Multiple Choice
Which of the following best describes the condition that occurs when the immune system attacks the body's own tissues?
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41. Immune System
Immune System
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Which of the following white blood cell (WBC) counts is most likely to prompt hospitalization due to a potential serious infection or underlying condition in an adult?
A
Less than 1,000 cells/\mu L
B
Greater than 30,000 cells/\mu L
C
Exactly 12,000 cells/\mu L
D
Between 4,000 and 11,000 cells/\mu L
Verified step by step guidance1
Step 1: Understand the role of white blood cells (WBCs) in the immune system. WBCs are crucial for fighting infections and maintaining immune health. Abnormal WBC counts can indicate potential health issues.
Step 2: Review the normal range of WBC counts in adults. Typically, the normal range is between 4,000 and 11,000 cells/μL. Values outside this range may suggest an underlying condition.
Step 3: Analyze the options provided. Compare each WBC count to the normal range and consider the implications of values that are significantly higher or lower than normal.
Step 4: Consider the clinical significance of extreme WBC counts. A count less than 1,000 cells/μL may indicate severe immunosuppression, while a count greater than 30,000 cells/μL could suggest a serious infection, inflammation, or other underlying condition requiring hospitalization.
Step 5: Evaluate the intermediate values (e.g., exactly 12,000 cells/μL and between 4,000 and 11,000 cells/μL). These values are closer to or within the normal range and are less likely to prompt hospitalization compared to extreme values.
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