exposure

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exposure

 [eks-po´zhur]
1. the act of laying open, as surgical exposure.
2. the condition of being subjected to something, as to infectious agents or extremes of weather or radiation, which may have a harmful effect.
3. in radiology, a measure of the amount of ionizing radiation at the surface of the irradiated object, such as a person's body; calculated by multiplying milliamperage times exposure time in seconds, expressed in units of milliampere seconds (mAs). See also x-rays.
x-ray exposure see exposure (def. 3).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ex·po·sure

(eks-pō'zhūr),
1. A condition of displaying, revealing, exhibiting, or making accessible.
2. In dentistry, loss of hard tooth structure covering the dental pulp due to caries, dental instrumentation, or trauma.
3. Proximity or contact with a source of a disease agent in such a manner that effective transmission of the agent or harmful effects of the agent may occur.
4. The amount of a factor to which a group or individual was exposed; in contrast to the dosage, the amount that enters or interacts with the organism.
Farlex Partner Medical Dictionary © Farlex 2012
Epidemiology A state of contact or close proximity to a chemical, pathogen, radioisotope or other other substance by ingesting, breathing, or direct contact—e.g., on skin or eyes; exposure may be short term—acute—or long term—chronic

Imaging An image, such as an anteroposterior exposure of the chest
Medical liability The degree of malpractice risk borne by a health care provider while performing a particular medical service
Nuclear physics The amount of ionising radiation in air from X-rays or gamma rays at a specific point in space, defined as the total charge of ions divided by the mass that would completely stop the radiation; the SI unit for exposure is coulomb per kg—C/kg; in human terms, exposure refers to the amount of ionizing radiation to which a person has been subjected
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

exposure

Epidemiology A state of contact or close proximity to a chemical, pathogen, radioisotope or other other substance by swallowing, breathing, or direct contact–eg, on skin or eyes; exposure may be short term–acute or long term–chronic. See Acute exposure, Athlete exposure, Chronic exposure, Intermediate exposure, Occupational exposure to bloodborne pathogens, Perinatal substance exposure Imaging An image, as an AP exposure of the chest Medical liability A general term for the degree of malpractice risk borne by a health care provider while performing a particular medical service See Risk management.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ex·po·sure

(eks-pō'zhŭr)
1. Contact of a compound with an epithelial barrier such as the skin, eyes, respiratory tract, or gastrointestinal tract before absorption occurs.
See also: exposed dose, external dose
2. Physical effects caused by harsh weather.
3. Placing an object or person in a given environmental state.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

exposure

  1. the aspect of a particular location with respect to the points of the compass, for example, some garden plants, such as the peach tree in England, prefer a southern exposure.
  2. a rock outcrop.
  3. a soil section.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

ex·po·sure

(eks-pō'zhŭr)
1. In dentistry, loss of hard tooth structure covering the dental pulp due to caries, dental instrumentation, or trauma.
2. A condition of displaying, revealing, exhibiting, or making accessible.
3. Proximity to contact with a source of a disease agent in such a manner that effective transmission of the agent or harmful effects of the agent may occur.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about exposure

Q. I feel some effects due to less exposure to sunlight. I heard that UV lighting is effective for depression. I’m living in northwest pacific; the summers are very nice but way to short. I feel some effects due to less exposure to sunlight. I have been told that sun light helps the production of the chemical in the brain that we are deficient of. If true, are there certain types of fixtures and/or bulbs that I should try.

A. Its also called seasonal affective disorder:
http://medical-dictionary.thefreedictionary.com/disorder

(SAD) depression with fatigue, lethargy, oversleeping, overeating, and carbohydrate craving recurring cyclically during specific seasons, most commonly the winter months.

I would about UV. Perhaps you should get a fluorescent light fixture for the area where you spend the most time each day and turn it on.

The web sites that sell the commercial light boxes want several hundred dollars or even more. (Seems like rip off to me.)
The web page at
http://www.ncpamd.com/seasonal.htm

says "studies suggest that regular fluorescent lights will work as well. UV (ultraviolet) light can damage eyes and skin, so it must be filtered out. It is best to buy a commercially built light box to be sure of the exact amount of light and to be sure that there are no isolated "hot spots" which could damage eyes. Many people still prefer full spectrum (minus UV) light because it i

Q. how do i keep my baby as minimal as passable exposed to the out side world threats? like decease and other things

A. It might seem like a caring attitude, but I'm not sure it's neither possible nor absolutely necessary - babies do get sick, usually only mildly and transiently, so trying to prevent all the cases of fever would be quite impossible.

What you can do, is to maintain the regular infant welfare visits, give him or her the necessary vaccinations (one of the most important things you can do for your child), make sure your baby eats well, regarding both the amount and type of foods, and generally keep a good hygiene: make sure to wash hands after you go to the toilet and before you handle your baby, don't expose him or her to other sick infants etc.

However, all this is just a general advice - if you have specific question you may want to consult your doctor (e.g. a pediatrician).

Take care,

More discussions about exposure
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References in periodicals archive ?
However, the four benzene-exposed myeloid leukemia cases in our cohort were all highly exposed (i.e., greater than median cumulative exposure and exposed > 21 years) and a higher risk of myeloid leukemia was observed for women in the highest exposure duration tertile (HR = 2.62, 95% CI: 0.92, 7.50) and for workers with cumulative exposure levels higher than the median of 59 mg/m3-years (HR = 1.65, 95% CI: 0.58, 4.71).
(Steenland and Armstrong 2006), where p represents the proportion of the general adult population with cumulative exposure to DEE at level i, and [RR.sub.i] represents the RR associated with cumulative exposure at level i (i.e., the meta-analysis RR x i).
Ulcerative colitis showed a significant positive association with cumulative PFOA exposure, with monotonically increasing rate ratios for both the unlagged and lagged exposures and significant trends based on models of log-transformed cumulative exposure. No such trend was evident for Crohn's disease or for any of the other autoimmune diseases examined.
Time-dependent cumulative exposure was modeled as lags of 0, 5, and 10 years, as continuous, and in quartiles.
The authors say that long-term cumulative exposure (7-11 years) to any antipsychotic treatment was associated with around 20 per cent lower mortality than was no drug use.
All members of the cohort were classified by cumulative exposure experienced before 1 January 1980.
We used the median of exposed community referents as the cut point to classify low and high exposure levels for the frequency of incense burning (1-2 times/day and > 2 times/day) and cumulative exposure (1-60 day-years and > 60 day-years, where 2 day-years is equivalent to burning incense twice a day for 1 year, or once a day for 2 years, etc.), respectively, whereas those never exposed to incense burning were treated separately as the reference group.
This long-term cumulative exposure corresponded to roughly a 50 percent increased risk of dying from lung disease compared to no exposure to the pollutant.
For cumulative exposure during the second to fifth days of an admission, the HR of inpatient mortality was 1.048 (95 percent CI, 0.998 to 1.100; P = 0.061) for exposure to shifts with low RN staffing only, 1.032 (95 percent CI, 1.008 to 1.057; P = 0.01) for shifts with low nursing support only, and 1.136 (95 percent CI, 1.089 to 1.185; P < 0.001) for shifts with both low RN and nursing support staffing.
"Those are the ones that cumulative exposure lead to wrinkles and loss of elasticity the skin," she said.
Measuring rescue medication use can provide important information on the robustness of the overall analgesic effect, as effective pain medications should reduce the need for rescue medications and lower the cumulative exposure to potentially harmful side effects.

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