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Clin Lab Med Final > CBC > Flashcards

CBC Flashcards

1
Q

Total number of WBC

A

Leukocytes

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2
Q

Percentage of each type of WBC

A

Differential

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3
Q

Primary component of differential

A

Neutrophils

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4
Q

Elevated neutrophils

A

Think acute bacterial infection

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5
Q

Elevated lymphocytes (t-cells, b-cells)

A

Think viral or chronic infection

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6
Q

Eosinophils and Basophils

A

A/w allergic rxn

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7
Q

Bands or baby neutrophils

A

Think acute bacterial infection

Becz body is making more neutrophils to fight you see immature ones in the smear

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8
Q 
Viral infection 
Overwhelming bacterial infxn
Bone marrow fail
Drug tox
autoimmune disease
A

Decreased leukocytes/WBC count (leukopenia)

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9
Q 
Inflammation
Bacterial Infection
Neoplasm
Leukomoid response
Glucosteroid use
A

Leukocytosis

elevated total WBC count/leukocytes

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10
Q

Typical response to bacterial infection

A

Left shift:
increased neutophils % w/ bands
decreased lymphocyte %

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11
Q

Markedly elevated WBC >50,000

A/w infection

A

Leukemoid response

-often initially confused with leukemia

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12
Q

Neutrophilia

elevated neutrophil count

A 
Bacterial Infections
Leukemia
Inflammation
Medications
Stress
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13
Q

Neutropenia

decreased neutrophils

A

Viral Infection
Aplastic anemia
Overwhelming bacterial infection
Drugs

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14
Q

Lymphotcytosis

elevated lymphocyte count

A

Viral infections

Lymphocytic leukemia

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15
Q

Lymphocytopenia

decreased lymphocyte count

A 
Corticosteroids 
Immunodeficiency disease (late HIV)
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16
Q

NAACP for elevated eosinophil count

A 
Neoplasm
Allergic rxn
Addison's disease
Collagen vascular disease 
Parasites
Coccidiomycosis
17
Q

These do NOT respond to bacterial infections

A

Eosinophils

Basophils

18
Q

Elevated Monocyte count

A

Chronic inflam disorders

Viral infections like mononucleosis

19
Q

Micro hypo anemia

A

Fe def

20
Q

Micro hypo w/ basophilic stippling

A

Lead poisoning

21
Q

Mild to no anemia with small RBC (microcytosis)

A

Thalassemia

22
Q

Dx of thalassemia

A

Hemoglobin Electrophoresis

23
Q

Relative polycythemia (increased Hgb/Hct)

A

decreased plasma vol, dehydration

Elevated Hct w/ normal RBC mass

24
Q 
Absolute polycythemia (increased Hgb/Hct)
-true increase in RBC mass
A
  • Polycythemia vera: elevated Hct w/ increased RBC mass

- Secondary plycythemia: d/t increased erythropoietin production

25
Q

Some people who smoke at high altitudes have

A

Secondary Polycythemia

26
Q

If platelet count <20,000

A

Pt may bleed spontaneously

27
Q

Thrombocytosis (increased platelet levels)

A

Malignancy

main cause to remember

28
Q

Thrombocytopenia (decreased platelet levels)

A 
ITP and TTP(rare)
Leukemia
Cirrhosis
DIC
Anemia
29
Q

More common in kids
Autoimmune (AB against own platelets)
Often no sx except bleeding (epistaxis, petechiae)
Platelets markedly low (<10,000)

A

ITP

Idiopathic thrombocytopenic purpura)

Clin Lab Med Final (5 decks)

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