blood disorders. 1. carbon monoxide poisoning co binds to your hemoglobin, prevents oxygen from...
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BLOOD DISORDERS
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1.Carbon Monoxide Poisoning
CO binds to your hemoglobin, prevents oxygen from binding. Can be fatal. It is a "silent killer" as people often die in their sleep when a heater fails.
Carbon monoxide deaths are more likely to occur in winter Article from 2010, St Clair County
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2. ANEMIA
Iron-Deficiency Anemia - low iron, most
common
*treated with iron supplements
Aplastic Anemia – bone marrow does not
produce enough RBC
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Hemorrhagic anemia – due to extreme blood loss
Pernicious
anemia – B12
deficiency
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SICKLE CELL ANEMIA
Genetic Disorder
Abnormally shaped
blood cells
Parents can be
carriers
(asymptomatic)
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Symptoms:
1.Pain
2.Lethargy
3.Lifelong anemia
(low red blood count)
4.Organ failure
5.Stroke
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Leukemia
Cancer of the blood
Overproduction of wbc’s
They take the place of RBCs
Treatable with bone marrow transplants,
chemothemotherapy, radiation
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Blood Smear of a
patient with
Leukemia
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Blood Smear; Leukemia
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Leukemia is one of the most common childhood cancers. It occurs
when large numbers of abnormal white blood cells fill the bone
marrow and sometimes enter the bloodstream.
Because these abnormal blood cells are defective, they don't help
protect the body against infection the way normal white blood cells
do. And because they grow uncontrollably, they take over the bone
marrow and interfere with the body's production of other important
types of cells in the bloodstream, like red blood cells (which carry
oxygen) and platelets (which help blood to clot).
St. Jude Hospital
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4. Mononucleosis sometimes called "mono" or "the kissing disease," is an infection usually caused by the Epstein-Barr virus (EBV).
The designation "mononucleosis" refers to an increase in one type of white blood cells (lymphocytes) in the bloodstream
EBV is very common, and many people have been exposed to the virus at some time in childhood.
Article at Medicinenet
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5. Blood poisoning - Septicemia
An infection enters the bloodstream
Can be deadly
Treated with antibiotics
Also called "sepsis"
Originating from the Latin and Greek terms gangreana, gangrene literally means degradation of a part of the living body.
autoamputation
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Thrombocytopenia
Low production of Platelets
Causes bleeding or bruising
A bruise is caused when tiny blood vessels are damaged or broken as the result of a blow to the skin (be it bumping against something or hitting yourself with a hammer). The raised area of a bump or bruise results from blood leaking from these injured blood vessels into the tissues as well as from the body's response to the injury.
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7. HEMOPHILIA
This disorder causes a
failure of the blood to clot
Patients can be treated
with blood transfusions
that include clotting
agents.
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Queen Victoria
Carrier for Hemophilia
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JaundiceIn newborns, caused by the liver
not functioning fully
Secretes bilirubin into the blood
causing the yellow color
Exposure to fluorescent lights (bili
lights) will break down the
substance
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Quick Genetics ReviewA gene consists of 2 alleles (represented by letters)
One allele is usually dominant over the other
Example:
Genotype Phenotype
PP widow’s peak
Pp widow’s peak
pp straight hairline
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A person with a widow's peak (Pp) is married to a person with a straight hairline (pp), what percentage of their children will have a straight hairline?
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Two people who are both heterozygous for the widow's peak trait are married. What percentage of their children will have a straight hairline?
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Sickle Cell Anemia is actually codominant
AA = normal
Aa = sickle cell trait (few symptoms)
aa = sickle cell anemia
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If both parents are carriers, child has a ¼ chance of
having the disease
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A female has sickle cell anemia and is married to a man who appears normal. A doctor tests the man and determines that he does NOT have sickle cell trait. What is the chance that this couple will have a child with sickle cell anemia?
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What happens when a female who is a carrier marries man with sickle cell anemia?
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Hemophilia is carried on the X chromosome
Females X H X H normal
X H X h carrier
X h X h hemophiliac
Males X H Y normal
X h Y hemophiliac
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What happens when a female who is a carrier marries a normal man?
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What happens when a female who is normal marries a man who has hemophilia?