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Lab Values for CPC Questions and Answers
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Normal WBC count Ans: 5.0-10.0 x 10^9/L
AKA 5000-10,000/L
Increased WBC count Ans: >11.0x10^9
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Causes of increased WBC Ans: Infection
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Leukemia
Neoplasm
Trauma, surgery
Obesity
Inflammation
Connective tissue disease
Presentation of increased WBC Ans: Fever
Malaise
Lethargy
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Dizzy
Bleeding
Bruising
Weight Loss
WBC count trending downward Ans: <4.0x10^9
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Causes of WBC count trending downward Ans: Infection
Chemo
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Aplastic anemia
Autoimmunie disease
Hepatitis
Presentation of WBC count trending downward Ans: Anemia
Weakness
Fatigue
HA
Dyspnea
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Fever
WBC count trending down Ans: <1.5x10^9
Causes of WBC count trending down Ans: stem cell disorder
Viral/bacterial infection
Radiation
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Presentation of WBC count trending down Ans: Fever
Abscesses
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Sore mouth
pneumonia symptoms
Clinical implication of abnormal WBC count Ans: Symptom based
approach when determining appropriateness for activity especially in
presence of fever.
Consider timing of therapy session d/t early morning low level and late
afternoon high peak.
Neutropenic precautions (depending on facility guidelines)
Platelet reference value Ans: 140-400 k/uL
Platelets trending upward Ans: >450 (thrombocytosis/thrombocythemia)
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Causes of platelets trending upward Ans: Splenectomy
Inflammation
CA
stress
Iron deficiency
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Infection
Hemorrhage
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Presentation of platelets trending upward Ans: Weakness
HA
Dizzy
Chest pain
Tingling in hands/feet
Platelets trending downward Ans: <150 (thrombocytopenia)
Causes of platelets trending downward Ans: Infection
Leukemia