Speed of blood deposition
Erythrocyte Sedimentation Rate is a laboratory test that the doctor requires to detect an inflammatory activity in the body, but not only is the result of this test alone, nor is the diagnosis of disease dependent, but this examination gives the doctor an idea of the progression of the disease And the development of inflammation activity, and can help the doctor to arrive at the correct diagnosis, and the principle of this examination based on the withdrawal of a blood sample from the patient, and then put the blood drawn in a thin tube, and measure the speed of deposition of red blood cells at the bottom of the tube, Faster when there is an inflammatory activity within the body, where TS B inflammation and infection are abnormal proteins in the blood, leading to the pool of red blood cells, and deposition more quickly if it is a single,
There are also reasons that lead to blood deposition at a slower rate than normal. For these reasons, the number of red blood cells or the number of white blood cells increases, and the presence of abnormal proteins in the blood can cause blood deposition.
Reasons for Requesting Rapid Screening of Blood Deposition
The doctor asks to check the speed of blood deposition because the examination can give an idea of the following:
- The presence of inflammation or infection within the patient’s body, where the doctor asks for this examination if the patient suffers, for example, from muscle pain or fever, or some types of arthritis, and in the case of autoimmune disease in the patient, or any type of cancer.
- The usefulness of the treatment in which the patient is treated.
- Progressive follow-up and exacerbation of the disease.
Preparations for blood velocity screening
The doctor asks to stop taking some medications for a temporary period until the examination. Because there are many medications that can affect the reading of the test, including methadone, phenothiazines, prednisone, and Aspirin if It should be taken at high doses, and phenytoin and valproic acid should be discontinued. Tell your doctor if you are taking any hormonal medication, as all of these drugs may affect your reading.
As for any examination, it is like any traditional blood test. The skin is sterilized in the arm area before inserting the needle into the skin to take blood from the vein. The person does not need to fast before the examination.
It is worth mentioning that there are other things that can affect the result of the examination, including pregnancy and the examination during the days of the menstrual cycle, and if the person suffers from anemia, all these things affect the result of the examination of the speed of blood deposition.
There is no risk in checking the speed of blood deposition, it is a normal blood test, but it can cause complications in some people, including bleeding from the location of the needle, inflammation of the vein, and the occurrence of a bruising or blood tumor in the place of blood extraction, and some patients may feel weak The sensation of dizziness due to the needle and the withdrawal of blood.
Natural values for checking blood deposition velocity
The blood flow rate is measured in millimeters per hour, and the normal proportions vary according to the person’s sex and age. The normal rate of blood drop in the test tube is within one hour:
- Less than 15 mm / h when males are under 50 years of age.
- Less than 20 mm / h when males are older than fifty years old.
- Less than 20 mm / h in adult females under age 50.
- Less than 30 mm / h in adult females aged over fifty years.
- 0 -2 mm / hr in newborns.
- 3- 13 mm / hr in children up to puberty.
Causes of increased and decreased blood deposition velocity
There are many reasons to increase the speed of blood deposition or decrease, the reasons that lead to increased speed of blood deposition include:
- Infections, including injury to the bone, heart, or heart valves or skin infection, can also cause tuberculosis to increase the speed of blood deposition, in addition to pneumonia and appendicitis.
- Immunologic diseases that lead to increased blood velocity are systemic systemic lupus erythematosus and rheumatoid arthritis.
- anemia.
- College diseases.
- Diseases of the thyroid gland.
- Cancer. Examples of cancers that lead to increased blood flow are lymphoma or multiple cell myeloma.
- Inflammation of blood vessels.
- Aging.
- Pregnancy.
- Causes of low blood flow include:
Checks may be requested by the doctor with a check the speed of blood deposition
The doctor’s request to check blood deposition speed may also be associated with other tests, including:
- C – Reactive Protein Analysis and CRP.
- Antinuclear Antibodies (ANA).
- Rheumatoid Factor (R).