Mean corpuscular volume (MCV) laboratory test, as part of a standard complete blood count (CBC), is used along with other RBC indices (MCH and MCHC) to help classify the cause of anemia based on red cell morphology.
In this manner, what does it mean to have a low mean corpuscular volume?
Low MCV. The MCV will be lower than normal when red blood cells are too small. This condition is called microcytic anemia. Microcytic anemia may be caused by: iron deficiency, which can be caused by poor dietary intake of iron, menstrual bleeding, or gastrointestinal bleeding.
What does it mean when your MCH is high?
High MCH scores are commonly a sign of macrocytic anemia. This condition occurs when the blood cells are too big, which can be a result of not having enough vitamin B12 or folic acid in the body.
MPV gives your doctor information about platelet production in your bone marrow. • Mean corpuscular volume (MCV) is a measurement of the average size of your RBCs. The MCV is elevated when your RBCs are larger than normal (macrocytic), for example in anemia caused by vitamin B-12 deficiency.
The reference ranges for mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration are as follows: MCH: 27-33 picograms (pg)/cell in adults. MCHC: 33-36 g/dL in adults.
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)
What Low MCH Test Results Can Indicate. MCH levels below 26 pg are considered abnormally low. Common causes of Low MCH results include blood loss, iron deficiency and microcytic anemia, which is a condition in which red blood cells are abnormally small, carrying less hemoglobin.
Red blood cell (RBC) indices are part of the complete 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)
A white blood cell (WBC) count is a test that measures the number of white blood cells in your body. These cells help fight infections by attacking bacteria, viruses, and germs that invade the body. White blood cells originate in the bone marrow but circulate throughout the bloodstream.
Mean platelet volume (MPV) is a machine-calculated measurement of the average size of platelets found in blood and is typically included in blood tests as part of the CBC. Abnormally low MPV values correlate with thrombocytopenia when it is due to impaired production as in aplastic anemia.
Other people may develop noticeable symptoms, including:
- weakness and fatigue.
- shortness of breath.
- pale skin and gums.
- fast or irregular heartbeat.
- cold hands or feet.
- dizziness or headache.
- lack of concentration.
- chest pain.
Microcytic anemia is defined as the presence of small, often hypochromic, red blood cells in a peripheral blood smear and is usually characterized by a low MCV (less than 83 micron 3). Iron deficiency is the most common cause of microcytic anemia.
Low MCHC values occur if you have anemia due to iron deficiency. It can also indicate thalassemia. This is an inherited blood disorder in which you have fewer red blood cells and less hemoglobin present in your body. If your MCHC value is above 35.5 grams per deciliter, you have high MCHC.
Mean corpuscular haemoglobin concentration (MCHC) is the average concentration of haemoglobin in red blood cells. It is a value you will see reported as part of a Full Blood Count (FBC) test. MCHC is one of the red blood cell (RBC) indices, and it is used to help diagnose the type, cause, and severity of anaemia.
High. In pernicious anemia (macrocytic), MCV can range up to 150 femtolitres. An elevated MCV is also associated with alcoholism (as are an elevated GGT and a ratio of AST:ALT of 2:1). Vitamin B12 and/or folic acid deficiency has also been associated with macrocytic anemia (high MCV numbers).
High RDW count. If results are above the normal range, this is known as a high RDW count. It can indicate: Macrocytic anemia. This is characterized by red blood cells that are larger than average.
A macrocytic class of anemia is an anemia (defined as blood with an insufficient concentration of hemoglobin) in which the red blood cells (erythrocytes) are larger than their normal volume. The normal erythrocyte volume in humans is about 80 to 100 femtoliters (fL= 10−15 L).
MCH value is diminished in hypochromic anemias. It is calculated by dividing the total mass of hemoglobin by the number of red blood cells in a volume of blood. A normal value in humans is 27 to 31 picograms/cell. Conversion to SI-units: 1 pg of hemoglobin = 0.06207 femtomol.
Primary thrombocytosis, also known as essential thrombocythemia (or ET), is a disease in which abnormal cells in the bone marrow cause an increase in platelets. The cause is unknown. Secondary thrombocytosis is caused by another condition the patient may be suffering from, such as: Anemia due to iron deficiency.
Lymphocytes are an important part of the immune system. They help fight off diseases, so it's normal to see a temporary rise in the number of lymphocytes after an infection. A count significantly higher than 3,000 lymphocytes in a microliter of blood is generally considered to be lymphocytosis in adults.
The MCH is a calculated value derived from the measurement of hemoglobin and the red cell count. (The hemoglobin value is the amount of hemoglobin in a volume of blood while the red cell count is the number of red blood cells in a volume of blood.) It is a standard part of the complete blood count.
What is a red blood cell count? A red blood cell count is a blood test that your doctor uses to find out how many red blood cells (RBCs) you have. It's also known as an erythrocyte count. The test is important because RBCs contain hemoglobin, which carries oxygen to your body's tissues.