A normal white blood cell count is generally about 4,500 to 11,000/μL. White blood cell counts that are too high or too low may be dangerous, depending on the cause. A high white blood cell count is called leukocytosis, which is generally diagnosed when white blood cell levels exceed 11,000/μL.
On its own, leukocytosis is usually not harmful. An abnormally raised white blood cell count is not a disease condition, but can point to another underlying cause such as infection, cancer or autoimmune disorders. An abnormally high white blood cell count should always be considered for its possible causes.
For example a relative value of 70% neutrophils may seem within normal limits; however, if the total WBC is 20,000, the absolute value (70% x 20,000) would be an abnormally high count of 14,000.
Leukocytosis (WBC>10,000/mm ) can indicate infection, inflammation (possibly from allergies), tissue damage or burns, dehydration, thyroid storm, leukemia, stress, or steroid use. The degree of leukocytosis depends on the severity of the disorder, the patient's age and general health, and bone marrow health.
The majority of patients present with WBC counts in the 10,000 to 15,000/mm3 range without a left shift; counts >25,000/mm3 with a left shift suggest bacterial infection.
A: For an adult, a healthy WBC count is considered to be between 4,000 and 11,000 WBCs per microliter of blood. This is on average – some healthy individuals may have a higher or lower count.
The specific number for high white blood cell count varies from one lab testing facility to another, but a general rule of thumb is that a count of more than 10,500 leukocytes in a microliter of blood in adults is generally considered to be high, while 4,500-10,500 is considered within the normal range.
Depending on the type of infection, WBC can take from 5 days to 25 days for levels to return back to normal. For instance, a study has found that patients who contracted COVID-19 took between 2 to 6 weeks after the onset of symptoms for their WBC count to return to normal.
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Foods high in protein, such as lean meats and poultry, are high in zinc — a mineral that increases the production of white blood cells and T-cells, which fight infection. Other great sources of zinc are oysters, nuts, fortified cereal, and beans.
Certain medications may also lead to a low white blood cell count because they can destroy white blood cells or damage the bone marrow. For example, taking antibiotics may sometimes cause an abnormal drop in neutrophils, a condition known as neutropenia.
Conclusions. The pronounced increase in the white cell count in the group receiving caffeine appeared to be caused by greater muscle stress and consequently more intense endothelial and muscle cell injury. The use of caffeine may augment the risk of muscle damage in athletes.
A low white blood cell count usually is caused by: Viral infections that temporarily disrupt the work of bone marrow. Certain disorders present at birth (congenital) that involve diminished bone marrow function. Cancer or other diseases that damage bone marrow.
A number of diseases and conditions may affect white blood cell levels:
The normal range is usually between 4,000 and 11,000 white blood cells per microlitre of blood. Anything below 4,000 is typically considered to be a low white blood cell count.
So, the correct answer is 'Platelet'
When you get sick, your body makes more white blood cells to fight the bacteria, viruses, or other foreign substances causing your illness. This increases your white blood count.