[Solved]: A 36-year-old woman, single, working as a yoga…

A 36-year-old woman, single, working as a yoga instructor and gym manager, came to the clinic for fatigue and shortness of breath. Her symptoms started 4 months ago which she attributed to her increased workload and stress. Two weeks ago, she reported paresthesia with numbness in her hands and feet. She is a single mother to her 6 year-old son; non smoker, non alcoholic beverage drinker. She is a strict vegan for the past 6 years.On physical examination, she was noted to be pale. Vital signs were: BP 126/80, HR 101, RR 22, Temp 36. The rest of her physical examination v were normal except for neurological findings of decreased vibration and position sensation in both hands and feet.Laboratory studies: CBC: His Hgb is 10.6 g/dL, Hct 31.6%, MCV 118, platelet count 378,000/microliter,andWBCcount10,100/microliter. Peripheral blood smear: shows red blood cells displaying macro-ovalocytosisandneutrophilswith nuclearhypersegmentation.GUIDE QUESTIONS:1. What is the diagnosis from these findings?2. How would you confirm the diagnosis of Vitamin B 12 deficiency?