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Haemophilia - College Essay

Haemophilia


In the human body, each cell contains 23 pairs of chromosomes, one of
each pair inherited through the egg from the mother, and the other
inherited through the sperm of the father. Of these chromosomes, those that
determine sex are X and Y. Females have XX and males have XY. In addition
to the information on sex, 'the X chromosomes carry determinants for a
number of other features of the body including the levels of factor VIII
and factor IX.'1 If the genetic information determining the factor VIII and
IX level is defective, haemophilia results. When this happens, the protein
factors needed for normal blood clotting are effected. In males, the single
X chromosome that is effected cannot ...

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In most of the cases, this coagulant
protein is reduced but in a rare amount of cases, this protein is present
by immunoassay but defective.4 Haemophilia A is the most common severe
bleeding disorder and approximately 1 in 10,000 males is effected. The most
common types of bleeding are into the joints and muscles. Haemophilia is
severe if the factor VIII:C levels are less that 1 %, they are moderate if
the levels are 1-5% and they are mild if they levels become 5+%.5

Those with mild haemophilia bleed only in response to major trauma or
surgery. As for the patients with severe haemophilia, they can bleed in
response to relatively mild trauma and will bleed spontaneously.

In haemophiliacs, the levels of the factor VIII:C are reduced. If the
plasma from a haemophiliac person mixes with that of a normal person, the
Partial thromboplastin time (PTT) should become normal. Failure of the PTT
to become normal is automatically diagnostic of the presence of a factor
VIII ...

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Haemophilia. (2007, August 31). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Haemophilia/70464
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"Haemophilia." Essayworld.com. August 31, 2007. Accessed December 23, 2024. http://www.essayworld.com/essays/Haemophilia/70464.
"Haemophilia." Essayworld.com. August 31, 2007. Accessed December 23, 2024. http://www.essayworld.com/essays/Haemophilia/70464.
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PAPER DETAILS
Added: 8/31/2007 02:46:10 PM
Category: Health & Medicine
Type: Premium Paper
Words: 1118
Pages: 5

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