30 year-old female with HPN dependence following traumatic motor vehicle accident and non-compliance with adding IV multi-vitamin to HPN bag complains of difficulty with vision driving home at nighttime after clinic visits.
What’s the most likely cause?
A. Anemia
B. Vitamin A deficiency
C. Folate deficiency
D. Vitamin B12 (Cobalamin) deficiency
E. Vitamin B1 (Thiamine) deficiency