Dah 2 hari aku dok wat research kenapa aku bleh syak kena talasemia hatta HB aku konsisten 12 ke atas.setelah surf internet and belek2 lab test report,baru la aku tau kenapa aku disyaki menghidap talasemia..berikut adalah info mengenai ujian darah dan bagaimana darah aku bleh ade tanda2 talasemia..
RBC indices
URL of this page: http://www.nlm.nih.gov/med lineplus/ency/article/0036 48.htm
Red blood cell (RBC) indices are part of the complete blood countcomplete blood count (CBC) test. They are used to help diagnose the cause of anemia, a condition in which there are too few red blood cells.
The indices include:
•Average red blood cell size (MCV)
•Hemoglobin amount per red blood cell (MCH)
•The amount of hemoglobin relative to the size of the cell (hemoglobin concentration) per red blood cell (MCHC)
•Hemoglobin amount per red blood cell (MCH)
•The amount of hemoglobin relative to the size of the cell (hemoglobin concentration) per red blood cell (MCHC)
How the Test is Performed
Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.
Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm.
Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.
In infants or young children, a sharp tool called a lancet may be used to puncture the skin and make it bleed. The blood collects into a small glass tube called a pipette, or onto a slide or test strip. A bandage may be placed over the area if there is any bleeding.
The values for MCHC, and MCH are calculated from the hemoglobin (Hgb), hematocrithematocrit (Hct), and RBC count:
•MCHC = Hgb/Hct
•MCH = Hgb/RBC count
The MCV is measured directly by a machine.
How to Prepare for the Test
No special preparation is necessary.
How the Test Will Feel
When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging sensation. Afterward, there may be some throbbing.
Why the Test is Performed
RBCs transport hemoglobin which, in turn, transports oxygen. The amount of oxygen tissues receive depends on the amount and function of RBCs and hemoglobin.
RBCs transport hemoglobin which, in turn, transports oxygen. The amount of oxygen tissues receive depends on the amount and function of RBCs and hemoglobin.
The MCV reflects the size of red blood cells. The MCH and MCHC reflect the hemoglobin content of red blood cells. These RBC measures are used to diagnose types of anemia.
Anemias are defined based on cell size (MCV) and amount of Hgb (MCH).
•MCV less than lower limit of normal: microcytic anemia
•MCV within normal range: normocytic anemia
•MCV greater than upper limit of normal: macrocytic anemia
•MCH less than lower limit of normal: hypochromic anemia
•MCH within normal range: normochromic anemia
•MCH greater than upper limit of normal: hyperchromic anemia
Normal Results
•MCV: 80 to 100 femtoliter
•MCH: 27 to 31 picograms/cell
•MCHC: 32 to 36 grams/deciliter
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What Abnormal Results Mean
This test is used to diagnose the cause of anemia. The following are the types of anemia and their causes:
•Normocytic/normochromic (NC/NC) anemia is caused by sudden blood loss, prosthetic heart valvesprosthetic heart valves, sepsissepsis, tumor, long-term disease or aplastic anemiaaplastic anemia.
•Microcytic/hypochromic anemia is caused by iron deficiency, lead poisoning, or thalassemia.
•Microcytic/normochromic anemia results from a deficiency of the hormone erythropoietinerythropoiet
•Macrocytic/normochromic anemia results from chemotherapychemotherapy, folate deficiencyfolate deficiency, or vitamin B-12 deficiencyvitamin B-12 deficiency.
Risks
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.
Other risks associated with having blood drawn are slight but may include:
•Excessive bleeding
•Fainting or feeling light-headed
•Hematoma (blood accumulating under the skin)
•Infection (a slight risk any time the skin is broken)
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Mengikut lab test report yg aku dpt:
RBC or Red Blood Count aku lebih tinggi dari biasa.
MCV or Mean Cell Volume aku lebih rendah dari biasa.
MCH or Mean Cell Hemoglobin aku juga dari biasa.
Jadi kemungkinan bila MCV + MCH rendah boleh menyumbang ke arah iron deficiency,lead poisining or thalassemia.
Harap blood test next week bacaan normal..Ya ALLAH,jauhkanlah penyakit berbahaya dari kami..AMIN..
RBC or Red Blood Count aku lebih tinggi dari biasa.
MCV or Mean Cell Volume aku lebih rendah dari biasa.
MCH or Mean Cell Hemoglobin aku juga dari biasa.
Jadi kemungkinan bila MCV + MCH rendah boleh menyumbang ke arah iron deficiency,lead poisining or thalassemia.
Harap blood test next week bacaan normal..Ya ALLAH,jauhkanlah penyakit berbahaya dari kami..AMIN..