2,4-DNPH | 2,4-Dinitrophenylhydrazine |
3-MCC | 3-Methylcrotonyl-CoA carboxylase |
17-OHP | 17-Hydroxyprogesterone |
A1AT or AAT | α1-Antitrypsin |
AaDO2 | Alveolar-to-arterial oxygen gradient |
A/a gradient | Alveolar/arterial gradient |
AAOS | American Academy of Orthopedic Surgeons |
AAP | American Academy of Pediatrics |
AAP-CON | The American Academy of Pediatrics Committee on Nutrition |
a/A ratio | Arterial/alveolar oxygen ratio |
AATD | α1-Antitrypsin deficiency |
A’s and B’s | Apnea and bradycardia |
ABC | Airway, breathing, circulation |
ABR | Auditory brainstem response |
ABS | Amniotic band syndrome |
A/C | Assist/control |
ACAAI | American College of Allergy, Asthma, and Immunology |
ACE | Angiotensin-converting enzyme |
ACF | Asymmetric crying face |
aCGH | Array comparative genomic hybridization |
AChR | Acetylcholine receptor |
ACIP | Advisory Committee on Immunization Practices |
ACLS | Advanced Cardiac Life Support |
ACMG | American College of Medical Genetics and Genomics |
ACOG | American College of Obstetricians and Gynecologists |
ACT | Activated clotting time; activated coagulation time |
ACTH | Adrenocorticotropic hormone |
ADH | Antidiuretic hormone |
ADHD | Attention deficit hyperactivity disorder |
ADMA | Asymmetric dimethylarginine |
AE | Adverse effects |
AED | Automatic external defibrillator; antiepileptic drug |
AEDV | Absent end-diastolic velocity |
aEEG | Amplitude-integrated electroencephalography |
AEP | Auditory evoked potential |
AFB | Acid-fast Bacillus |
AFI | Amniotic fluid index |
AFP | α-Fetoprotein |
AF PCR | Amniotic fluid polymerase chain reaction |
AGA | Appropriate for gestational age |
AGS | Adrenogenital syndrome |
AHA | American Heart Association; α-hydroxy acids |
AHT | Abusive head trauma |
Al | Aortic insufficiency |
AIDS | Acquired immunodeficiency syndrome |
AIS | Amniotic infection syndrome; arterial ischemic stroke |
AIT | Alloimmune thrombocytopenia |
ALARA | As low as reasonably achievable |
ALGS | Alagille syndrome |
ALP | Alkaline phosphatase |
ALRI | Acute lower respiratory tract infection |
ALT | Alanine aminotransferase |
ALTE | Apparent life-threatening event |
AM | Morning |
AMC | Arthrogryposis multiplex congenita |
ANC | Absolute neutrophil count |
Ao | Aortic |
Aol | Aortic isthmus |
AOI | Apnea of infancy |
AOP | Apnea of prematurity |
AP | Anteroposterior |
Apgar | Appearance, pulse, grimace, activity, respirations |
API | Anal position index |
ApoA-1 | Apolipoprotein A1 |
APR | Acute-phase reactants |
aPTT | Activated partial thromboplastin time |
AR | Autosomal recessive |
ARA/AA | Arachidonic acid |
ARC | AIDS-related complex |
ARC syndrome | Arthrogryposis–renal dysfunction–cholestasis |
ARD | Antibiotic removal device; antiretroviral drug |
ARDS | Acute respiratory distress syndrome |
AREDFV | Absent or reversed end-diastolic flow velocity |
ARF/AKI | Acute renal failure/acute kidney injury |
ARHB | Age-related/height-based |
ARM | Anorectal manometry |
ART | Assisted reproductive technology; antiretroviral therapy |
ARV | Antiretroviral |
AS | Aortic stenosis |
ASA | Argininosuccinic aciduria; American Society of Anesthesiologists |
ASAP | As soon as possible |
ASD | Atrial septal defect |
ASH | Asymmetric septal hypertrophy |
ASPEN | American Society for Parenteral and Enteral Nutrition |
AST | Aspartate aminotransferase |
ATN | Acute tubular necrosis |
ATP | Adenosine triphosphate |
ATTEND | Attunement, trust, touch, egalitarianism, nuance, and death education |
AV | Atrioventricular; arteriovenous |
A-VO2 | Arteriovenous oxygen difference |
B19V | Parvovirus B19 |
B/A | Bilirubin-to-albumin ratio |
BA | Biliary atresia |
BAEP | Brainstem auditory evoked potential |
BAER | Brainstem audiometric evoked response |
BAS | Balloon atrial septostomy |
BASDs | Bile acid synthesis disorders |
BBS | Bronze baby syndrome |
BCAA | Branched-chain amino acids |
BCG | Bacille Calmette-Guérin |
BD | Base deficit |
BE | Base excess |
BEAT-ROP | Bevacizumab Eliminates the Angiogenic Threat of Retinopathy of Prematurity |
BF | Breast feeding |
BG | Babygram (radiograph that includes the chest and abdomen) |
β-hCG | β-Human chorionic gonadotropin |
BIA | Bacterial inhibition assay |
bid | Twice daily |
BIIP | Behavioral Indicators of Infant Pain |
BIND | Bilirubin-induced neurologic dysfunction |
BIO | Binocular ... |