Dental OSCE (Objective Structured Clinical Examination) Practice Exam

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What is the normal range for red blood cell count?

3.0-4.0 million
4.6-6.2 million
5.1-7.5 million
6.0-8.0 million

The correct answer is: 4.6-6.2 million

The normal range for red blood cell (RBC) count varies slightly based on factors such as age and sex, but generally falls within the range of 4.6 to 6.2 million cells per microliter for adult males and slightly lower for adult females, typically around 4.2 to 5.4 million cells per microliter. This range is essential for maintaining proper oxygen transport and overall metabolic processes in the body. Understanding the significance of these values is crucial for assessing conditions such as anemia or polycythemia, which can indicate underlying health issues. Therefore, option B accurately reflects the established norms for RBC count in adults.