Hypersensitivity College Essays Samples For Students

Hypersensitivity, which is also known as hypersensitivity reaction, refers to excessive and undesirable reactions such as allergies and autoimmunity. The reactions produce discomfort, damaging, and to some extent fatal and are caused by the normal immune system. The hypersensitivity reactions are basically divided into four main types based on the mechanisms involved and the time that is taken for the reaction to manifest. These types are types I, II, III and IV (Ghaffar).
The type I hypersensitivity, also known as anaphylactic or immediate hypersensitivity and involve skin, eye, nasopharynx, and bronchopulmonary tissues. This reaction causes a number of symptoms ...

What is the possible disease process according to the client’s history?

Based on the client’s history, the patient has been experiencing frequent colds, especially in the springs and falls. This is an indication of a type of hypersensitivity to the allergens being propagated by colds and chilly conditions. On exposure to these allergens, the patient’s the body reacts with the various manifestations such as itchy eyes, nasal congestion with watery nasal discharge and a tickling cough at night which however do disappear with the elimination of the allergen,. However, upon subsequent exposure, these symptoms reoccur.

What assessment questions would be useful to ask about her medical and family history?

The nurse has to focus on an assessment of Donna’s family history ...

Introduction

Allergy is an immune system disorder. Allergy or allergic reaction is a hypersensitivity to otherwise innocuous substances present in the environment. The allergic reaction is usually a rapid response; however, the sensitivity to certain allergens can be acquired over a period. It was previously called the type one hypersensitivity. It is characterized by an over activation of leucocytes, called the mast cells and the basophils following activation of immunoglobulin E (IgE) (Frigas, Gleich 1986). This activation of the basophiles and mast cells triggers an inflammatory response.

Pathophysiology of the allergic response

The type 1 hypersensitivity reaction is initiated when an allergen is introduced to the atopic individual, ...

With more than 25 percent of the world’s population reportedly suffering from allergic-reaction related conditions, allergy is increasingly becoming one of the world’s widespread conditions. Oft marked with a characteristic features such as itching, sneezing and vasodilatation, an allergy, according to Ahmed (2011), is an overreaction of an individual’s immune system to a substance (allergen) which does not usually cause any reaction to other people. Such an overreaction occurs when the body recognizes a substance as foreign thereby inducing an immune response marked with the production of antibodies.

Mechanism of an Allergic Reaction

An allergic response, as affirmed by Ahmed (2011), can conveniently be ...

Assignment 2

PART A - (Total 15 marks)

Cephalexin and Gentamicin
The mechanism of action of amoxicillin is focused on the prevention of the synthesis of the bacteria’s cell wall through the binding and inhibiting of the cell wall transpeptidases (Katzung, Masters, and Trevor, 2012). Specifically, it attaches to the penicillin-binding protein 1A found in the cell wall of bacteria. Then, the agent disintegrates the lactam ring to allow the acylation of the penicillin-sensitive transpeptidase C-terminal domain. The formation of the cross-link of the linear peptidoglycan strands is prevented by the inactivation of transpeptidases. Since the third and last stage ...

Introduction

Most of us have faced moments when we were not able to concentrate on the work on hand. There were times when focusing on a task was a big challenge. However, for most of us this type of syndrome is not very common. However, for some people these types of behaviors are a day-to-day affair. For those people this type of syndrome is uncontrollable and persistent. If a person shows such signs then they may be a victim of attention deficit hypersensitivity syndrome. Attention Deficit Hypersensitivity Syndrome (ADHD) does not show any physical signs or cannot be detected using laboratory tests. The symptoms of ...

Introduction

Most of us have faced moments when we were not able to concentrate on the work in hand. There were times when focusing on a task was a big challenge. However, this type of syndrome is not very common for most of us, but some people show this kind of behavior on a day to day basis. For those people showing the lack of concentration and inattentiveness on a regular basis, this type of syndrome becomes uncontrollable and persistent. Any person showing such signs may be a victim of attention deficit hypersensitivity syndrome. Attention Deficit Hypersensitivity Syndrome (ADHD) does not show any physical signs ...

A pesticide is a contraction that is used to describe various agents, which are categorized based on their ability to kill living beings. These include herbicides, insecticides, as well as fungicides. Even though the utilization of pesticides has duplicated each ten years from 1945, pest destruction to crops is more widespread now than it used to be. Several pests are now resistant to pesticide because of the omnipresent pesticides’ presence in the environment. Residues of chlorinated pesticide are there in the soil, air, and water, with a co-occurrence presence in human beings. Carbamate as well as Organophosphate pesticides, the compounds that ...

Immunoglobulins (Ig) are also known as antibodies and they have molecular weights between 160000 and 970000 (Guyton, 2006, p. 443). They are key components of the vertebrate immune system and are a part of the humoral immune system, forming the base of the B-Cell. Igs function in cell-cell recognition as well as structural organization and regulation of musucle (Harpaz, Chothia, 2004). All Igs are made up of a light and a heavy polypeptide chain, usually two of each, but they may contain many more (Guyton, 2006, p. 443). They contain discrete domains of approximately 100 amino acids that are divided into categories ...

1. Introduction

According to the Food and Agriculture Organization of the United Nations (2010), nearly one billion people suffered from hunger in 2010, representing nearly 16% of the population of developing countries. At the same time, the world population is growing and global warming threatens the production of crops. Profound changes are needed in the way that food production and food consumption are perceived, or the world may face mass starvation. Genetically modified (GM) technology has been found capable of feeding the world but there are concerns regarding its safety (Moseley 2002, Carpenter 2010). Consumer acceptance of GM foods in the ...

1. Introduction

1.1 Perception of GM foods in the UK
According to the Food and Agriculture Organization of the United Nations (2010), nearly one billion people suffered from hunger in 2010, representing nearly 16% of the population of developing countries. At the same time, the world population is growing and global warming threatens the production of crops. Profound changes are needed in the way that food production and food consumption are perceived, or the world may face mass starvation. Genetically modified (GM) technology has been found capable of feeding the world but there are concerns regarding its safety (Moseley 2002, ...