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Topic: White blood cell


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  White Blood Cell Count (WBC) - Test
A white blood cell (WBC) count, also called a leukocyte count, is part of a complete blood count.
WBC counts may vary by as much as 2,000 on any given day, due to strenuous exercise, stress, or digestion.
The WBC count may increase or decrease significantly in certain diseases, but is diagnostically useful only when the patient's white cell differential and clinical status are considered
www.diagnostic-medical-tests.com /hematology-coagulation-tests/white-blood-cell-count.htm   (517 words)

  
  White blood cell count and differential
Cells are identified by the shape and appearance of the nucleus, the color of cytoplasm (the background of the cell), and the presence and color of granules.
White blood cell that increases in response to parasitic infections and allergic reactions.
White blood cell that increases in response to bacterial infection.
www.healthatoz.com /healthatoz/Atoz/ency/white_blood_cell_count_and_differential.jsp   (751 words)

  
  White blood cell - Wikipedia, the free encyclopedia
As well as in the blood, white cells are also found in large numbers in the lymphatic system, the spleen, and in other body tissues.
Granulocytes are a category of white blood cells, characterised by the fact that all types have differently staining granules in their cytoplasm on light microscopy.
CD8+ (cytotoxic) T cells and natural killer cells are able to kill cells of the body that are infected by a virus.
en.wikipedia.org /wiki/White_blood_cell   (505 words)

  
 White Blood Cell Count And Differential | AHealthyMe.com
Cells are identified by the shape and appearance of the nucleus, the color of cytoplasm (the background of the cell), and the presence and color of granules.
White blood cell that increases in response to parasitic infections and allergic reactions.
White blood cell that increases in response to bacterial infection.
www.ahealthyme.com /topic/topic100587682   (756 words)

  
 White blood count   (Site not responding. Last check: )
An improvement in your white white blood count (WBC) shows that Neulasta is doing its job, producing infection-fighting white blood cells, protecting you against infection, and helping you stay on schedule with your chemotherapy—with the right dose at the right time, according to your treatment plan.
White blood cell counts generally reach their lowest point approximately ten to fourteen days after chemotherapy, and it may take three to four weeks, or sometimes longer, for white blood cells to replenish themselves naturally.
White blood cells are one of three main types of blood cells.
www.bymyside.com /white-blood-count.html   (652 words)

  
 MedlinePlus Medical Encyclopedia: WBC count
A WBC count is a blood test to measure the number of white blood cells (WBCs).
Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand.
The area is cleansed with antiseptic and punctured with a sharp needle or a lancet.
www.nlm.nih.gov /medlineplus/ency/article/003643.htm   (543 words)

  
 white blood cell - Hutchinson encyclopedia article about white blood cell   (Site not responding. Last check: )
T cells destroy infected cells and B cells produce antibodies that persist in the blood stream.
White blood cells are colourless, with clear or granulated cytoplasm, and are capable of independent amoeboid movement.
White blood cell numbers may be reduced (leucopenia) by starvation, pernicious anaemia, and certain infections, such as typhoid and malaria.
encyclopedia.farlex.com /white+blood+cell   (373 words)

  
 White blood cell count   (Site not responding. Last check: )
White blood cells are a major component of the body's immune system.
The blood may be collected in a pipette (small glass tube), on a slide, onto a test strip, or into a small container.
This usually entails increased numbers of cells and an increase in the percentage of immature cells (mainly band zcells) in the blood.
www.shands.org /health/surgeries/100151.html   (741 words)

  
 White blood cell count - Complete Blood Count
White blood cells, or leukocytes, are classified into two main groups: granulocytes and nongranulocytes (also known as agranulocytes).
The lifespan of white blood cells ranges from 13 to 20 days, after which time they are destroyed in the lymphatic system.
Leukocytosis, a WBC above 10,000, is usually due to an increase in one of the five types of white blood cells and is given the name of the cell that shows the primary increase.
www.rnceus.com /cbc/cbcwbc.html   (817 words)

  
 White Blood Cells
Whenever a germ or infection enters the body, the white blood cells snap to attention and race toward the scene of the crime.
The white blood cells are continually on the lookout for signs of disease.
A consistently high number of white blood cells is a symptom of Leukemia, a cancer of the blood.
sln.fi.edu /biosci/blood/white.html   (153 words)

  
 White blood cell Summary   (Site not responding. Last check: )
T cells are vital components of cell-mediated immunity (which does not depend on the presence of antibodies circulating in body fluids and in tissues).
Also known as Granular Leukocytes, Granulocytes are a category of white blood cells, characterised by the fact that all types have differently staining granules in their cytoplasm on light microscopy.
Agranulocytes are a category of white blood cells characterised by the absence of granules in their cytoplasm.
www.bookrags.com /White_blood_cell   (945 words)

  
 Reference.com/Encyclopedia/White blood cell
White blood cells or leukocytes are cells which form a component of the blood.
In conditions such as leukemia this may rise to as many as 50,000 white blood cells in a single drop of blood(only 1% of blood on average is a white blood cell).
Natural killer cells: Natural killer (NK) cells are able to kill cells of the body which are not displaying a signal not to kill them, as they have been infected by a virus or have become cancerous.
www.reference.com /browse/wiki/Leukocytes   (682 words)

  
 KGET TV 17 - In the Spirit of the Golden Empire - White Cell Testing   (Site not responding. Last check: )
They found those with the highest white cell counts were more likely to experience heart attacks or stroke or to die from cardiovascular causes compared to women with low white cell counts.
White blood cell counts are performed as part of complete blood counts, which are standard for most medical checkups.
Women in the study with white blood cell counts of 6.7 or higher had double the risk of fatal heart disease and a forty to fifty percent higher risk of heart attack or stroke compared to women with the lowest white blood cell counts.
www.kget.com /sunrise/story.aspx?content_id=D178902F-C404-4627-910A-0EEED02F7EF5   (274 words)

  
 9news.com | Health | New heart study shows cheap test can determine risk for heart disease   (Site not responding. Last check: )
Women with the highest levels of white blood cells were found to be twice as likely to die from heart disease as women with the lowest levels.
High white blood cell counts also were associated with a 40 percent higher risk for nonfatal heart attack and a 46 percent higher risk for stroke.
In the study, a white blood cell count did not have to be off the charts to predict heart disease death.
www.9news.com /acm_news.aspx?OSGNAME=KUSA&IKOBJECTID=a32287bb-0abe-421a-006c-bfd821ab2a9b&TEMPLATEID=ac8cb0bd-ac1f-02c5-001b-ea6a93ae4941   (507 words)

  
 Neulasta® - About Low White Blood Cell Counts
In fact, complications associated with a low white blood cell count are the most common causes of dose reductions or delays in chemotherapy.
White blood cells are a key part of your natural defenses, your immune system.
A low white blood cell count means your immune system isn’t as strong as it could be and you are at increased risk of infection and interruptions in your chemotherapy.
www.neulasta.com /patient/about/about_whitecell.jsp   (459 words)

  
 HON Allergy Glossary White Blood Cell
Leukocytes or white blood cells (WBC) are cells in the blood that are involved in defending the body against infective organisms and foreign substances.
White blood cells are the principal components of the immune system and function by destroying "foreign" substances such as bacteria and viruses.
Multiplying the percentage by the total count of white blood cells indicates the actual number of each type of white blood cell in the sample.
www.hon.ch /Library/Theme/Allergy/Glossary/wbc.html   (236 words)

  
 [No title]
This procedure is used to remove platelets from platelet donors' blood, or stem cells from patients undergoing a peripheral stem cell harvest.
Determines whether the proper number of red blood cells, white blood cells and platelets are present in the patient's blood.
Macrophage - A type of white blood cell that assists in the body's fight against bacteria and infection by engulfing and destroying invading organisms.
www.henryfordhealth.org /blank.cfm?print=yes&id=33756&oTopID=33700   (4670 words)

  
 White Blood Cells
White blood cells use the blood as a means of transport from their origination in the bone marrow to their major sites of activity.
Lymphocytes and monocytes are classed as white blood cells because they are a constituent of blood and ultimately originate from the bone marrow.
Mast cells are widely distributed throughout the body and are commonly found in close proximity to the walls of small blood vessels.
www.fortunecity.com /greenfield/rattler/46/blood3.htm   (1291 words)

  
 White blood cell count definition - Cancer Information (Cancers, Symptoms, Treatment) on MedicineNet.com
White blood cells are the infection-fighting cells in the blood and are distinct from the red (oxygen-carrying) blood cells known as erythrocytes.
All the types of white blood cells are reflected in the white blood cell count.
The normal range for the white blood cell count varies between laboratories but is usually between 4,300 and 10,800 cells per cubic millimeter of blood.
www.medterms.com /script/main/art.asp?articlekey=9983   (309 words)

  
 Higher White Blood Cell Count May Boost Death Risk - healthfinder.gov
People with normal white cell counts may not be out of danger, either, since individuals on the high end of the normal range were also at increased risk of illness and death, the team of Italian and American researchers said.
Those with a high-normal WBC count of 6,000 to 10,000 had a 30 percent to 40 percent higher risk of death than patients with a low-normal WBC count of 3,500 to 6,000, the researchers said.
WBC counts, especially for a type of cell called neutrophils, rose progressively in the years before death, with significant bumps upward observed as early as five years prior to the end of a patient's life.
www.healthfinder.gov /news/newsstory.asp?docID=604160   (1091 words)

  
 NMDP - Glossary
A procedure where blood is drawn from a patient's or donor's arm and circulated through a machine that removes certain cells such as stem cells, white blood cells or platelets.
Once the healthy stem cells are infused into the patient's blood stream, the cells move from the blood vessels to the center of the bones, where they begin making new blood cells.
A stem cell from the blood of the umbilical cord and placenta.
www.marrow.org /GLOSSARY   (3152 words)

  
 White blood cell (leukocyte), Eastern North Carolina, NC
White blood cells are made in the bone marrow and protect the body against infection.
White blood cells are bigger than red blood cells and normally are fewer in number.
The number of white blood cells is sometimes used to identify an infection or to monitor the body's response to treatment.
www.uhseast.com /119291.cfm   (227 words)

  
 white blood cell - Hutchinson encyclopedia article about white blood cell   (Site not responding. Last check: )
There are two types of lymphocyte, T cells and B cells.
Human blood contains about 11,000 leucocytes to the cubic millimetre – about one to every 500 red blood cells.
Once these foreign chemicals have contacted the blood, some white blood cells can retain the memory of the particular antibody that is needed for defence.
encyclopedia.farlex.com /white%20blood%20cell   (373 words)

  
 Low white blood cell count (leukopenia) - MayoClinic.com
Sometimes the cause of a low white blood cell count can't be determined (idiopathic).
White blood cells help fight infection in your body.
A normal white blood cell count ranges from 4,500 to 10,000 cells per microliter of blood.
www.mayoclinic.com /health/low-white-blood-cell-count/AN00726   (236 words)

  
 Differential white blood cell count
A total white blood cell count is not necessarily indicative of the severity of a disease, since some serious ailments may show a low white cell count.
A differential white cell count consists of an examination of blood to determine the presence and the number of different types of white blood cells.
The ability to properly identify the different types of white cells is not difficult to develop, but it does require a thorough knowledge of staining characteristics and morphology (the study of the form and structure of organisms).
www.tpub.com /corpsman/236.htm   (747 words)

  
 Cytopenias- Anemia, Leukopenia, Neutropenia, Thrombocytopenia
Pancytopenia is the deficiency of all three blood cell types and is characteristic of aplastic anemia, a potentially life-threatening disorder that requires a stem cell transplant.
Leukocytes (white blood cells) protect the body against viral, bacterial, and parasitic infection and detect and remove damaged, dying, or dead tissues.
All blood cells derive from blood-forming stem cells that reside in bone marrow.
www.oncologychannel.com /cytopenia   (534 words)

  
 White Blood Cell Counts Hint - Augusta, Georgia
White blood cells are part of the body's immune defense system, attacking invaders such as bacteria and viruses.
White blood cell levels measure inflammation in the body, so the report adds to the growing body of evidence that inflammation play an important role in cardiovascular disease.
But routine screening of white blood cell levels is not yet in the cards, said Dr. Mary Cushman, an associate professor of medicine at the University of Vermont, who wrote an accompanying editorial in the journal.
www.universityhealth.org /139322.cfm   (827 words)

  
 White blood cell research
However, when white blood cells begin to migrate across the endothelial cells, the recycling PECAM becomes directed to the specific part of the endothelial cell border across which the leukocyte is migrating.
White blood cells also express PECAM, leading Muller's team to hypothesize that the interaction between the PECAM on the endothelial cell and the PECAM on the white blood cell is essential for migration.
They demonstrate that while the white blood cells can still attach to the endothelial cells, the recycling of PECAM is never redirected, and the leukocytes are unable to migrate into the tissue.
www.news.cornell.edu /Chronicle/03/4.3.03/Weill-recycle_cells.html   (893 words)

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