Hugo brought his 2-year-old son to the doctor for a checkup. He ...

[kodithompson]

Hugo brought his 2-year-old son to the doctor for a checkup. He had recently moved to upstate New York from a poor neighborhood in Los Angeles. Hugo commented that his son had been very cranky lately. He attributed this condition to teething.
 
  He had a habit of chewing on his favorite painted wooden toys, which were family heirlooms. The well-baby clinic referred Hugo's son to the hospital laboratory because he was lethargic and pale. A CBC was ordered.
 
  TEST RESULT
  RBC 3.0 x 1012/L
  WBC 8.0 x 109/L
  PLT 180 x 109/L
  HGB 6.5 g/dL
  HCT 22
  PB smear Many red cells exhibiting diffusely granular aggregates
 
  What reflex laboratory tests would be helpful to identify the cause of this anemia?
  a. Serum iron studies
  b. Vitamin B12
  c. Bone marrow aspirate
  d. Cytogenetic studies

Question 2

Which clinical manifestation is common in vitamin B12 deficiency but not in folate deficiency?
 
  a. Glossitis
  b. Pallor
  c. Fatigue
  d. Peripheral neuropathy

[Dominic]

Answer to Question 1

Correct Answer: A

Answer to Question 2

Correct Answer: D