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a change or deviation.
antigenic shift a sudden, major change in the antigenicity of a virus, seen especially in influenza viruses, resulting from the recombination of the genomes of two different strains; it is associated with pandemics because hosts do not have immunity to the new strain. See also antigenic drift.
chloride shift the exchange of chloride and carbonate between the plasma and the erythrocytes that takes place when the blood gives up oxygen and receives carbon dioxide. It serves to maintain ionic equilibrium between the cell and surrounding fluid.
mediastinal shift a shifting to one side of the tissues and organs of the mediastinum; see also mediastinal shift.
shift to the left
1. a change in the blood picture, with a preponderance of young neutrophils.
2. an increased oxygen affinity of hemoglobin.
shift to the right
1. a preponderance of older neutrophils in the blood picture.
2. a decreased oxygen affinity of hemoglobin.
weight shift
1. the frequent movement of a paralyzed or partially paralyzed patient to redistribute the patient's weight and prevent impairment of circulation, which leads to pressure sores. One variation is the wheelchair pressure release.
2. relocation of a patient's center of mass in order to allow movement; see also gait.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


An alteration; in pathology, structural alteration of which the cause and significance is uncertain.
Synonym(s): shift
Farlex Partner Medical Dictionary © Farlex 2012


Vox populi
The change in a thing.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


1. Synonym(s): change.
2. A period of 8-12 hours during which an employee is assigned to work on a given day. Division of each 24 hours into day, evening, and night shifts is intended to maximize efficiency.
See also: deviation
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Patient discussion about shift

Q. I started a new job a month ago – it’s night shifts as a security guard in a large office building I don’t know why, but I started feeling very down in the last week. Can it be that the change in waking hours is effecting me?

A. there are dozens of studies about night shift workers that try to connect them to all sort of things. and there is a good reason- our hormonal balance is maintained by our Hypothalamus (an area in the brain). being awake on night time changes it's function, it changes our hormonal system balance and other things around our brain. this can easily cause things like depression amongst some people.

More discussions about shift
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References in periodicals archive ?
Theory of Three Parameters Shifting Schedule for Tractor Automatic Transmission
Instead of the synchronizer in traditional transmission, the EMT uses the gear clutch teeth to mesh and separate in the gear shifting process, which is helpful for reducing the axial size.
At first blush, it might seem odd to look for guidance on the subject of cost shifting for nonparties (and especially cost shifting of attorney time) in Zubulake.
Saint Simonian planners proposed extensive commercial canals in the Basin area and permanent channels through the shifting sands of its marshy bay.
* Markets: While some of the production shifts are intended to capitalize on foreign markets, it is clear that the majority of the U.S.-based multinational corporations shifting production to China are not simply targeting the Chinese market.
At some point while writing, I used the word "shifting." The term soon emerged as the central metaphor for the book; the word that best captured and evoked not only the various guises black women assumed, but all the changes black women went through emotionally and psychologically as they dealt with bias.
If Sue is willing to take on the challenge of shifting her orientation and becoming a slightly modified designer of better court mediation, then I believe the result will be a balanced primary-secondary control orientation and a shift from a compensation to an optimization strategy.
"Shifting the workload to the Defense Distribution Center has made a lot of sense.
This issue has three specific objectives: to examine the reference tradition within the context of recent technological advances, to determine the extent to which the paradigm is shifting, and to explore the implications for library practice.
One of the act's boldest initiatives was shifting the burden of proof from the taxpayer to the IRS in civil tax matters (new IRC section 7491).