A high lymphocyte count, also referred to as lymphocytosis, can be caused by acute lymphocytic leukemia, chronic lymphocytic leukemia, cytomegalovirus (CMV) infection, human immunodeficiency virus (HIV), mononucleosis, multiple myeloma, tuberculosis, vasculitis, whooping cough and other viral infections. In adults, a lymphocyte count significantly higher than 3,000 lymphocytes in a microliter of blood is generally considered to be lymphocytosis, according to the Mayo Clinic.Know More
The Mayo Clinic explains that it is possible to have a high lymphocyte count and display no symptoms. If test results indicate a high lymphocyte count, a person's doctor may perform additional tests to determine if the lymphocyte count is harmless and temporary or it signals a more serious underlying issue, such as blood cancer or a chronic infection.
According to the Mayo Clinic, lymphocytes are an essential part of the immune system and help to rid the body of disease, so it is not uncommon for a high lymphocyte count to occur after an illness. It is rare that a high lymphocyte count is found randomly as it is normally discovered after a doctor has ordered tests to assess a pre-existing condition. Additional testing may not be required if the high lymphocyte count coincides with test results the doctor has already obtained.Learn more about Pain & Symptoms
A low lymphocyte count can be caused by the body's inability to make lymphocytes, the body's inability to make the necessary amount of lymphocytes or when lymphocytes are trapped in the lymph nodes or spleen. Low lymphocyte counts can also be caused by diseases such as autoimmune disorders, infectious diseases, blood cancer, steroid therapy, chemotherapy treatments and radiation treatments.Full Answer >
High prothrombin time is caused by blood-thinning drugs such as warfarin, a lack or limited level of blood clotting factors and inhibitor substances. Alteration in the activity of one or more clotting factors and increased use of clotting factors also increase prothrombin time.Full Answer >
The most common causes of high potassium levels are chronic kidney disease and acute kidney failure, according to Mayo Clinic. In these two cases, a person's kidneys cease to function properly and are unable to filter excess potassium from the blood, states WebMD.Full Answer >
Causes of high hemoglobin include increase in red blood cell production, smoking, certain medications and bone marrow disease. Some conditions, such as heart failure, liver cancer, kidney cancer and dehydration can also lead to high hemoglobin count, as stated by Mayo Clinic.Full Answer >