Author Question: A 5-year-old male presents with low-set ears, a fish-shaped mouth, and involuntary rapid muscu-lar ... (Read 75 times)

abarnes · **on:** Jun 25, 2018

A 5-year-old male presents with low-set ears, a fish-shaped mouth, and involuntary rapid muscu-lar contraction. Laboratory testing reveals decreased calcium levels. Which of the following di-agnosis is most likely?

a. B-lymphocyte deficiency
b. T-lymphocyte deficiency
c. Combined immunologic deficiency
d. Complement deficiency

Question 2

A 22-year-old was recently diagnosed with acquired immunodeficiency syndrome (AIDS). Which decreased lab finding would be expected to accompany this virus?

a. CD4+ T-helper
b. CD8 T-helper
c. CDC cells
d. CDC10 cells

ryrychapman11 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

ANS: B
DiGeorge syndrome results in greatly decreased T cell numbers and function and is evidenced by abnormal development of facial features that are controlled by the same embryonic pouches; these include low-set ears, fish-shaped mouth, and other altered features. B-lymphocyte defi-ciency is not manifested by these symptoms. Neither combined immunologic deficiency nor complement deficiency is manifested by these symptoms.

Answer to Question 2

ANS: A
The major immunologic finding in AIDS is the striking decrease in the number of CD4+ T cells. The change occurs in CD4 cells, not CD8. Neither CDC nor CDC 10 is a type of cell.