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helium

 (He) [he´le-um]
a chemical element, atomic number 2, atomic weight 4.003. (See Appendix 6.) Helium is a chemically inert element that is odorless, tasteless, and noncombustible. Because of its low density it is easily moved through the air passages and therefore requires little effort in breathing on the part of the patient in respiratory distress. Although helium itself has no chemical therapeutic value, when combined with oxygen it facilitates delivery of oxygen to the lungs (see helium-oxygen therapy). It should be noted that helium causes the voice to be high-pitched and the spoken word difficult to understand. This should be explained to the patient with the assurance that the effect is harmless and temporary.
helium-oxygen therapy the administration of a mixture of helium and oxygen (commonly 80 per cent He and 20 per cent O2, or 70 per cent He and 30 per cent O2); used in the management of airway obstruction associated with bronchospasm or bronchial asthma. The He-O2 mixture is about one third the density of air. This reduces turbulent flow and the patient effort required for ventilation.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

He

Symbol for helium, a preceding superscript number indicates an isotope.
Farlex Partner Medical Dictionary © Farlex 2012

HE

Abbreviation for:
haemangioendthelioma
haematoxylin and eosin
haemorrhagic enteritis
health economy 
health education 
Hektoen enteric Microbiology
hepatic encephalopathy
hepatitis E
hereditary elliptocytosis
herpetic encephalopathy
high efficiency
high endothelial
higher education 
holoenzyme
hypereosinophilia
hyperextension
hypertensive encephalopathy
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

HE

1. Hemoglobin electrophoresis, see there.
3. Human enteric.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

He

Symbol for helium
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

He

Symbol for helium.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Professor Wlodzimierz Borodziej, Chair of the HEH Academic Committee said: "Like the union, the work of the House of European History will never be complete.
HEH: No, Rwandans are very entrepreneurial actually, and I do not think that was the issue, I think the issue was the lack of a track record in developing business lounges.
French utility EDF on Monday received an irrevocable GBP5.775bn (USD9.126bn/EUR6.982bn) bid from a consortium, comprising HEH with 40%, CKI with 40% and the Li Foundation with 20%, for its British network which heightened S&P's concerns that Hutchison may steer away from its debt reduction efforts.
She was answered by a "Heh heh" and a "I wouldn't mind already vegetables and sour cream."
We use the term heh goos to refer to a man of particularly high status.
Patients 3-6 months of age are given HEH oral premedication 0.2 ml/kg PO and pentobarbital 4 mg/kg PO 1 hour prior to the procedure (HEH oral premedication consists of meperidine liquid (3 mg/0.4 ml) and atropine liquid (0.02 mg/0.4 ml) in a syrpalta base).
C R heh Coronation Street ITV1, 7.30pm Rita crashes the Queen's Big Day with her wedding to Dennis, the brazen cheek of it.
menwmenmen will always get in th thehehe heh way of friendship betweeween een d R h Resear Researchers rc from the University ofofof E Cl Wfofouadad Resea chers rc y Wisconsin-Eau Claire so alsalsa und men more frequ tly ently ntn dmitted attraction to theireiei fe l f ds wh ly female r ends while friends whil le overestimating their ir friend's romantic f d' f i d' ti f l f h feelings for them.
HEH HEH Come in, I have things of need To you--Farb!
She said 'aap mutmayeen heh' which means 'are you satisfied?" All four victims were bludgeoned to death with a one- and-a-half-foot long rounders bat bought by Arshad only days before the murders.
IF YOU'RE CALLING AUNT MILLIE IN PARIS, FRANKLY HEH! HEH!
What a Mother's Day present--and it didn't cost me a cent (heh, heh, heh!).