Hematologist
Hematologists are physicians who specialize in diagnosing and treating ailments related to blood, and blood systems such as bone marrow, vascular systems etc. They deal with conditions such as anemia, leukemia etc. Hematologists should be strong in the field of internal medicine, anatomy, physiology, and bio-chemistry too. A hematologist completes medical school and undergoes internship for three years in the field of internal medicine and further specializes for two years in the field of hematology. Few hematologists are also trained oncologists, who treat problems related to blood cancer. Hematologists are specialists in treating blood disorders and anything to do with blood. They
Interpret blood test results by studying the blood films and bone marrow films under the microscope.
Treat blood disorders like hemophilia.
Treat cancerous conditions linked to the blood like leukemia, lymphoma etc.
They deal with blood transfusion sciences etc.
They deal with bone marrow aspirations, bone marrow biopsy, chemotherapy etc. in a few cases they also prescribe medications for anemia etc.
Hematologists handle computerized diagnostic equipments and complicated bio-chemical analyses with proficiency and ease.
Modern techniques used in the field of hematology
Diagnostic equipments with latest computer technology helps in drawing clear conclusions on the disorders of the blood.
Various bio-chemical analyses help in understanding the condition of the blood and related problems in a better manner.
Bone marrow biopsy
Bone marrow biopsy is a technique to remove a small section of the tissue from the body to study it under the microscope for any further analysis and tests. This test is recommended by doctors if they see an abnormal result in the complete blood count of a person or for examining any other regular disease that might be present in the bone marrow. Bone marrow biopsies are used to check for blood disorders like leukemia, certain types of anemia or problems affecting the bone marrow such as multiple myeloma or polycythemia vera. Besides they can throw light on any infections or cancers that are originating in the bone marrow. A bone marrow biopsy aids in studying abnormal appearance and numbers of red blood cells, white blood cells or platelets in conditions such as thrombocytopenia. It is essential to keep the health care provider of any medications that are taken. A local anesthetic is usually given to numb the skin. A sedative may be prescribed to calm the patient throughout the bone marrow biopsy procedure.
Samples are usually taken from the hip bone after cleaning the area.
A biopsy needle is inserted into the bone.
Core of the needle is removed and the needle is turned in both the directions thus forcing a small sample of the bone marrow into the needle.
The needle is removed from the site and pressure is applied on that area to restrict bleeding and the area is bandaged.
There might some discomfort after the biopsy needle is removed as the anesthesia effect cannot reach the bone interiors.
Bone marrow biopsy will take about 20 minutes and after the biopsy you may be asked to lie down for another 60 minutes to check for bleeding from the site.
Results of bone marrow biopsties are available after 1 to 3 days. Normal results are indicated by normal numbers of mature and growing bone marrow cells. Abnormal results of a bone marrow biopsy are indicated by abnormal appearance of normal numbers of mature and growing bone marrow cells and presence of fibrous tissue in the bone marrow. There may be special stains that confirm infection in the bone marrow.
Anemia
Anemia stands for 'without blood' in Greek. When the number of red blood cells (RBC) falls below normal, Anemia is a resultant condition. Hemoglobin is an important constituent of RBC. Hemoglobin usually occurs in the range of 12 and 18 g/dL (grams per deciliter of blood). If the hemoglobin levels show a decrease, anemic conditions set in. Consequently, the various organs and tissues of the body do not receive adequate oxygen on account of the diminished oxygen carrying capacity of the blood. This impairs their normal functioning. Usually women have smaller stores of iron than men. Besides, they also lose blood during menstruation making them primary targets for anemia.
It is essential to be familiar with the typical symptoms of anemia. Often anemia is misdiagnosed and left untreated. An anemic person is likely to feel extremely tired and weak. This is accompanied with dizziness and breathlessness. A person suffering from anemia tends to appear pale and experience feelings of depression. In some cases, anemia can lead to heart ailments too.
Causes of Anemia
Serious disease or infection such as hookworm infection, bleeding piles, esophagel varices and peptic ulcers
Hemorrhagic - Excessive blood loss due to surgery, menstruation or injury
Genetic defects lead to sickle cell anemia, Thalassemia anemia and aplastic anemia
Hemoiytic - Excessive intravascular blood destruction where red blood cells are destroyed prematurely
Types of Anemia
Iron deficiency Anemia - Nearly 20% adult women tend to suffer from this form of anemia. Loss of blood due to menstruation is not compensated with an iron-rich diet Pregnancy and breast feeding can also deplete iron stores. Iron deficiency anemia is also noticed during growth spurts or internal bleeding.
Aplastic anemia - When the bone marrow does not produce sufficient quantities of blood cells, aplastic anemia is noticed. Childhood cancers such as leukemia are often responsible for this form of anemia. Other possible causes of aplastic anemia are radiation, cancer or antiseizure medications and chronic diseases such as thyroid or kidney malfunction. Treatment for aplastic anemia involves blood transfusions and bone marrow transplant. This is done to replace malfunctioning cells with healthy ones.
Vitamin deficiency anemia - Low levels of folic acid lead to faulty absorption of iron. Anemia caused due to folic acid deficiency is called megaloblastic anemia. Pregnancy doubles the body requirements of folic acid and it is imperative that pregnant women take folic acid supplements. Good dietary sources of folate are fresh fruits, green leafy vegetables, cruciferous vegetables, liver and kidney, dairy products and whole grain cereals. Vegetables should be eaten raw or lightly cooked.Folic acid anemia is also a common problem faced by alcoholics. Vitamin B-12 deficiency can lead to a condition of pernicious anemia. Diseases such as thyroid malfunction or diabetes mellitus can affect the body's ability to absorb vitamin B-12. This vitamin is vital in the production of hemoglobin.
Sickle cell anemia - Sickle cell anemia is a condition where the red blood cells change shape, from their original flexible round shape to a sickle or crescent shape. These irregular blood cells do not move smoothly. Instead they clog blood cells on account of their shape and consequently there is deprived oxgyen to various body parts. This blood disorder is genetic in origin and is found more predominantly in people of African, Mediterranean or Middle Eastern ancestry.
Thalassemia anemia - Thalassemia or Cooleys Disease is a heriditary disorder found predominantly in people of South East Asian, Greek and Italian racial groups. This form of anemia is seen in differing degrees as Thalaseemia encompasses a group of related disorders that affect the human body in similar ways. The most common occurences of Thalassemia are alpha and beta thalassemia. Thalassemia anemia is symptomized by jaundice, enlarged spleen, shortness of breath and facial bone deformities.
Diagnosing Anemia
A complete blood count test will test for hemoglobin levels and display an anemic condition. But often anemia is a symptom whose cause lies deeper. The cause and type of anemia will determine the treatment that is needed. A stool test will help in detecting occult blood. Hemoglobin electrophoresis is a blood test that helps identify abnormal hemoglobins. Diagnosing thalassemia or sickle cell anemia becomes possible with this test.
Treating Anemia
Deficiency can be treated with supplements of iron, Vitamin B-12 and Vitamin C. Partaking an iron-rich diet can be beneficial for those suffering from nutritional deficiency anemia. Seafood, nuts, whole grains and dried fruits such as raisins, prunes and apricots are rich in iron. Ensure adequate consumption of Vitamin C as it aids and stimulates iron absorption. Try and combine citrus foods with iron-rich foods - add tomatoes to a turkey sandwich or chopped strawberries with iron-fortified breakfast cereals.
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