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Concepts of Nutrition - Exam 2
Vitamins & Minerals
85
Nursing
Undergraduate 2
02/26/2013

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Cards

Term
Thiamine (B1) - Function
Definition
Coenzyme in energy metabolism

Muscle nerve action
Term
Thiamine (B1) - Deficiency
Definition
BERBERI
ataxia, disorientation, tachycardia
Wet = edema
Dry = nervous system

WERNICKE-KORSAKOFF SYNDROME
caused by alcoholism
Term
Thiamine (B1) - Toxicity
Definition
NONE - Water Soluble
Term
Thiamine (B1) - Main Food Source
Definition
lean pork, whole grains
Term
Riboflavin (B2) - Function
Definition
Coenzyme in energy metabolism
Term
Riboflavin (B2) - Deficiency
Definition
Ariboflavinosis, chelosis, glossitis, seborrheic dermatitis
Term
Riboflavin (B2) - Toxicity
Definition
NONE - Water Soluble
Term
Riboflavin (B2) - Main Food Source
Definition
Milk/Dairy Products
Term
Niacin (B3) - Function
Definition
Cofactor to enzymes involved in energy metabolism

glycolysis & TCA cycle
Term
Niacin (B3) - Deficiency
Definition
Pellagra
Term
Niacin (B3) - Toxicity
Definition
vasodilation, liver damage, gout, arthritic reactions
Term
Niacin (B3) - Main Food Source
Definition
Meat, poultry, fish
Term
Pyridoxine (B6) - Function
Definition
Forms coenzyme pyridoxal phosphate (PLP) for energy metabolism

CNS

hemoglobin synthesis
Term
Pyridoxine (B6) - Deficiency
Definition
dermatitis, altered nerve function, weakness, anemia
Term
Pyridoxine (B6) - Toxicity
Definition
ataxia, sensory neuropathy
Term
Pyridoxine (B6) - Main Food Source
Definition
Whole grains/cereal
Term
Folate - Function
Definition
Coenzyme in metabolism (synthesis of amino acid, heme, DNA, RNA)

Fetal neural tube formation
Term
Folate - Deficiency
Definition
megaloblastic anemia
Term
Folate - Toxicity
Definition
megadoses can mask pernicious anemia
Term
Folate - Main Food Source
Definition
Leafy green vegetables
Term
Cobalamin (B12) - Function
Definition
Transport/storage of folate

metabolism of fatty acids/amino acids
Term
Cobalamin (B12) - Deficiency
Definition
pernicious anemia

CNS damage
Term
Cobalamin (B12) - Toxicity
Definition
NONE - Water soluble
Term
Cobalamin (B12) - Main Food Source
Definition
Animal sources
Term
Biotin - Function
Definition
Metabolism of carbohydrate, fat and protein
Term
Biotin - Deficiency
Definition
produced by avidin and long-term antibiotics
Term
Biotin - Toxicity
Definition
NONE
Term
Biotin - Main Food Source
Definition
liver, kidney, peanut butter, egg yolks, intestinal synthesis
Term
Vitamin C - Function
Definition
Antioxidant

coenzyme

collagen formation

wound healing

iron absorption

hormone synthesis
Term
Vitamin C - Deficiency
Definition
scurvy
Term
Vitamin C - Toxicity
Definition
cramps, nausea, kidney stone formation, gout, rebound scurvy
Term
Vitamin C - Main Food Source
Definition
citrus
Term
Vitamin A - Function
Definition
Maintain skin and mucous membranes

important for vision, bone growth, immune function
Term
Vitamin A - Deficiency
Definition
Primary - caused by lack of dietary intake

Secondary - result of chronic fat malabsorption

xerophthalmia, night blindness, keratomalacia
Term
Vitamin A - Toxicity
Definition
hypervitaminosis A because of acute or chronic intake of supplements
Term
Vitamin A - Main Food Source
Definition
percursor = carotenoids (plant foods)

active = retinoids (animal foods)
Term
Vitamin D - Function
Definition
intestinal absorption of calcium and phosphorus depends on vitamin D
Term
Vitamin D - Deficiency
Definition
rickets

osteomalacia
Term
Vitamin D - Toxicity
Definition
hypercalcemia

hypercalciuria
Term
Vitamin D - Main Food Sources
Definition
fat of animal-related foods of butterrer, egg yolks, fatty fish and liver

MILK
Term
Vitamin E - Function
Definition
antioxidant that protects polyunsaturated fatty acids and vitamin A in cell membranes from oxidative damage
Term
Vitamin E - Deficiency
Definition
primary is rare

secondary occurs in premature infants (cystic fibrosis, biliary atresia)
Term
Vitamin E - Toxicity
Definition
no evidence of toxicity
Term
Vitamin E - Main Food Source
Definition
vegetable oils
Term
Vitamin K - Function
Definition
cofactor in synthesis of blood clotting factors

protein formation
Term
Vitamin K - Deficiency
Definition
blook coagulation inhibited

hemorrhagic disease
Term
Vitamin K - Toxicity
Definition
therapeutic vitamin K (menadione form) reactions in neonates, causing hemolytic anemia and hyperbilirubinemia
Term
Vitamin K - Main Food Source
Definition
leafty green vegetables
Term
Calcium - Function
Definition
bone/tooth formation

blood clotting

muscle contraction/relaxation

CNS
Term
Calcium - Deficiency
Definition
reduced bone density - osteoporosis
Term
Calcium - Toxicity
Definition
constipation, urinary stone formation, reduced absorption of iron and zinc (only occurs with oversupplementation)
Term
Calcium - Main Food Source
Definition
dairy
Term
Iron - Function
Definition
distributes oxygen throughout our bodies (hemoglobin and myoglobin)
Term
Iron - Deficiency
Definition
microcytic anemia
Term
Iron - Toxicity
Definition
hemosiderosis

hemochromatosis
Term
Iron - Main Food Source
Definition
heme sources = meat, fish, poultry

nonheme sources = vegetables
Term
Zinc - Function
Definition
cofactor for more than 200 enzymes

carbohydrate metabolism
Term
Zinc - Deficiency
Definition
decreases wound healing, taste, smell
Term
Zinc - Toxicity
Definition
similar to flu
Term
Zinc - Main Food Source
Definition
meat, fish, poultry
Term
Fluoride - Function
Definition
bone and tooth formation
Term
Fluoride - Deficiency
Definition
increases dental caries
Term
Fluoride - Toxicity
Definition
fluorosis
Term
Fluoride - Main Food Source
Definition
fluoridated water, tea, seafood, seaweed
Term
Sodium - Function
Definition
major extracellular electrolyte for fluid regulation
Term
Sodium - Deficiency
Definition
FVD with headache, muscle cramps, weakness, decreased concentration
Term
Sodium - Toxicity
Definition
sodium sensitive hypertension
Term
Sodium - Main Food Source
Definition
table salt
Term
Iodine - Function
Definition
thyroxine synthesis
Term
Iodine - Deficiency
Definition
decreased thyroxine causing sluggishness, weight gain, goiter
Term
Iodine - Toxicity
Definition
thyrotoxicosis
Term
Iodine - Main Food Source
Definition
iodized salt, seafood
Term
Potassium - Function
Definition
major intracellular electrolyte for fluid regulartion
Term
Potassium - Deficiency
Definition
muscle weakness, confusion, decreased appetite, cardiac dysrhythmias
Term
Potassium - Toxicity
Definition
from diet or supplements if renal disease present
Term
Potassium - Main Food Source
Definition
bananas
Term
Chloride - Function
Definition
acid-base balance

gastric hydrochloric acid for digestion
Term
Chloride - Deficiency
Definition
FVD caused by vomiting/diarrhea
Term
Chloride - Toxicity
Definition
caused by dehydration resulting in an imbalance in electrolytes
Term
Chloride - Main Food Source
Definition
table salt
Term
Hard water
Definition
water with high amounts of minerals like calcium and magnesium (hot faucet water)
Term
soft water
Definition
contains sodium (cold faucet water)
Term
intracellular fluids
Definition
within cells (high concentration of potassium and phosphates)
Term
intersitial fluids
Definition
between cells (has sodium and chloride
Term
extracellular fluids
Definition
all fluids outside the cell including intersitial, plasma, and watery components of body organs
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