Comme on voit sur la branche

Disponible uniquement sur Etudier
  • Pages : 18 (4403 mots )
  • Téléchargement(s) : 0
  • Publié le : 15 octobre 2010
Lire le document complet
Aperçu du document
ferritin test,
a blood test used to determine available iron stores in the body. It is used to diagnose iron deficiency anemia, and when combined with the serum iron level and total iron-binding capacity tests, can differentiate and classify various kinds of anemias.
Mosby's Medical Dictionary, 8th edition. © 2009, Elsevier.

iron saturation,
the capacity of iron to saturate transferrin,measured in the blood to detect iron excess or deficiency. The normal iron saturation capacity in serum is 20% to 55%. See also total iron.
Mosby's Medical Dictionary, 8th edition. © 2009, Elsevier.

Anemia Causes and Risk Factors
What is Anemia?
Causes and Risk Factors

What is anemia?

All organs, tissues and cells require oxygen to live and functionproperly. Anemia is a condition of low levels of healthy red blood cells and oxygen and can be generally defined as a decrease in the amount of health blood cells to carry sufficient amounts of oxygen to all parts of the body. In fact, people with anemia do not get enough oxygen delivered to various areas of the body. This results in symptoms such as fatigue and weakness, and is why prolonged anemia cancause damage to the heart and other organs.

But what causes anemia?  And who is more at risk of developing anemia? Although there are many reasons anemia can develop blood loss, high rates of red blood cell destruction or lack of red blood cell production are the main causes of anemia.  Click here to learn more about which medical conditions can cause these factors, plus who is at risk ofdeveloping anemia in the what causes anemia section next.

Causes of anemia

There are many reasons anemia can develop. However, anemia has three main causes:

1. blood loss
2. high rates of red blood cell destruction
3. lack of red blood cell production
These causes may be due to a number of diseases, conditions, or other factors. The following conditions can contribute to causeanemia:

← blood loss
← exposure to toxic chemicals ( to include some medications)
← inherited conditions from passed down from one generation to the next
← long-term infections
← long-term or serious illnesses
← nutritional deficiencies

Risk factors

There are certain risk factors that make it more likely that a person develops anemia. Risk factors may notbe a direct cause of a particular disease, but seem to be associated with its development in some way. A person has a higher-than-average risk of developing anemia if s/he has:

← diets low in iron, vitamins and/or minerals
← family history of inherited anemia (sickle cell anemia or thalassemias)
← injury
← menstruation
← other medical conditions: kidney disease, cancer,diabetes, rheumatoid arthritis, HIV/AIDS, inflammatory bowel disease , liver disease, heart failure and thyroid disease
← parasitic infections
← radiation or chemotherapy
← surgery
People with anemia risk health problems that can become serious quickly. When a lot of blood is lost within a short time, for example, blood pressure and the amount of oxygen in the body can dropsuddenly, causing severe symptoms that can lead to heart failure or death. But what are the symptoms of anemia? And when should someone with anemia seek medical help? The next section describes some of the symptoms of anemia, how they can be identified as well as how people may feel when they become anemic.

Anemia Symptoms

People with mild anemia may not experience any symptoms, or the symptoms maybe so mild that they are not noticeable. For many people, anemia symptoms develop slowly. This is because the body adapts to the condition and reduces the effect of symptoms. As anemia becomes more severe, however, the body can no longer compensate and the symptoms may become more noticeable. Or if anemia develops rapidly, such as during a case of blood loss ( i.e., traumatic injury) you may...
tracking img