Vitamins, minerals & nutrients Flashcards

(37 cards)

1
Q

Vitamin A

A
  • fat soluble
  • normal growth
  • development of bones and teeth
  • skin and mucosal membranes
  • eye sight= rhodopsin formation
  • xerophthalmia: cornea and tear duct
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2
Q

Vitamin A: dietary sources

A

Preformed vitamin A (retinal)- animal sources

Provitamin A- carotenoids (carrots, cantaloupe, dark veggies)

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3
Q

Fat-soluble vitamins

A
  • Stored in liver and fatty tissue
  • increase risk of toxicity
  • absorption in small intestines via micelles
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4
Q

Water- soluble vitamins

A
  • Vitamin C and B complex
  • briefly stored and exerted
  • daily replenishment
  • Execption: B-12 =stored in liver
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5
Q

Vitamin D

A
  • Maintains normal blood calcium and phosphorus levels
  • develop and maintains strong bones
  • attained though foods and IV rays
  • UV rays trigger vitamin synthesis
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6
Q

Vitamin D deficiency

A

Osteomalacia (Rickett’s in children)

Osteoporosis

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7
Q

Vitamin D dietary sources

A

Yeast
Fish liver oils
Salmon
Fortified foods D2 or D3(dairy, cereals)

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8
Q

Vitamin E

A
  • antioxidant
  • prevents formation of free radicals
  • prevents cell membrane damage
  • free radicals attack cell tissues ad alter membranes
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9
Q

Vitamin E deficiency

A
  • Hemolytic anemia

- disruption of myelin formation

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10
Q

Vitamin E dietary sources

A

Vegetable oils
Peanuts
Products made from oils

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11
Q

Vitamin K

A
  • coagulation vitamin
  • promotes lover synthesis of clotting factors
  • antidote for an over dosage of warfarin
  • body makes vitamin through bacteria in the GI tract
  • hepatic biosynthesis of blood clotting
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12
Q

Vitamin K deficiency

A

Bleeding/hemorrhage

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13
Q

The B vitamins

A
  • Found in fresh fruits and vegetables
  • change food into energy
  • help the body use fats and proteins
  • cell division and cell metabolism
  • require an acidic environment for absorption
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14
Q

Vitamin B1 (Thiamine)

A
  • Coenzyme in the metabolism of CHO
  • conversion of CHO to energy for heart, nervous system, and muscle function
  • greater risk of deficiency with chronic alcoholism
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15
Q

Vitamin B1 (thiamine) Deficiency

A
  • Weakened heart muscle
  • nerve activity in brain impaired
  • impair GI function and secretory glands
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16
Q

Vitamin B1 (thiamine) Dietary sources

A
Whole grains
Green peas
Potatoes 
Legumes 
Milk
17
Q

Folate (B9)

A
  • cell division and DNA synthesis
  • stimulates production of RBC, WBC, and platelets
  • aids in heme production
  • greater deficiency risk with chronic alcoholism
  • fat soluble
18
Q

Folate (B9) deficiency

A

Megaloblastic anemia

Neural tube defects

19
Q

Folate (B9) Dietary Sources

A
Dark leafy greens
Citrus fruits
Tomatoes
Legumes
Fortified cereals
Grains
20
Q

Water soluble vitamins

A

Vitamin B1
Vitamin B9
Vitamin B12
Vitamin C

21
Q

Fat soluble vitamins

A

Vitamin A
Vitamin D
Vitamin E
Vitamin K

22
Q

Vitamin B12 (cobalamin)

A
Normal growth 
Call reproduction 
Maturation of RBC's 
Folic acid and B12 needed for RBC production 
Protein complex found in animal foods
23
Q

Vitamin B12 Deficiency

A

-Megaloblastic anemia
-Pernicious anemia
affects hematologist and nervous system
-needed B12 IM injections for pernicious anemia
-cognitive mpairment
-numbness
-tingling-
Risk Populations:
Elderly d/t < HCL-
vegan/ strict vegetarians

24
Q

Vitamin B12 Dietary sources

A
Meat
Fish
Chicken 
Milk
Cheese
Fortified foods
25
Vitamin C
- Synthesis and maintenance of collagen - Intercellular formation of blood vessels, bones, cartilage, skin and tendons - maintain immune system - promotes formation of RBC's - helps with absorption of iron
26
Iron
- Requires acidic environment for conversion of ferric iron to ferrous iron - carries O2 around body - immune function - growth needs and brain development - stored as ferritin in liver, spleen, and bone marrow - Vitamin C supports absorption
27
Iron deficiencies
Iron-deficiency anemia | Geri pt's taking antacids at inc. risk
28
Calcium
``` Stored in teeth and bones Bone matrix construction Contraction/relaxation of ms and heart Transmit NV impulses Blood coagulation to convert prothrombin to thrombin Regulated by PTH, Vitamin D, Calcitonin ```
29
Calcium deficiency
Osteomalacia Osteoporosis Nerve and muscle excitability (tremors) Paresthesia ( tingling and prickling and round mouth and fingers)
30
CLINICAL SIGNS | Skin tuger:tenting
Dehydration
31
CLINICAL SIGNS | Dry, scaly skin
Vitamin A deficiency
32
CLINICAL SIGNS | Spoon shaped nails
Iron deficiency
33
CLINICAL SIGNS | Ecchymosis, petechiae, nosebleeds
``` Vitamin K deficiency (clotting issues) Vitamin C (capillary wall integrity) ```
34
CLINICAL SIGNS | Pale conjunctiva
Iron deficiency
35
CLINICAL SIGNS | Hair loss
Protein deficiency
36
Function of protein
- necessary for building and maintaining body tissues - helps maintain blood volume (albumin) - helps maintain immune fx
37
Function of water
Found in and around cells Maintains all body functions Major constituent of blood and BP Solvent for vitamins and minerals