In a complete blood count (CBC) of someone with cystic fibrosis, which result is typically observed?

In individuals with cystic fibrosis, it is common to observe elevated hemoglobin and hematocrit levels in a complete blood count (CBC). This can be attributed to the chronic hypoxia and potential dehydration that can result from lung infections and obstructive lung disease associated with cystic fibrosis. Chronic disease often leads the body to produce more red blood cells to compensate for lower oxygen levels in the blood.

The increased hemoglobin and hematocrit serve as the body's adaptive response to improve oxygen transport despite the underlying respiratory challenges. In contrast to options suggesting decreased levels or perfectly normal results, which are less representative of the typical physiological response in cystic fibrosis patients. Understanding these patterns helps in recognizing the body's attempts to cope with chronic illness and how it affects blood parameters.