Browse Medical Abbreviations

H hydrogen [element]; heroin; history; hypodermic
h hour; height
H flu hemophilus influenzae
H&E hematoxylin and eosin
H&H hematocrit and hemoglobin
H&L heart and lungs
H&N head and neck
H&P history and physical
H+ hydrogen ion
H-FABP heart-type fatty acid binding protein
h. hour
h.s. bedtime (L. hora somni)
h/a headache
H/H Henderson-Hasselbalch equation; hemoglobin/hematocrit
h/o history of
H1N1 Influenza A, swine flu (hemagglutinin type 1 and neuraminidase type 1)
H2 histamine 2
H2O water
H2O2 hydrogen peroxide
H2SO2 sulfuric acid
HA hydroxyapatite; hemagglutinin; health authority; hyaluronic acid; headache; hearing aid
HAA hepatitis-associated antigen
HAART highly active antiretroviral therapy
HAD hospital anxiety and depression [scale]
HAGG heat-aggregated IgG
HAIR-AN hyperandrogenism (HA), insulin resistance (IR) and acanthosis nigricans (AN)
HAL hyperalimentation
HALE health-adjusted life expectancy
HAM-D Hamilton Rating Scale for Depression
HAMA Human anti-mouse antibody
HAMRSA healthcare associated with MRSA
HAP hospital-acquired pneumonia
HAPE high-altitude pulmonary edema
HAQ health assessment questionnaire
HAV hepatitis A vaccine; hepatitis A virus
HAZMAT hazardous materials
HAZOP hazard and operability
HB heart block
Hb hemoglobin
Hb A1c glycosylated hemoglobin
HB SA hepatitis B surface antigen
HbA hemoglobin A
HbA1c hemoglobin A1c; hemoglobin A1c
HBAg hepatitis B antigen
HbAS hemoglobin A and Hemoglobin S (Sickle cell trait)
HbB hemoglobin B
HbC hemoglobin C; abnormal hemoglobin
HBcAg Hepatitis B core antigen
HBD hydroxybutyric dehydrogenase
HBeAg hepatitis B e antigen
HbF hemoglobin F
HBGM home blood glucose monitoring
HBIG hepatitis B immune globulin
HBO hyperbaric oxygenation
HBOT hyperbaric oxygen therapy
HBP high blood pressure
HBPM home blood pressure monitoring
HbS hemoglobin S
HBS hepatobiliary scintigraphy
HBsAg hepatitis B surface antigen
HBV hepatitis B virus; hepatitis B vaccine
HC head circumference; hydrocortisone; home care
HCA healthcare assistant
HCAP healthcare associated pneumonia
HCG human chorionic gonadotropin
HCI human-computer interaction
HCl hydrochloric acid (hydrogen chloride)
HCL hard contact lens
HCM hypertrophic cardiomyopathy
HCMV human cytomegalovirus
HCO health care organization
HCO3 bicarbonate
HCP health care provider/professional
HCQ hydroxychloroquine
HCST hematopoietic stem cell transplant
Hct hematocrit
HCTZ hydrochlorothiazide
HCV hepatitis C virus
HCVD hypertensive cardiovascular disease
HCW health care worker
Hcy homocysteine
HCY homocystinuria
HD Huntington's disease; Hodgkin's disease; herniated disk; hemodialysis; hearing distance; health department
HDC high-dose chemotherapy
HDCV human diploid cell rabies vaccine
HDF hemodiafiltration
HDGC hereditary diffuse gastric cancer
HDI high-definition imaging
HDL high-density lipoprotein (cholesterol)
HDLC high-density lipoprotein cholesterol
HDN hemolytic disease of the newborn
HDP hydroxymethylene diphosphonate
HDRS Hamilton Depression Rating Scale
HDS hemodynamically stable; herniated disk syndrome
HDT home dialysis training
HDU Hemodialysis Unit; high dependency unit
HDV hepatitis delta virus
HE home evaluation
He helium [element]
HEENT head, eye, ear, nose, and throat
HELLP hemolysis, elevated liver enzymes, low platelets
Hem hemoglobin
HEMO hematology
HemOnc hematology/oncology
HEP home exercise program
Hep hepatoma cell line
HEp-2 human epithelial cell line 2
HepA hepatitis A
HEPA high-efficiency particulate air (filtration)
HepB hepatitis B
HER2 human epidermal growth factor receptor 2
HEV Hepatitis E virus
HEW Department of Health, Education, and Welfare
HF high frequency; heart failure
Hf hafnium [element]
HFA hydrofluoroalkane
HFCS high-fructose corn syrup
HFJV high-frequency jet ventilation
HFOV high-frequency oscillatory ventilation
HFV high-frequency ventilation
Hg hemoglobin; mercury [element]
HGA human granulocytic anaplasmosis
Hgb hemoglobin
HgbA1c glycosylated hemoglobin
HGE human granulocytic ehrlichiosis
HGF hematopoietic factor; hepatocyte growth factor; human growth factor
HGH human growth hormone
HGSIL high-grade squamous intraepithelial lesion
HGV hepatitis G virus
HH hiatal hernia; hereditary hemochromatosis
HHA home health aide; home health agency
HHC home health care
HHE health hazard evaluation
HHI Herth Hope Index
HHNC hypertonic hyperosmolar non-ketotic coma
HHRG home health resource group
HHS U.S. Department of Health and Human Services
HHT hereditary hemorrhagic telangiectasia
HHV human herpesvirus
HHV-6 human herpesvirus 6
HI hepatic insufficiency; hemagglutination inhibitor; hearing impaired; health insurance; homicidal ideation
HIA health impact assessment
Hib Haemophilus influenzae type B
HID Health Information Design; herniated intervertebral disc
HIDA hepatobiliary iminodiacetic acid (cholescintigraphy)
HIE hypoxic-ischemic encephalopathy
HIM health information management; hepatosplenomegaly
HIPAA Health Insurance Portability and Accountability Act
his-tRNA histidyl-transfer RNA
HIT health information technology; heparin-induced thrombocytopenia
HIV human immunodeficiency virus
HIV-PEP HIV postexposure prophylaxis
HIV-RNA viral load of HIV
HJR hepato jugular reflux
HL Hodgkin lymphoma; hearing level; hearing loss; heparin lock
HL7 Health Level 7
HLA human leukocyte antigen; human lymphocyte antigen
HLCS holocarboxylase synthetase
HLH hypoplastic left heart
HLHS hypoplastic left heart syndrome
HLRCC hereditary leiomyomatosis and renal cell cancer
HM hand movement
HMD hyaline membrane disease
HME hereditary multiple exostoses
HMG-CoA hydroxymethyl glutaryl coenzyme A
HMO health maintenance organization
HMW high molecular weight
HNF hepatocyte nuclear factor
HNP herniated nucleus pulposus
HNPCC hereditary non-polyposis colorectal cancer
hnRNA heterogeneous nuclear RNA
hnRNP heterogeneous nuclear RNP
HNV has not voided
Ho holmium [element]
HO heterotopic ossification
HOA hypertrophic osteoarthropathy
HOB head of bed
HOCM hypertrophic obstructive cardiomyopathy
HOH hard of hearing
hor. som bedtime
HOSA health occupations students of
hosp hospital
HOT home oxygen therapy
HP hot pack
HPA health protection agency; hypothalamic-pituitary axis
HPB hepatopancreatobiliary
HPC human/hematopoietic progenitor cells; history of presenting complaint
HPE holoprosencephaly
HPF high-power field
HPFH hereditary persistence of fetal hemoglobin
HPI history of present illness
HPL human placental lactogen
HPLC high-performance liquid chromatography
HPN hypertension
HPOA hypertrophic pulmonary osteoarthropathy
HPS hypertrophic pyloric stenosis
HPV human papilloma virus
hr hour
HR heart rate; hazard ratio
HRA health risk assessment
HRCT high resolution computed tomography
HRQoL health-related quality of life
HRS hepatorenal syndrome
hrs hours
HRSA Health Resources and Services Administration (U.S.)
HRT hormone replacement therapy
hs at bedtime (L. hora somni)
HS herpes simplex; heart sounds; hidradenitis suppurativa
HSA human serum albumin; health services administration
HSCT hematopoietic stem cell transplantation
HSDD hypoactive sexual desire disorder
HSG hysterosalpingogram; herpes simplex, genitalis
HSIL high-grade squamous intraepithelial lesion
HSM hepatosplenomegaly
HSP hereditary spastic paraplegia; Henoch-Schonlein purpura; heat shock protein
HSS hepatic stimulator substance; hyperosmolar hyperglycemic state; Hallervorden-Spatz syndrome
HSV hypersensitivity vasculitis; herpes simplex virus
HSV-1 herpes simplex virus type 1
HSV-2 herpes simplex virus type 2
HT hypertension; hormone therapy
ht height
HTLV human T-cell lymphotropic virus
HTLV-III human T-cell lymphotropic virus type III
HTN hypertension
HTS hypertonic saline
HUD humanitarian use device
HUS hemolytic uremic syndrome
husb husband
HV home visit/visitor
Hx history
Hy hyperopia
hyg hygiene
hypo hypodermic injection
hyst hysterectomy
Hz hertz (cycles per second)
HZV herpes zoster virus