(309 abbreviations)

12-HETE, 12-hydroxyeicosatetraenoic acid.

H&E, hematoxylin and eosin stain.

H&E, hemorrhage and exudate

H&H, hematocrit and hemoglobin.

H&P, history and physical (examination).

H, histidine.

h, hour.

H, hypodermic, hydrogen.

H. flu, Haemophilus influenzae.

h.p.f., high power field.

H/O, h/o, history of.

H₂S, hydrogen sulfide.

HA, headache.

HA, high anxiety.

HA, hospital admission.

HA, hydroxylapatite.

HA/Al, hydroxyapatite coated porous alumni (ceramic).

HAA, hepatitis associated antibodies.

HAART, highly active antiretroviral therapy.

HAC, hydroxylapatite ceramic.

HACCP, Hazard Analysis and Critical Control Point.

HAD, high-alcohol-drinking.

HADD, highest average daily dose.

HADS, Hospital Anxiety and Depression Scale.

HaeIII, restriction enzyme from Haemophilus aegyptius.

HAL, hypocellular acute leukemia.

HAM, human alveolar macrophage.

HASCVD, hypertensive arteriosclerotic cardiovascular disease

HAT, Halsted aphasia test.

HAT, harmonic attenuation table.

HAT, head, arm, trunk.

HAT, heparin-assosiated thrombocytopenia.

HAT, hepatic artery thrombosis.

HAT, heterophil antibody titer.

HAT, high albumin transport.

HAT, histone acetyltransferase.

HAT, hospital arrival time.

HAT, hypoxanthine, aminopterin and thymidine.

HAT, hypoxanthine, azaserine and thymidine.

Hb, hemoglobin.

HbA1c, hemoglobin A1c - used for monitoring blood glucose.

HBD, has been drinking.

HBD, hydroxybutyrate dehydrogenase.

HBF, hepatic blood flow.

HBIG, hepatitis B immune globuline.

Hbp, high blood pressure.

HBPV, Hemophillus influenzae type B polysaccharide vaccine.

HBSAG, hepatitis B surface antigen.

HBSE, Human Behavior & Social Environment.

HBV, hepatitis B virus.

HC, Hassal’s corpuscles.

HCA, hepatic cell adenomas.

HCA, Murex Hybrid Capture CMV DNA assay.

HCC, hepatocellular carcinoma.

HCFA, Health Care Financing Administration (US).

HCG, human chorionic gonadotropin.

HCGs, hyperchromatic crowded groups.

HCII, Heparin cofactor II.

HCL, hairy cell leukemia.

HCl, hydrochloric acid, hydrochloride.

HCM, health care maintenance.

HCM, hypertrophic cardiomyopathy.

HCO₃, bicarbonate.

HCPS, hantavirus cardiopulmonary syndrome.

HCT, Hct, hct, ht, hematocrit (also packed cell volume, see PCV).

HCT, helical computed tomographic.

HCTZ, hydrochlorothiazide.

HCV, hepatitis C virus.

HCV, hog cholera virus.

HCVD, hypertensive cardiovascular disease.

HD, hearing distance.

HD, heart disease.

HD, helper-dependent (e.g. adenoviral vectors).

HD, hemodialysis.

HD, herniated disks.

HD, high dose.

HD, Hodgkin's disease (lymphoma).

HD, hospital day.

HDC , high dose chemotherapy (often used as HDC/BMT) /PSCT or /PSCR ," used with HDC, means with peripheral" stem cell transplant or rescue.

HDC, high-dose chemotherapy.

HDCT, high-dose chemotherapy.

HDCV, human diploid cell vaccine.

HDF, human diploid fibroblast.

HDL, high density lipoprotein.

HDN, hemolytic disease of the newborn.

HDPE, high-density polyethylene.

HDS, herniated disc syndrome.

HE, Hektoen enteric agar.

HE, hereditary eliptocytosis.

HEADS, home , education & employment, activities, drugs, and sexuality (special history taking technique for adolescents).

HEC, Hemorrhagic Escherichia Coli.

HECOS, Health and Economic Consequences of Smoking.

HEDIC, Healthcare Electronic Data Interchange Corporation.

HEENT, head, ears, eyes, nose, and throat.

HELLP, hemolysis, elevated liver enzymes, low platelets syndrome.

HEMA, 2-hydroxyethylmethacrylate.

HEMA-MMA, hydroxyethyl methacrylate-methyl methacrylate.

HEP, home exercise program.

HEPA, high-efficiency particulate air/adsorption.

HER2 , human EGF-like receptor no. 2; short for HER2,ECD (extra cellular domain) (also called Her2/neu).

HETE’s, HydroxyEicosaTetraEnoic acids.

HEV(s), high endothelial venule(s).

HF, hay fever.

HF, heart failure.

HFC, high frequency cells.

HFOV, high-frequency oscillatory ventilation.

HFRT, hyperfractionated radiotherapy.

HFV, hippocampal formation volume.

HG, herpes gestationis.

HG, Hog Cholera.

Hg, Mercury.

hgb, Hb, HGB, hemoglobin.

HGE, human granulocytic ehrlichiosis.

HGH, human growth hormone.

HGM, human gastric mucin.

HGPRT, hypoxanthine guanine phosphoribosyl transferase.

HGSIL, high-grade squamous intraepithelial lesion.

HH, hard of hearing.

HH, hiatal hernia.

Hha, Halobacterium halobium.

HHC, hereditary hemochromatosis.

HHNK - hyperglycemic hyperosmolar non-ketotic.

HHV, human herpes virus.

HHV-8, human herpes virus 8.

HI, hemagglutination inhibition.

Hi, hemiglobin (methemoglobin).

HIAA (5-), 5-hydroxyindoleacetic acid.

HIB, Haemophilus influenzae type B.

Hib, Hemophillus influenzae type B conjugate vaccine.

HIBCC, Health Industry Bar Code Council.

HiCN, hemiglobincyanide.

HIDA, Health Industry Distributors Association.

HIDA, hepatic iminodiacetic acid (imaging or scanning).

HIDA, tetrahydroindazolone carboxylic acid.

HIER, heat induced epitope retrieval.

HIFU, high intensity focused ultrasound.

HIM, Health Information Management.

HIMA, Health Industry Manufacturers Association.

HindIII, restriction enzyme from Haemophilus influenzae R_d.

HIPAA, Health Insurance Portability and Accountability Act.

HIPSOC, Hip Society (also: AAOS Related Organizations).

His, histidine.

HIT, heparin induced thrombocytopenia.

HIT, Holtzman Inkblot Technique.

HIV, human immunodeficiency virus.

HIV/AIDS, Human Immuno-Deficiency Virus/Acquired Immune Deficiency Syndrome.

H-J, hepatojugular.

HJR, hepatojugular reflux.

HK, high molecular weight kininogen.

HKAFO, hip-knee-ankle-foot orthosis.

HKCOS, Hong Kong College of Orthopaedic Surgeons.

HKOA, Hong Kong Orthopaedic Association.

HL, hearing loss.

HL, heart and lungs.

HLA, heart, lungs, abdomen.

HLA, human leukocyte antigen.

HL-A, Human Leukocyte Associated antigens (HL-A matching for BMT).

HLA-DR, D-related human leukocyte antigen.

HLFs, human lung fibroblasts.

HLH, histiocytic lymphohistiocytosis.

HLK, heart, liver, kidney.

HLV, herpes like virus.

HM, hand motion.

HM, heart murmur.

HMD, hyaline membrane disease.

HME, heat and humidity exchanger.

HMGI, high mobility group I.

HMGR, 3-Hydroxy-3-methylglutaryl-coenzyme A reductase.

HMO, health maintenance organization.

HMP, hexose monophosphate (oxidative shunt).

HMP, hot moist packs.

HMPAO, hexamethyl propyleneamine oxime.

HMSN, hereditary motor and sensory neuropathies.

HMWK, high-molecular weight kininogen.

HNP, herniated nucleus pulposus.

HNPP, hereditary neuropathy with liability to pressure palsies.

HNV, has not voided.

HO, heterotopic ossification.

HO, history of.

HO, house officer.

HOA, hypertrophic osteoarthropathy.

HOB, head of bed.

HOCM, hypertrophic obstructive cardiomyopathy.

HoFH, homozygous familial hypercholesterolaemia.

HOH, hard of hearing.

HOMC, hypertrophic obstructive cardiomyopathy.

HON, Health On the Net Foundation.

HONC, hyperosmolar nonketotic coma.

Hop, H. pylori outer membrane protein.

Hor v 9, group IX pollen allergen from barley (Hordeum vulgare).

HOR, Health outcomes research.

HOR, high outlet resistance.

HOR, higher-order repeat.

HOR, homing receptor.

HOR, homologue of rap.

HOR, hordein genes.

HOR, horizontal movable arm support.

hor, horizontal.

hOR, human oestrogen receptor.

hOR, human oxidoreductase.

HOR, hydroxysteroid oxidoreductase.

HOR, hyperosmolarity-responsive.

HOR, rehydrated Hemoccult.

Hor-1, fucan sulfate isolated from the hot water extract of an edible brown alga, Sargassum horneri.

HOS, Hawaii Orthopaedic Society.

HOS, Hemoccult sensa.

HP, haptoglobin.

HP, hemipelvectomy.

HP, hot pack.

HP, hot-plate.

HPA, hypothalamo-pituitary-adrenocortical.

HPC, hematopoietic progenitor cells.

HPC-PEP, peplomycin emulsion in hydroxypropylcellulosum.

HPE, history and physical examination.

HPETE, hydroperoxyeicosatetraenoic acid.

HPF, high power field.

HPFH, hereditary persistence of fetal hemoglobin.

HPI, history of present illness.

HPL, Human Performance Laboratory.

hPL, human placental lactogen.

HPLC, high pressure (or performance) liquid chromatography.

HPMC, hydroxypropyl methylcellulose.

HPNS, high pressure neurologic syndrome.

HPP, hereditary pyropoikilocytosis.

HPSA, health professional shortage area.

HPT, hyperparathyroidism.

HPTR, hypoxanthine phosphoribosyltransferase.

HPV, Human Papilloma Virus.

HQoL, health-related quality of life.

HR, heart rate.

HR, high risk.

HR, hospital record.

Hr, hour.

HRDO, Human Resources Development Office.

HRF, homologous restriction factor (regulates C9).

HRIG, human rabies immunoglobin.

HRMS, Human Resources Management Systems.

HRP, horseradish peroxidase.

HRQOL, health-related quality of life.

HRRR, heart regular rate and rhythm.

HRS, Hodgkin and Reed-Sternberg cells.

HRT, hormone replacement therapy.

HS purpura, Henoch-Schönlein purpura.

hs, h.s., hora somni - hours of sleep, at bedtime.

HS, heart sounds.

HS, hereditary spherocytosis.

Hs, hora somni.

HSA, human serum albumine.

hs-CRP, high-sensitivity C-reactive protein.

HSDA test, high solids anaerobic digestion test.

HSEL, Hemeselect.

HSG, hysterosalpingography.

HS-GC, head space gas chromatography.

HSIL, high squamous intraepithelial lesion.

HSP, Henoch-Schönlein purpura.

HSS, Hospital for Special Surgery.

HSV, herpes simplex virus.

HT, heart.

ht, height.

HT, hospital treatment.

HT, hypertension.

HT, hyperthyroidism.

HTLV-I, human T-cell lymphotropic virus types I.

HTMT, heptane carboxamide (an H1 receptor antagonist).

HTN, hypertension.

HTS, high throughput screening.

HUS, hemolytic uremic syndrome.

HUVEC, human umbilical vein endothelial cells.

HV, half-value.

HV, healthy volunteers.

HV, hepatic vein.

HV, herpes virus.

HV, home visit.

HV, hospital visit.

HV, hyperventilation.

HVA, homovanillic acid.

HVD, hypertensive vascular disease.

HVL, half-value layer.

HVO, Health Volunteers Overseas.

HW, healing well.

HW, hemodynamically weighted.

HWI, hazardous waste incinerator.

HWI, Hazardous Waste Index.

HWI, head-out water immersion.

HWI, Heart weight index.

HWI, Heart work index.

HWI, heartworm infection.

HWI, height-width index.

HWI, hemodynamically weighted imaging.

HWI, Hepatic weight index.

HWI, high water intake.

HWI, hip-waist index.

HWI, hot-water irrigation (was introduced as a treatment of epistaxis more than 100 years ago).

HWL, healthy way of life.

HWL, Heat-Withdrawal Latency.

HWL, height-width-length.

HWL, hindpaw withdrawal latency.

HWL, hybrid white leghorn.

HWL-12, 2-phenyl-3-(3’,5’-dimorpholinomethyl-4’-hydroxy)-benzoyl-indole.

HWP, hot wet pack.

HWT, H-wave therapy.

Hx, history.

HY, Hoehn and Yahr (scale).

HYP, hyperpneic.

hyp., hypodermic.

hypo, hypodermically.

Hz, Hertz (cycles per second).

HZT, high zone tolerance.

HZV, herpes zoster virus.