Which statement compares AML and ALL regarding typical age group and blasts on smear?

Which statement compares AML and ALL regarding typical age group and blasts on smear?

• A. AML is more common in adults; ALL is more common in children; both show blasts on peripheral smear
• B. ALL is more common in adults; AML is more common in children; blasts on smear
• C. AML is more common in adults; ALL is more common in children; blasts on smear in both
• D. AML and ALL are equally common across all ages; blasts are rare on smear

Answer: (A)

The key idea is how age patterns and blood smear findings differ between AML and ALL. AML tends to occur in adults, while ALL is most common in children. In both diseases, you typically see blasts on the peripheral blood smear, reflecting the malignant blast population driving the leukemia. So, the description that AML is more common in adults, ALL is more common in children, and blasts are present on the peripheral smear in both fits the usual clinical pattern. The other statements either reverse the age distribution or imply that blasts are rare, which doesn’t align with common presentation.

The key idea is how age patterns and blood smear findings differ between AML and ALL. AML tends to occur in adults, while ALL is most common in children. In both diseases, you typically see blasts on the peripheral blood smear, reflecting the malignant blast population driving the leukemia. So, the description that AML is more common in adults, ALL is more common in children, and blasts are present on the peripheral smear in both fits the usual clinical pattern. The other statements either reverse the age distribution or imply that blasts are rare, which doesn’t align with common presentation.