A 35-year-old woman is brought to the physician because of a 4-month history of progressive weakness of both lower limbs. She notes difficulty climbing stairs and complains of lethargy and loss of muscle bulk. Her diet consists primarily of «polished» rice. A diagnosis of dry beri-beri is suspected. Deficiency of which of the following vitamins is most likely to be detected in her blood?
- A Vitamin B3 (niacin)
- B Vitamin B6 (pyridoxine)
- C Vitamin B1 (thiamine)
- D Vitamin B2 (riboflavin)
- E Vitamin C (ascorbic acid)
Правильна відповідь: C. Vitamin B1 (thiamine)
Пояснення
Пояснення буде додано найближчим часом.