Título Em Hematologia E Hemoterapia Practice Questions - Título De Especialista Em Hematologia E Hemoterapia (ABHH AMB) Exam

Access More Questions

A 58-year-old male with a history of chronic autoimmune gastritis presents with progressive paresthesias in a stocking-glove distribution, loss of proprioception and vibratory sense, and memory lapses. Laboratory studies reveal: Hb 7.2 g/dL, MCV 118 fL, Platelets 95 x 10^9/L, Leukocytes 3.2 x 10^9/L, LDH 1,850 U/L, Indirect Bilirubin 2.1 mg/dL, and hypersegmented neutrophils on peripheral blood smear. Which diagnostic metabolite profile is most specific for cobalamin (Vitamin B12) deficiency over folate deficiency?

Elevated serum methylmalonic acid (MMA) and elevated serum homocysteine. Elevated serum homocysteine with normal serum methylmalonic acid (MMA). Normal serum methylmalonic acid (MMA) with low erythrocyte folate. Suppressed serum methylmalonic acid (MMA) and elevated serum cobalamin.

Correct Answer:

Elevated serum methylmalonic acid (MMA) and elevated serum homocysteine.

Access more questions from this quiz

Continue to Título em Hematologia e Hemoterapia Practice Questions - Título de Especialista em Hematologia e Hemoterapia (ABHH AMB) Exam for more practice questions and the full quiz experience.

Access More Questions