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14 Cards in this Set
- Front
- Back
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What does a CBC include?
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White blood cell count, Differential white cell count, Red blood count, Hematocrit, Hemoglobin, Red blood indicies, Platelet count
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How long is the lifespan of a leukocyte?
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13-20 days (after which the cells are destroyed in the lymphatic system & excreted in fecal matter)
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What causes leukocytosis?
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(think bacterial)
Acute infection, the degree of the increase of leukocytes depends on the severity of the infection. |
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Less common causes of leukocytosis include:
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Leukemia, Trauma or tissue injury, Malignant neoplasms, Toxins, uremia, Coma, Eclampsia, Acute hemolysis, Acute hemorrage, Steroid therapy.
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Segmented Neutrophils are?
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Polymorphonuclear neutrophils (polys or PMN)
Neutrophils, Basophils & Esosinophils. |
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What % of WBC do Segmented Neutrophils account for?
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50-60%, most numerous & important in the body's inflammation reaction.
(Constitutes a primay defense) |
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What are immature PMN's (Polymorphonuclear neutrophils or Segs) refered to as?
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Stabs or Band cells
(non-segmented neutrophil, wright stain) |
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Where are T-lymphocytes made?
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in the thymus
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Where are B-lymphocytes made?
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in the bone marrow
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What is Neutrophilia?
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(granulocytes)
Increased # & % of neutrophils >8000/mm. |
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What are causes of neutrophilia?
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Acute localized & general bacterial infections, Inflammation (rheumatic fever, acute gout), Poisoning, Some leukemias, Tissue necrosis, Acute hemorrhage, Acute hemolysis of RBC's.
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Deggenerative shift to the left is?
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in some overwhelming infections, there is an increased in band forms w/no leukocytosis (poor prognosis)
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Regenerative shift to the left is?
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in bacterial infections, increased band forms w/leukocytosis (good prognosis)
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Shift to the right is?
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Few band cells with increased segmented neutrophils can occur in; liver dz, megaloblastic anemia, hemolysis, drugs, CA, & allergies.
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