A complete blood count (CBC) is a commonly performed blood test that can help determine the general health of a person, as well as determine various blood components. Mean platelet volume (MPV), which is the average size of platelets in the blood, is another important measurement that is reported in most CBC reports.
What Is a CBC Test?
A complete blood count tests different components of blood, including red blood cells, white blood cells, haemoglobin, hematocrit and platelets. The MPV in a CBC test will help to provide information on the CBC MPV levels of the blood cells, but will not be able to diagnose all the conditions on its own. Medical specialists consider individual measurements, medical history, symptoms and other tests whether an abnormal result should be considered.
What Does MPV Stand For?
MPV stands for mean platelet volume. It is a test of the average size of tiny components in the blood known as platelets that prevent bleeding by developing clots. The platelets are produced in the bone marrow and circulate through the blood until they are needed to support the formation of a clot.
The phrase What is MPV in a CBC test refers to understanding this measurement within a complete blood count report. Platelet size may give some hints about platelet production as well as turnover, but MPV alone cannot be used as confirmation of a given disorder or the efficiency of platelet function.
Normal MPV Range
Laboratories have varying MPV blood test normal ranges due to differences in the testing equipment, methods and reference populations. An approximate adult range of 7–12 femtolitres (fL) is used in many laboratories, but the specific interval printed on the report of a particular individual should be more important.
A value that is slightly outside the range of reference does not necessarily mean that one is sick. Physicians read MPV in combination with the platelet count, other elevated MPV on CBC values and the clinical situation of a patient. The interpretation may also be affected by age, medical conditions and sample-handling procedures.
What Does a High MPV Mean?
A high MPV in a CBC blood test indicates that platelets are larger than the laboratory's expected average. Larger platelets may be younger platelets released into the bloodstream when platelet production or turnover increases.
A high MPV in a CBC blood test can be a result of a number of conditions such as high platelet turnover, inflammatory conditions and platelet-related diseases. However, an elevated result does not make a diagnosis and depends on the complete blood count.
Causes of Elevated MPV
Some potential causes can be the production of more platelets, inflammation, recovery after the loss of platelets and certain platelet disorders. Under some conditions, increased platelet size can be an indication that the bone marrow is reacting with an increase in the number of platelets required. Increased MPV in CBC must be taken into consideration in addition to platelet count and other clinical observations.
What Does a Low MPV Mean?
A low MPV in a CBC blood test means platelets are smaller than the laboratory's expected average. It is sometimes related to decreased platelet production, yet a low result is not sufficient to prove a bone marrow disease or another medical condition.
The CBC MPV low meaning is based on the number of platelets, other blood findings, medical history and laboratory reference range. Mildly low MPV may leave those who have it with no symptoms or severe underlying disease.
Also Read: Effective Treatment Of Low Platelet Count
Possible Causes of Low MPV
In some conditions where there is low platelet production, a low MPV can be experienced. But the measurement can also be affected by biological variation, testing methods and sample handling.
A low MPV in a CBC blood test result should not be considered a diagnosis. Medical personnel may determine the significance of the finding by looking at the entire report and determining whether additional testing or investigation is necessary for CBC and differential MPV.
Also Read: How to Increase Platelet Count Naturally
MPV and Platelet Count: Why Are Both Important?
There is a difference between MPV and platelet count. MPV is used to determine the size of the average platelet, and platelet count is the number of platelets in a certain volume of blood.
An individual could possess a normal platelet count, but an abnormal MPV, or both values could be beyond the reference ranges. As an example, in some cases, a low platelet count and large platelets can indicate a higher turnover rate of platelets, but in other cases, different investigations are needed.
Such measurements are interpreted by doctors rather than relying on MPV alone. This method assists in deciding on whether further testing is necessary and whether the underlying condition is to be examined or not.
What Can Affect Your MPV Result?
There are a few variables that may affect the readings of MPV, such as platelet turnover, medical illnesses, medications and laboratory tests. Platelet measurements may be affected by inflammation and some diseases, although the relationship varies between individuals.
The time between the collection of blood and laboratory tests may also affect MPV since platelets may vary in size after being collected. This is why findings of various laboratories are not necessarily directly comparable.
It is possible that some physiological processes may be influenced by stress, yet this does not automatically imply that stress is the cause of an abnormal MPV. In case of an unexpected result, a medical professional can review the report, take into account the symptoms and order a repeat test accordingly.
When Should You See a Doctor?
An abnormal MPV should be discussed with a healthcare expert, especially when the platelet count is equally abnormal or when there are symptoms. Medical consultation is necessary in the event that you have unexpected bruising, frequent nosebleeds, bleeding or red or purple spots on the skin that last longer than usual. Severe or persistent bleeding requires urgent medical attention.
