Cystic Fibrosis

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College of Science, Technology & Applied Arts of Trinidad & Tobago

DEPARTMENT OF INFORMATION SCIENCE AND TECHNOLOGY

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INDIVIDUAL ASSIGNMENT COVER PAGE

ASSIGNMENT TITLE:ESSAY

ASSIGNMENT SUBTITLE:CYSTIC FIBROSIS

COURSE CODE:BIOL 172

COURSE TITLE:STRUCTURE AND FUNCTION OF THE HUMAN BODY II

CRN:12495SEMESTER:

STUDENT NAME:

STUDENT ID:

PROGRAMME:BSC GENERAL NURSING

DATE OF SUBMISSION:27-11-2012

LECTURER’S NAME:JO ELLEN COLE
Cystic fibrosis is an inherited gene caused by a defective gene, which affects tissues that produce mucous secretions. Cystic fibrosis affects organs like the lungs, the gastrointestinal tract, the pancreas and the liver. Cystic fibrosis can also affect the sweat glands and the male reproductive system. In cystic fibrosis, exocrine glands make thick, sticky mucus. Exocrine glands normally make thin slippery secretions like sweat, mucus, tears, saliva and digestive juices. The mucus plugs are most often in the lungs and intestines and can cause problems with breathing and digestion. Cystic fibrosis does not affect the endocrine glands because the endocrine glands produce hormones that pass in the blood. Most people think that cystic fibrosis is contagious but it is not contagious. They say it is contagious because you cough a lot but it is something you are born with. Cystic fibrosis is one of the most common genetic disorders in Caucasians. This disease is occurs in one of every 3200 live Caucasians births.

Every child born with cystic fibrosis was born with it because it is a genetic disease started at conception. The age in which signs and symptoms start varies based on the person. In some children the lungs are impaired in others the digestive system is affected. Conception is when the father’s sperm and the mother’s egg joins. Both the egg and the sperm have thousands of genes. The genes decide the traits like eye and hair color, height, facial features and health conditions. Every human being have seven or eight genes that are connected with serious health problems. As a parent you cannot control what genes you passed to your child.

PATHOPHYSIOLOGY
Cystic fibrosis (CF) is an inherited multisystem disorder of children and adults, characterized chiefly by obstruction and infection of airways and by maldigestion and its consequences. CF is inherited as an autosomal recessive trait. The CF gene codes for a protein of 1,480 amino acids called the CF trans membrane regulator (CFTR). SIGNS AND SYMPTOMS

The type and severity of cystic fibrosis varies from person to person. * Salty tasting skin
* Slow weight gain even with a good appetite
* Abnormal bowel movements
* Wheezing
* Coughing
* Increased lung mucous
* Pneumonia
* Nasal polyps- small fleshy growths in the nose
* Clubbing- enlargement of the fingertips and nose
* Rectal prolapse- the rectum sticking out the anus
* No bowel movements in the first 24-48 hours of life
* Increased gas, bloating, or a belly that appears swollen (distended) * Nasal congestion caused by nasal polyps
* Infertility (in men)
* Repeated inflammation of the pancreas (pancreatitis)
* Respiratory symptoms
* Due to losing a lot of salts tiredness, weakness, fever, muscle cramps and dehydration occurs * Delayed growth

Humans have 23 pairs of chromosomes made of the inherited genetic chemical deoxyribonucleic acid (DNA). The CF gene is found on chromosome number 7. It takes two copies of a Cystic Fibrosis gene one inherited from each parent for a child to show symptoms of Cystic Fibrosis. People born with only one CF gene (inherited from only one parent) and one normal gene are CF carriers. CF carriers do not show CF symptoms themselves, but can pass the problem CF gene to their children. DIAGNOSIS

Some genetic problems can be detected before birth; cystic fibrosis is one of them....
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