A high RDW blood test result may indicate anemia due to either iron deficiency or a deficiency of folate and vitamin B12, according to Wikipedia. It may also be a result of a recent hemorrhage. False high RDW readings sometimes occur when the wrong type of blood is used for the test. As MedFriendly explains, other causes for a high RDW test result include liver disease and hemolytic anemia.Continue Reading
An RDW test is a test of red cell distribution width, and it measures the variation in the size of red blood cells. According to MedFriendly, this test is often done in conjunction with measuring the mean corpuscular volume, or MCV, of the red blood cells. The MCV is the average amount of space that each cell takes up within the bloodstream.
A comparison of the RDW and MCV measurements helps to determine what type of anemia a person is experiencing. When anemia is present and RDW and MCV are both high, anemia is typically due to folate and vitamin B12 deficiency. As Health Research Funding explains, red blood cells increase in size due to B12 and folate deficiency, raising the MCV. When RDW levels are high but MCV levels are not, the cause is more likely iron-deficiency anemia. In iron-deficiency anemia, a lack of iron in the blood causes a decrease in hemoglobin, which is the substance in red blood cells that carries oxygen.Learn more about Diagnostics & Imaging
A PSA blood test is commonly used to predict, diagnose and monitor the presence of prostrate cancer in men. "PSA" stands for "prostrate-specific antigen," a protein produced exclusively by the male prostrate gland. PSA blood tests measure levels of this protein in the bloodstream, according to HealthCentral.Full Answer >
Low MPV in a blood test means a person's mean platelet volume is lower than normal, according to WebMD. Mean platelet volume refers to the average size of the platelets in the blood.Full Answer >
An RDW test is a red cell distribution width test, which is one of the parameters measured in blood tests, states Medscape. Higher RDW results mean that the patient's red blood cells have a greater variation in size or volume.Full Answer >
On blood test results, "RDW" stands for red cell distribution width, which shows the variation in the size of red blood cells, according to the Mayo Medical Laboratories. This measurement is often used to help diagnose specific types of anemia.Full Answer >