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Questions and Answers
Which of the following is not included in a complete blood count?
Which of the following is not included in a complete blood count?
- Platelet distribution width
- Mean corpuscular volume
- White blood cell differential count (correct)
- Red blood cell distribution width
What is usually the first test requested by a physician to determine a patient's general health status?
What is usually the first test requested by a physician to determine a patient's general health status?
- Complete blood count (correct)
- Red blood cell count
- Hematocrit levels
- White blood cell count
What is measured in RBC distribution width?
What is measured in RBC distribution width?
- Percentage of red blood cells in the sample
- Variability in size of red blood cells (correct)
- Concentration of hemoglobin in red blood cells
- Volume of individual red blood cells
Which parameter is used to evaluate platelet size in a complete blood count?
Which parameter is used to evaluate platelet size in a complete blood count?
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Study Notes
Complete Blood Count (CBC) Information
- A complete blood count does not include blood chemistry tests; it primarily measures blood cells and their components.
- Common CBC components are red blood cells (RBC), white blood cells (WBC), hemoglobin, hematocrit, and platelets.
Initial Health Assessment
- The first test typically requested by physicians to assess a patient's general health is the complete blood count (CBC).
- CBC helps to identify conditions such as infections, anemia, and other disorders.
RBC Distribution Width (RDW)
- RBC distribution width measures the variation in the size of red blood cells.
- A higher RDW indicates a greater variation in cell size, which can suggest possible medical conditions.
Platelet Size Evaluation
- Mean Platelet Volume (MPV) is the parameter used to evaluate the size of platelets within a complete blood count.
- A larger MPV may indicate increased platelet production, often seen in conditions such as inflammatory disorders or after significant blood loss.
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