Use the Case Below to Answer the Following Questions

question 31

Multiple Choice

Use the case below to answer the following questions:
A mother takes her 6-year-old boy to see the pediatrician because of tiny pinpoint spots that appeared on his upper torso 3 days prior. The pediatrician orders a CBC, and it comes back abnormal. There are 70% blasts present, with a platelet count of 18 x 10⁹/L. A bone marrow aspirate and biopsy are performed, and confirm ALL. Cytogenetic and molecular testing was also ordered, but no results were present yet.
-Which of the following sets of markers would be useful in differentiating B cell ALL from T cell ALL?

• A)CD10, CD4, CD2, CD19, and CD22
• B)HLA-DR, TdT, and CD10
• C)CD34, Ig gene rearrangement, and TCR gene rearrangement
• D)cIg, HLA-DR, and TdT

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Definitions:

Calculate

To determine mathematically the amount or number of something.

Result

The outcome or consequence of an action, experiment, or process.

Numerator

The top number in a fraction that indicates how many parts of the whole or group are being considered.

Denominator

The bottom number in a fraction, indicating into how many parts the whole is divided.