Hypersensitivity - Essay Example

Extract of sample

On the other hand, simple organic substances are more commonly known to cause delayed reactions. An individual may be exposed to these allergens through inhalation, ingestion, injection, or skin contact. (Porth, 2002)
The classifications of hypersensitivity are not dependent on severity, but the type of cells, and location of tissues that is affected. Hypersensitivity reactions are classified into four types: type I (mediated by IgE), type II (tissue-specific), type III (immune-complex mediated), and type IV (cell-mediated) (Holmes, 2003). The first three types are mediated by antibodies, and the fourth type is mediated by T-cells, which produce a delayed reaction or onset of symptoms. However, it is seldom that one type occurs in isolation from the other (Nowak & Handford, 2004).
During a hypersensitivity reaction or allergic reaction, an individual is usually prescribed with bronchodilators, steroids, and antihistamines. This paper will discuss type I hypersensitivity or anaphylactic hypersensitivity, as well as the pharmacokinetics and pharmacodynamics of the three agents mentioned above. In addition, Chinese herbal medicines will also be briefly discussed.
This type describes the allergy as the immediate hypersensitivty or anaphylactic hypersensit ...
Download paper


Hypersensitivity is used to describe the adverse reactions of the immune system to different allergens or substances. It is an abnormal condition typified by an overstressed and inapproporiate response of the immunse system to a second exposure to antigen or allergen (Allen et al., 2002; Holmes, 2003)…
Author : oziemann
Download 1

Related Essays

Air Quality and Environmental Health
Indoor smoke from solid fuels and unsafe water, sanitation and hygiene are main causes of 580,000 deaths per year. Urban air pollution and exposure to lead and other pollutants are responsible for 405, 000 deaths (World Health Organization, 2005). Studies from the United States and Europe show that persons in an industrialized nation spend more than 90 percent of their time indoors. The indoors however cannot be rendered safer than outdoors since concentration of airborne substances indoors exceed those outdoors. Individuals exposed to it develop chronic diseases more so for those living in...
3 pages (753 words) Essay
Occupational Asthma
OA is a disease characterized by variable obstruction of airflow and/or airway hyperresponsiveness attributable to factors associated with the workplace rather than to stimuli found outside that environment. (Nicholson, 2002)
21 pages (5271 words) Essay
Antihypertensive and antilipidemic medications
7. Follow up will include Re-appointment in one month for repeat labs and then in three months for follow up. Labs to repeat will be renal panel, liver panel and Hgb. as well as K. If patient is diabetic HA1c.
2 pages (502 words) Essay
T cellB cell collaboration in the immune response to infection
It is referred to as "non-specific" because it generally attempts to stop the spread of all types of invaders. (Kuby, 1996)
8 pages (2008 words) Essay
Hydrocodone (Vicodin)
This medicine should not be taken with the Alcohol or CNS depressant as it very dangerous from health point of view. Hydrocodone may be habit forming. Patients should stop using as soon as the prescribed period got over.
2 pages (502 words) Essay
There is no antibody production. There is destruction of the tissues involved and the organs fail to maintain their normal function.
2 pages (502 words) Essay
Using specific examples, compare how inflammatory and hypersensitive reactions to parasites can be a defence of the hosts against the parasites and also a disease problem for the hosts.
2007] The parasites discussed here mostly refer to helminths, protozoa and arthropods. Inflammation is ‘’a protective response of the animal host caused by cell injury and tissue damage, aiming to eliminate the cause of cell injury and to wall off and remove the injured tissue.’ [Blood et al. 2007] Cardinal signs of inflammation include the triple response – heat, redness and swelling; and also pain and loss of function. Hypersensitivity is a modified and exaggerated immune reaction of the body to a foreign antigen and is the same as allergy. [Blood et al. 2007] There are different...
8 pages (2008 words) Essay
Got a tricky question? Receive an answer from students like you! Try us!