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Nutrition/Roth text

Nutrition/Roth text/Nursing

ab
organic, carbon-containing compounds that enable the body to use energy. vitamins
fat-soluable vitamins (4) KADE
water soluable vitamins (9) 8 in the B complex, C
"UL" stands for tolerable Upper Limit
"AI" stands for Adequate Intake level
"DRI" stands for Daily Recommended Intake
function of the NRC (National Research Council) publish recommended dietary allowances for minerals based on research
Those who are prone to vitamin deficiencies alcoholics, poor, elderly, children, incapacitated
free radical atoms with odd or unpaired electrons due to reaction with oxygen
free radicals can damage D/RNA and cell membranes
antioxidant substance that prevents damage from oxygen
antioxidants stop the chain reactions of free radicals
restored foods are foods in which vitamins lost in cooking are replaced
enriched foods are vitamins are added into
vitamers are different chemical forms of the same vitamin
tocopherols vitamers of Vit E
tocotrienols a form of Vit E
precursor/provitamins are substances vitamins can be synthesized from
prohormones are substances the body can synthesize a hormone from
carotinoids are precursors to Vit A
xerophthalmia dry mucous membranes of the eye
xerophthalmia is caused by a deficiency in Vit A
a lack of vitamins is called avitaminosis
hemolysis is RBC destruction
a non-heme iron is iron from animal food (not part of hemoglobin) and from plants
a heme iron iron from the hemoglobin found in animals (meats)
collagen is a protein that holds body cells together
fat soluable vitamins are carried by lipoproteins
lipoproteins carry fat soluable vitamins to the (organ) liver
deficiencies in fat soluable vitamins appear slowly
megadoses of fat soluable vitamins should be (encouraged/avoided) avoided
fat soluable vitamin deficiencies are often seen in patients with chronic malabsorption diseases: celiac, CF, crohn's
preformed Vit A is known as retinol
sources of Vit A are: liver, whole milk, cream, butter, cod liver oil, GLVs, deep yellow/orange fruit
the leading cause of blindness is a deficiency in Vit A
carotenoids are also considered antioxidants
functions of Vit A are: maint. of vision, mucous membranes, skin, bone growth/development, reproduction, immune
deficiencies in Vit A can cause: night blindness, dry, rough skin, resp infections, bone growth ceases
an excess amount of Vit A can cause: birth defects, hair loss, headaches, nausea, dry skin/muscous membranes, bone/joint pain, anorexia, liver enlargement/damage
Vit D is considered a prohormone
the best source of Vit D is sunlight
other sources of Vit D are: fortified milk, fish liver oils, egg yolks, butter
the function of Vit D is: promotion of calcium and phosphorus absorption, through calcium it promotes normal bone and teeth mineralization, prevents hypocalcemima
an excess in Vit D can cause: calcium and phosphorus deposits in soft tissues, kidney stones, kidney and heart damage, bone fragility
an illness in children caused by a Vit D deficiency rickets
in adults, a Vit D deficiency can cause osteomalacia, osteoporosis
the types of Vit E are (4) alpha, beta, delta, gamma
Vit E is also considered an antioxidant
the functions of Vit E are: protects cell structure, reduces hemolysis, enhances immune system, retards food spoilage
sources of Vit E are: veg. oil and margarie from corn, soy, safflower, cottonseed; wheat germ, nuts, GLVs.
an excess amount of Vit E is (common/rare) rare, however megadoses are not recommended
a deficiency in Vit E can cause: low birth wt in babies, decreased fat absorption, neuro defects, RBC destruction
Vit K is aborbed with fats in the small intestine and colon
Vit K is made of blood clotting compounds
Vit K 1 (phylloquinone) is found in GLVs and animal tissue
Vit K 2 (menaquinone) is found in intestinal bacteria and animal tissue
Synthetic Vit K is called menadione
This is given to newborns to prevent intercranial hemorrhages Vit K
Patients with poor fat absorption or long-term antibiotic therapy may need supplemental Vit K
This is needed to make prothrombin Vit K
the antidote for warfarin and coumadin Vit K
used to treat hemorrhages Vit K
sources of Vit K are: GLVs, dairy, eggs, meats, fruits, cereals, cow's milk
an excess of Vit K can cause hemolytic anemia
a deficiency in Vit K can cause defective blood coagulation, abnormal PT, PTT, hemorrhage
Thiamin is part of the B 12 complex and is a coenzyme
the functions of thiamin are: metabolism of carbs and some amino acids, nerve and muscle action, maintains appetite
sources of thiamin are: unrefined and enriched cereals, yeast, wheat germ, lean pork, organ meats, legumes
a deficiency in thiamin can cause: loss of appetite, fatigue, nervous irritability, constipation
people at risk for thiamin deficiency are those who eat large amounts of raw fish (due to thiaminase)
an illness caused by an extreme deficiency in thiamin is beriberi
those at risk of thiamin deficiency are: alcoholics, dialysis patients, long-term IV use, those with chronic fevers
other than Beriberi, thiamin deficiencies can cause: heavy legs, burning feet, tachycardia, heart failure, edema
riboflavin is part of the B complex
functions of riboflavin are: carb, fat, and protein metabolism, tissue maintenence (involving the mouth area), healthy eyes
sources of riboflavin are: meats, poultry, fish, enriched breads and cereals, broccoli, spinach, asparagus, milk (opaque jug)
a deficiency in riboflavin is called ariboflavinosis
ariboflavinosis can cause: cheilosis (sores/cracks at corners of mouth), glossitis, dermatitis, eye strain (itching, burning, fatigue), photophobia
fiber laxatives can reduce the absorption of this vitamin found in the B complex riboflavin
niacin is also known as nicotinic acidor nicotinamide
niacin is a coenzyme in energy metabolism
niacin can be used to lower cholesterol
if niacin is used to lower cholesterol, the patient must watch for signs of liver damage and peptic ulcers
sources of niacin are: meats, poultry, fish, peanuts/legumes, enriched breads and cereals
1mg of niacin equals 60mg tryptophan
a deficiency in niacin also occurs in a deficiency in riboflavin
a major deficiency in niacin can cause pellagra
pellagra, a deficiency in niacin can cause: skin sores, diarrhea, irritability, poor memory, dizziness, death
an excess amount of niacin can cause: flushing/vascular dilation, GI problems, itching, liver damage
Vit B 6 is also known as pyridoxine, pyrodoxal, pyrodoxamine
tryptophan catalyzes to niacin with Vit B 6
this vitamin synthesizes serotonin and dopamine Vit B 6
functions of Vit B 6 are: protein metabolism and absorption, aids glucose to glycogen, converts amino acids to needed ones
sources of Vit B 6 are: poultry, fish, liver, kidney, potatoes, bananas, spinach, oats and whole wheat
Vit B 6 are lost from oats and wheat if they are refined or milled
oral contraceptives can cause a deficiency in Vit B 6
as with other B complex vitamins, a deficiency in Vit B 6 can cause: irritability, cheilosis, glossitis, dermatitis, depression, neuro and abdominal problems in infants
toxicity of Vit B 6 is rare, but can cause neurological problems
Vit B 12 is also known as cobalamin
functions of Vit B 12 are: folate metabolism, myelin sheath protection, RBC maintenence
sources of Vit B 12 are: organ meats, lean meat, seafood, poultry, eggs, dairy
chronic vegetarianism can cause a deficiency in Vit B 12
general deficiencies in Vit B 12 can cause: low myelin sheath synthesis, neurological problems, anorexia, glossitis, stomatitis, pallor, depression, dizziness
lack of Vit B 12 binding to intrinsic factor can cause pernicious anemia
this form of anemia can develop due to a lack of Vit B 12 megaloblastic anemia
megaloblastic anemia is characterized by: very large, immature RBCs
patients who cannot absorb Vit B 12 in the ileun will need Vit B 12 IM injections
folate is also known as folic acid, folacin
functions of folate are: DNA synthesis, protein metabolism, hemoglobin synthesis
it is better to eat fruits and vegetables containing folate raw
sources of folate are: fortified cereals, GLVs, legumes, sunflower seeds, OJ, strawberries
folate/folic acid is important for this population those who are pregnant
neural tube defects associated with folate deficiency are: spina bifida, anencephaly
deficiency in folate in all ages can cause: stoma/glossitis, poor growth, depression, confusion, megaloblastic anemia
an excess of folate can: mask a possible Vit B 12 deficiency, phenytonin inactivation
biotin is a coenzyme in the synthesis of fatty and amino acids
niacin is synthesized from trytophan with the aid of biotin
sources of biotin are: milk, organ meats, egg yolks, soy flour, cereals, legumes, yeast, fruit
a deficiency in biotin can cause: nausea, anorexia, depression, dermatitis, increase in serum cholesterol, hair loss
the functions of pantotheic acid carb, fat, protein metabolism, synthesis of acetylcholine and steriod hormone
sources of pantothenic acids are: meats, eggs, whole grains, legumes
pantothenic acids are synthesized by the body
a clinically induced deficiency in pantothenic acids causes: weakness, fatigue, burning in feet
Vit C is also known as ascorbic acid
functions of Vit C are: formation of collagen, absorption of non-heme iron, works with immune system, assists in function of NorEpi, amino acids, folate
most people take Vit C when they suspect they have a cold
sources of Vit C are: citrus fruit, melon, strawberries, tomatoes, potatoes, red/green peppers, cabbage, broccoli
this much more of Vit C is needed for smokers and those stressed 35mg more that DRI
a deficiency in Vit C can cause: bleeding gums, brusing, poor wound healing
major illness associated with Vit C deficiency: scurvy
excess amounts of Vit C can cause: nausea, diahrrea, cramps, excessive iron absorption, oxalate kidney stones, high uric acid level
contrary to popular belief, vitamin/mineral supplements do not enhance performance, build muscle, provide energy, cure cancer, cure the common cold or heart disease
megadoses of vitamins/minerals should only be prescribed
herbals are considered supplements
regulations on vitamin/mineral supplements are done by USFDA
supplements cannot claim to prevent specific illnesses
excess minerals can be toxic/hazardous
minerals originate in the soil and water
before a supplement can be removed from store shelves the USFDA must have proof they are unsafe
salts are soluble in water
the function of electrolytes are: maintain fluid and electrical balance, nerve impulses, muscle contraction, acid-base balance
the functions of calcuim are: development of strong bones and teeth (with P), nerve/muscle action, heart function, blood clotting, cell metabolism
the body maintains blood levels of this, even if intake is poor calcium
in low levels of calcium, the parathyroid tells the kidneys to conserve calcium
the bodys response to hypokalemia is to release calcium from the bones
osteoclasts tear down bones
osteoblasts build bones
high levels of calcium can cause: constipation and inhibit iron and zinc absorption
tetany and osteoporosis can be caused by low calcium in blood
osteomalacia is also called adult rickets
phosphorus works along side of calcium
phosphorus is stored in the bones
sources of calcium are: milk, sardines and salmon, GLVs
in order to be absorbed, calcium needs Vit D
highest bioavailable calcium supplement is calcium bicarbonate
Created by: agperryman
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