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Folic acid deficiency/B12/FAD Flashcards

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3301765210Folic acid deficiencya macrocytic anemia, absorbed through the entire GI track, reduced to folate for DNA synthesis. Requirements increase with accelerated growth (pregnancy) and hemolytic amenia0
3301768122Causes of FADaccelerated tissue growth decreased absorption (elderly, ETOH) malabsorption (sprue, celiac)1
3301769406Presentationdiarrhea, sore tongue, anorexia, irritability, memory loss, ETOH, scleral icterus, splenomegaly2
3301772640Lab presentationfolic acid MMA (will be normal) H&H (repeat in 2 months s/p treatment)3
3301774326Risksreheating food, little fresh food, pregnancy, growth spurt, hemolytic anemia, RA4
3301774327Treatment:Folic acid 0.5-1 (max 5mg/daily)-correct underlying cause5
3301775803Folic acid requirements in preganancy:additional folic acid 0.4mg/day for 3 months prior to conceptions during pregnancy 0.8-1 mg/day for first trimester. continue through lactation If NT defect in the past: 4 mg daily for 3 months before conception & 12 weeks after Always prescribe it.6
3313564088Folic acid rx in adults1mg daily7
3301860452Foods With Folatelentils; dried beans and peas; dark green vegetables such as broccoli, spinach, collard or turnip greens, okra, and asparagus; and citrus fruit and juice8
3301777140Lactation:depletes folate, if refrigerated ok up to 3 months (then levels below the recommended daily folate requirement)9
3301800688B12 Deficiency, Why is B12 importantNecessary for brain and neuron health Essential for RBC development, causes atrophy of the stomach, need an intrinsic factor to not develop deficiency10
3301815398Chronic def. can causenerve and brain damage that may not be reversible (must be caught in 6 months to reverse)11
3301815410Most common causepernicious anemia, but also can be gastrectomy, strict Vegans, alcoholics, and small bowel disease12
3301798866Pernicious anemiaMost common form of B12 deficiency autoimmune DO, intrinsic factor is not produced, limiting B12 absorption. abundant on foods or animal origin13
3301800689Presentation:low Hct (slow developing), neurological s/s: beg beefy tongue, icterus pallor, pale conjunctiva, glossitis, neuropathy that starts peripherally and moves centrally, difficulty with gross and fine motor skills, decrease reflexes, weak grip, decreased vibratory sensation, abnormal Romberg14
3301801895Complications:can be permanent unless caught within 6 months reversable--peripheral neuropathy, difficulty with balance, memory changes and oral irritation15
3301832903Those most at riskAutoimmune, vegan, alcoholic, SBD16
3301804252Labs:CBC (check electroolytes (k)), B12 Parietal cell antibodies, Intrinsic factor antibodies17
3301835514lab presentationB12 <200, intrinsic factor antibodies, elevated MMA in urine (methymalonic acid),18
3301805539Treatment:parenteral form (injection) is preferred due to absorption with intrinsic factor- 100mcg/day IM for 1st week, then week for 1 month and then monthly for life. Oral can be absorbed into Small intestine which may led to treatment failure19
3301862337Foods with B12eggs, milk, cheese, milk products, meat, fish, shellfish and poultry. Some soy and rice beverages as well as soy based meat substitutes are fortified with vitamin B1220

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