Podcast
Questions and Answers
Elevation in neutrophils, which last for 5-10 days, indicates what type of infection?
Elevation in neutrophils, which last for 5-10 days, indicates what type of infection?
- Chronic viral infection
- Acute bacterial infection (correct)
- Long-term parasitic infection
- Chronic bacterial infection
Which type of white blood cells (WBCs) respond slowly (days to months) but provide long-lasting immunity?
Which type of white blood cells (WBCs) respond slowly (days to months) but provide long-lasting immunity?
- Lymphocytes (correct)
- Macrophages
- Eosinophils
- Neutrophils
Which range represents a normal White Blood Cell (WBC) count?
Which range represents a normal White Blood Cell (WBC) count?
- 5,000 to 10,000 (correct)
- 1,000 to 3,000
- 15,000 to 20,000
- 10,000 to 15,000
An elevated lymphocyte count suggests the body is combating which type of infection?
An elevated lymphocyte count suggests the body is combating which type of infection?
What is the primary function of B cells, a type of lymphocyte?
What is the primary function of B cells, a type of lymphocyte?
If a patient's WBC differential shows a neutrophil percentage of 70%, this most likely indicates:
If a patient's WBC differential shows a neutrophil percentage of 70%, this most likely indicates:
T cells mature in the thymus and play what role in the immune system?
T cells mature in the thymus and play what role in the immune system?
Which of the following best describes the difference between neutrophils and lymphocytes in fighting infection?
Which of the following best describes the difference between neutrophils and lymphocytes in fighting infection?
A patient's lab results show a WBC count of 12,000/microliter. Which condition might this suggest?
A patient's lab results show a WBC count of 12,000/microliter. Which condition might this suggest?
Flashcards
What are WBCs?
What are WBCs?
White Blood Cell count. Normal range is 5,000 to 10,000 per microliter of blood.
What are Neutrophils?
What are Neutrophils?
The strongest WBCs that act as the main soldiers of the body, fighting hard and fast against bacterial infections.
What are Lymphocytes?
What are Lymphocytes?
WBCs that act as the back-up army, responding to chronic bacterial infections or viral infections.
What are T-Cells?
What are T-Cells?
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What are B-Cells?
What are B-Cells?
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Neutrophil Onset and Duration
Neutrophil Onset and Duration
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Lymphocyte Onset and Duration
Lymphocyte Onset and Duration
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Elevated Neutrophil count
Elevated Neutrophil count
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Elevated Lymphocyte count
Elevated Lymphocyte count
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Study Notes
- Total white blood cell (WBC) count ranges from 5,000 to 10,000 per microliter of blood.
Tissue WBCs
- Onset: Minutes
- Duration: Short-lived
- Significance: Not measured in blood count
- Example: Macrophages
Blood WBCs
- Onset: Minutes to hours
- Significance: Acute bacterial infection
- Example: Neutrophils
- They are the strongest WBCs and the main "soldiers" of the body
- Attack fast but are limited, lasting only 5 to 10 days
- Count should be 47% - 63% of total WBC
- Onset: Days to months
- Significance: Chronic bacterial infection or virus
- Example: Lymphocytes:
- It takes them a while to get mobilized, but they last longer than neutrophils.
- Count should be 24% - 40% of total WBC
Types of Lymphocytes
- T cells which come from the thymus:
- Killer
- Helper
- Suppressor, etc.
- B cells which come from the bone marrow:
- Create antibodies (immunoglobulins IgG, A, M, E)
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