These types of RBCs are seen in which condition?
**Core Concept**
The question is referring to abnormal red blood cells (RBCs) that can be seen in certain medical conditions. The morphology and characteristics of these RBCs can provide clues to the underlying pathology.
**Why the Correct Answer is Right**
The correct answer is **sickle-shaped RBCs**, which are seen in Sickle Cell Disease (SCD). SCD is caused by a mutation in the HBB gene that codes for the beta-globin subunit of hemoglobin. This mutation leads to the production of abnormal hemoglobin (HbS), which causes RBCs to become sickle-shaped under low oxygen conditions. The sickle-shaped RBCs are more prone to hemolysis and can get stuck in small blood vessels, leading to tissue damage and pain crises.
**Why Each Wrong Option is Incorrect**
* **Option A:** is incorrect because it does not specify a condition associated with abnormal RBCs. While anemia can be a feature of many conditions, the question is asking for a specific type of RBC abnormality.
* **Option B:** is incorrect because it is too vague. While RBCs can be affected in various conditions, this option does not provide enough information to link it to a specific condition.
* **Option C:** is incorrect because it is not a recognized type of RBC abnormality. While RBCs can be affected in various ways, this option does not provide a valid answer.
**Clinical Pearl / High-Yield Fact**
Sickle Cell Disease is a genetic disorder that affects approximately 1 in 365 African American births and 1 in 16,300 Hispanic American births. It is essential for clinicians to recognize the characteristic sickle-shaped RBCs in a peripheral blood smear to diagnose SCD.
**Correct Answer:** C. Sickle-shaped RBCs are seen in Sickle Cell Disease (SCD).