syndrome;

MEN

Multiple endocrine neoplasia

MG

Myasthenia gravis

MHA-TP

Microhemagglutination-assay Treponema pallidum

MLB

Microlaryngoscopy and bronchoscopy

MMA

Methylmalonic acid

MMR

Measles, mumps, rubella

MODY

Mature onset diabetes of the young

MPGN

Membranoproliferative glomerulonephritis

MPS

Mucopolysacharidoses

MRA

Magnetic resonance arteriography

MRI

Magnetic resonance imaging

MRSA

Methicillin-resistant Staphylococcus aureus

MRV

Magnetic resonance venography

MSAF

Meconium-stained amniotic fluid

MSH

Melanocyte-stimulating hormone

MSM

Men who have sx with men

MSSA

Methicillin-sensitive Staphylococcus aureus

MSUD

Maple syrup urine disease

MTCT

Maternal-to-child transmission

MuSK

Muscle-specific kinase

MVC

Motor vehicle crash

NAAT

Nucleic acid amplification test

NAC

N-acetylcysteine

NAIT

Neonatal alloimmune thrombocytpenia

NAPQI

N-acetyl-p-benzoquinone-imine

NARP

Neuropathy, ataxia, retinitis pigmentosa

NAS

Neonatal abstinence syndrome

NAT

Non-accidental trauma

NBL

Neuroblastoma

NBS

Newborn screening

ND

Nasoduodenal

NEC

Nectotizing enterocolitis

NEMO

Nuclear factor-kappa B essential modulator deficiency syndrome

NG

Nasogastric

NHL

Non-Hodgkin lymphoma

NICU

Neonatal intensive care unit

NIF

Negative inspiratory force

NIPS

Non-invasive prenatal screening

NJ

Nasojejunal

NMDA

anti-N-methyl-D-aspartate

NMO

Neuromyelitis optica

NNRTI

Non-nucloside reverse transcriptase inhibitor

NP

Nasopharyngeal

nPEP

Non-occupational post-exposure prophylaxis

NPL

Nasopharyngolaryngoscopy

NPO

Nil per os

NPV

Negative predictive value

NRP

Neonatal resuscitation program

NRTI

Nucleoside reverse transcriptase inhibitors

NS

Normal saline

NSAID

Non-steroidal anti-inflammatory drug

NSSI

Non-suicidal self injury

NTBC

2-(2-nitro-4-trifluoromethyl-benzoyl)-1,3-cyclohexanedione

O2

Oxygen

OAE

Otoacoustic emissions

OCP

Oral contraceptive pill

OI

Opportunistic infection

OME

Otitis media with effusion

ORIF

Open reduction, internal fixation

OSA

Obstructive sleep apnea

OTC

Ornithine transcarbamylase

OTC

Over-the-counter

PA

Pulmonary atresia

PA

Posterior-Anterior

PaCO2

Arterial partial pressure of carbon dioxide

PAH

Phe hydroxylase

PALS

Pediatric advanced life support

PAO2

Alveolar partial pressure of oxygen

PaO2

Arterial partial pressure of oxygen

Patm

Atmospheric pressure

PBD

Peroxisomal biogenesis disorders

PCA

Patient controlled analgesia

PCOS

Polycystic ovary syndrome

PCP

Phencyclidine

PCr

Plasma creatinine

PCR

Polymerase chain reaction

PCV

Pneumococcal conjugate vaccine

PDA

Patent ductus arteriosus

PE

Pulmonary embolus

PEA

Pulseless electrical activity

PEEP

Positive end expiratory pressure

PEG

Polyethylene glycol

PEP

Post-exposure prophylaxis

PES

Pediatric Endocrine Society

PET

Partial exchange transfusion

PFT

Pulmonary function test

PGE1

Prostaglandin E1

PH2O

Partial pressure of water vapor

PI

Protease inhibitors

PICU

Pediatric intensive care unit

PID

Pelvic inflammatory disease

PIP

Positive inspiratory pressure

PKU

Phenylketonuria

PMA

Post-menstrual age

PN

Parenteral nutrition

PNET

peripheral neuroectodermal tumor;

PO

Per os

PPD

Purified protein derivative

PPHN

Persistent pulmonary hypertension

PPI

Proton pump inhibitor

PPMS

Primary progressive multiple sclerosis

PPSV

Pneumococcal polysaccharide vaccine

PPV

Positive predictive value

pRBC

Packed red blood cell

PRES

Posterior reversible encephalopathy syndrome

PRG

Percutaneous radiologic gastrostomy

PRVC

Pressure-regulated volume control

PS

Pressure support

PSV

Pressure support ventilation

PT

Prothrombin time

PTH

Parathyroid hormone

PTSD

Post-traumatic stress disorder

PTT

Partial thromboplastin time

PTU

Propylthiouracil

PUCAI

Pediatric ulcerative colitis activity index

PUD

Peptic ulcer disease

PVC

Premature ventricular contraction

PVL

Periventricular leukomalacia

PVNS

Pigmented villonodular synoitis

PVR

Pulmonary Vascular Resistance

RAL

Raltegravir

RBC

Red blood cell

RDA

Recommended daily allowance

RDS

Respiratory distress syndrome

RDW

Red cell distribution width

REE

Resting energy expenditure

RF

Rheumatoid factor

RFS

Refeeding syndrome

RI

Reticulocyte index

RIG

Rabies immune globulin

RLQ

Right lower quadrant

RMSF

Rocky Mountain spotted fever

RNA

Ribonucleic acid

RNP

Anti-ribonuclear protein

ROM

Range of motion

ROP

Retinopathy of prematurity

RPR

Rapid plasma reagin

RR

Respiratory rate

RRMS

Relapsing remitting multiple sclerosis

RRR

Relative risk reduction

RSBI

Rapid shallow breathing index

RSV

Respiratory syncytial virus

RT

Radiation therapy

RTA

Renal tubular acidosis

RUQ

Right upper quadrant

RV

Residual volume

SABA

Short-acting beta-agonist

SARI

Serotonin antagonist/reuptake inhibitor

SARS-CoV-2

Severe acute respiratory syndrome coronavirus-2

SBE

Subacute bacterial endocarditis

SBI

Serious bacterial infection

SBP

Systolic blood pressure

SC

Subcutaneous

SCAR

Severe cutaneous adverse reactions

SCD

Sickle cell disease

SCFE

Slipped femoral capital epiphysis

SCID

Severe combined immune deficiency

SCN

Severe congenital neutropenia

SCT

Stem cell transplant

SD

Standard deviation

SEM

Skin, eye, mucosa

SGA

Small for gestational age

SIADH

Syndrome of inappropriate antidiuretic hormone secretion

SIDS

Sudden infant death syndrome

SIMV

Synchronized intermittent mandatory ventilation

SIRS

Systemic inflammatory response syndrome

SJS

Stevens–Johnson Syndrome

SLE

Systemic lupus erythematosus

SMS

Superior mediastinal syndrome

SSKI

Saturated solution of potassium iodide

SSRI

Selective serotonin release inhibitor

SSSS

Staphylococcal scalded skin syndrome

STEC

Shiga toxin producing Escherichia coli

STEP

Serial transverse enteroplasty

STI

Sexually transmitted infection

SUID

Sudden unexplained infant death

SV

Stroke volume

SVC

Superior vena cava

SVCS

superior vena cava syndrome

SVR

Systemic Vascular Resistance

T4

Thyroxine

TA-TMA

Transplant-associated thrombotic microangiopathy

TAC

Truncus arteriosus communis

TAF

Tenofovir alafenamide

TAPVC

Total anomalous pulmonary venous connection

TAPVR

Total anomalous pulmonary venous return

TAR

Thrombocytopenia absent radii

TB

Tuberculosis

TBI

Traumatic brain injury

TBII

Thyroid binding inhibitory immunoglobulin

TBW

Total body water

TCA

Tricarboxylic acid

TcB

Transcutaneous bilirubin

Td

Tetanus-diphtheria

TDD

Total daily dose

TDF

Tenofovir disoproxil fumarate

TEC

Transient erythroblastopenia of childhood

TEF

Tracheoesophageal fistula

TEN

Toxic epidermal necrolysis

TFP

Trifunctional protein

TGA

Transposition of the great arteries

THC

Tetrahydrocannabinol

TIA

Transient ischemic attack

TIBC

Total iron binding capacity

TINU

Tubular intersitital nephritis

TIPS

Trans-jugular intrahepatic portal shunt

TLC

Total lung capacity

TLS

tumor lysis syndrome;

TMP-SMX

Trimethoprim-sulfamethoxazole

TN

True negative

TNF

Tumor necrosis factor

TOA

Tubo-ovarian abscess

TOF

Tetraology of Fallot

TP

True positive

tPA

tissue plasminogen activator

TPN

Total parenteral nutrition

TRALI

Transfusion-related acute lung injury

TSB

Total serum bilirubin

TSH

Thyroid stimulating hormone

TSI

Thyroid stimulating immunoglobulin

TSS

Toxic shock syndrome

TSST-1

Toxic shock syndrome toxin-1

TST

Tuberculin skin test

TTN

Transient tachypnea of the newborn

TTP

Thrombotic thrombocytopenic purpura

UA

Urinalysis

UAC

Umbilical artery catheter

UC

Ulcerative colitis

UCD

Urea cycle disorders

UCr

Urine creatinine

UPD

Uniparental disomy

URI

Upper respiratory infection

USPSTF

United States Preventative Services Task Force

UTI

Urinary tract infection

UV

Ultraviolet

UVC

Umbilical venous catheter

V/Q

Ventilation/Perfusion

VC

Volume control

VCA

Viral capsid antigen

VCUG

Voiding cystourethrogram

VDDR

Vitamin D-dependent rickets

VDRL

Venereal Diseases Research Laboratory

VEGF

Vascular endothelial growth factor

VKDB

Vitamin K deficient bleeding

VL

Viral load

VLBW

Very low birth weight

VLCAD

Very long chain acyl CoA Dehydrogenase

VP

Ventriculo-peritoneal

VSD

Ventricular septal defect

VUR

Vesicoureteral reflux

vWD

von Willebrand disease

vWF

von Willebrand factor

VZV

Varicella zoster virus

WAS

Wiskott-Aldrich syndrome

WBC

White blood cell

WBI

Whole bowel irrigation

WHO

World Health Organization

XLA

X-linked agammaglobulinemia

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