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:

Lifting Head

An early developmental milestone in infants, indicating neck and upper body strength, where the infant is able to lift and hold up their head independently.

Rolling Over

A developmental milestone where an infant learns to turn over from the back to the stomach or vice versa, usually occurring around 4 to 6 months of age.

Dynamic Systems Theory

A framework describing motor skills as resulting from ongoing interactions among physical, cognitive, and socioemotional influences and environmental supports; previously mastered skills are combined to provide more complex and effective ways of exploring and controlling the environment.

Skill Milestones

Describes significant developmental achievements in a person's life, marking progress in areas such as motor skills, language acquisition, and cognitive development.