A Technologist Is Reviewing a Patient's Blood Smear

question 28

Multiple Choice

A technologist is reviewing a patient's blood smear. She notices that 85% blasts are present but is having a difficult time identifying the lineage. Cytochemical staining is subsequently performed, and the results for MPO, SBB, NSE, and PAS are negative. Based on this information, what is the most likely lineage of the unknown blasts?

• A) T lymphoid
• B) B lymphoid
• C) Erythroid
• D) Myeloid

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Definitions:

Wild-Type

Refers to the phenotype, genotype, or allele that is considered standard or most common in natural populations.

Neurospora

A group of ascomycete fungi frequently utilized as a standard organism for genetic and molecular biology research.

Minimal Medium

A growth medium containing only the minimal necessities required for the growth of wild-type organisms, typically used in microbial research.

Uracil

A nitrogenous base found in RNA, replacing thymine found in DNA.