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FDNS2100 Exam #3
n/a
59
Health Care
Undergraduate 3
11/12/2008

Additional Health Care Flashcards

 


 

Cards

Term
Electrolytes
Definition
salts that dissolve in water and separate
Term
Two agents that act on kidneys to retain water
Definition
Aldosterone (from adrenal glands) and antidiuretic hormone (ADH) (from pituitary glands)
Term
Characteristics of electrolytes (2)
Definition
1. Attract water
2. Create osmotic pressure
Term
Most abundant mineral in body?
Definition
calcium
Term
1% of calcium consumed is dissolved in the blood for: (2)
Definition
blood clotting, blood pressure regulation
Term
Dietary sources of calcium
Definition
broccoli, fortified orange juice, fish with bones (sardines)
Term
Blood calcium is maintained at the expense of what?
Definition
the bones
Term
Body's reaction to blood calcium being too low (3)
Definition
1- intestines absorb more calcium
2- bones release more calcium
3- kidneys excrete less calium
Term
What does your calcium balance depend on?
Definition
hormones and vitamin D
Term
2 forms of calcium deficiency; describe
Definition
Osteoperosis- porous and fragile bones

Rickets- childhood form of osteoperosis
Term
4 Ways to decrease bone loss
Definition
1. Exercise
2. Get adequate calcium
3. Get adequate vitamin D
4. Take estrogen replacement (post-menopausal)
Term
At what age does bone mass peak?
Definition
35
Term
What happens after the age of bone mass peak?
Definition
You can only prevent loss of bone mass, you cannot add to it.
Term
2 Main functions of phosphorous
Definition
1. Bone & teeth structure
2. Major buffer
Term
Dietary sources of phosphorous
Definition
soft drinks
Term
Effect of high phosphorous intake (i.e. from soft drinks)
Definition
Decreases calcium absorption
Term
3 Major functions of magnesium
Definition
1. Important to enzymes
2. ATP metabolism
3. Prevents dental caries
Term
Dietary sources of magnesium
Definition
chocolate
Term
Magnesium defiency...
Definition
... is extremely rare.
Term
Major Functions of sodium
Definition
1. Principle cation outside cell
2. If you are salt sensitive, it increases the risk of hypertension
Term
Dietary sources of sodium
Definition
processed foods, (about 75% of our intake)
Term
Salt pills
Definition
NOT recommended for endurance; use sports drinks instead
Term
Potassium
Definition
principle cations within body cells
Term
Dietary sources of potassium
Definition
FRESH fruits and vegetables
Term
Functions of Chloride (3)
Definition
1. Major anion outside the cells
2. Fluid and electrolyte balance
3. Hydochloric acid in stomach
Term
anion
Definition
negatively charged ion
Term
cation
Definition
positively charged ion
Term
2 functions of sulfur
Definition
1. Part of other compounds
2. "Bridges in proteins, stabilizes shape
Term
World's major source of iodine
Definition
ocean mist
Term
Function of iron
Definition
Part of hemoglobin and myoglobin (carry and release oxygen
Term
2 Forms of iron
Definition
1. non-heme: found in plant and animal foods; poor absoption

2. heme: found in animal foods, better absorbed than non-heme
Term
Factors than increase iron absorption
Definition
1. vitamin c
2. pregnancy, childhood
Term
Factors that decrease iron absorption
Definition
1. tannic acid (in tea and coffee)
2. calcium in milk
Term
What is the most common genetic disorder in the US?
Definition
Hemochromatosis- caused by iron absorption overload; causes liver damage and infections
Term
Leading cause of accidental poisoning in kids?
Definition
Iron poisoning; children accidentally taking iron pills
Term
4 functions of zinc
Definition
1. Taste perception
2. DNA/RNA
3. Wound healing
4. Sperm development
Term
2 functions of selenium
Definition
1. Antioxidant
2. Makes thyroid hormone active
Term
Main function of fluoride
Definition
Forms crystal structure of teeth
Term
Deficiency of fluoride
Definition
Dental caries; most widespread health problem
Term
Best source of fluoride?
Definition
fluoridated water
Term
Functions of chromium (2)
Definition
1. Facilitate glucose uptake into cells
2. Do NOT help to lose fat; but does help with diabetes
Term
Main function of copper
Definition
Helps form hemoglobin
Term
What is a foodborne illness?
Definition
Illness transmitted to humans through food and water caused by an infectious agent

*this is also called food poisoning
Term
"Error in commercial setting" is the cause for what percent of foodborne illnesses
Definition
80%
Term
2 ways microorganisms cause foodborne illness
Definition
1. infection: microbes multiply and infect tissues
2. intoxication: toxins released as bacteria multiply
Term
At-risk groups for food poisoning (4)
Definition
pregnant women
children
elderly
those with weakened immunity
Term
Foods most likely to make people sick:
Definition
-high moisture/high nutrient foods
-chopped or ground foods
Term
List of foods most likely to make people sick:
Definition
meats & poultry, eggs, seafood, fruits & vegetables, picnics and lunch bags, honey
Term
Precautions for meats & poultry
Definition
cook thoroughly (use a thermometer)
Term
Precautions for eggs
Definition
Eat only cooked eggs
Term
Precautions for seafood
Definition
Only safe when completely cooked
Term
Precautions for fruits and vegetables
Definition
Wash thoroughly
Term
Precautions for picnics and lunch bags
Definition
keep cold with cold-packs
Term
Precautions for honey
Definition
May contain dormant microbes; VERY dangerous for infants
Term
Pasteurization
Definition
heating of milk to kill germs
Term
Hazard Analysis and Critical Control Point
Definition
identifies points of contaimination; implements controls to prevent illness; safe canning and packaging
Term
Food provides these three ideal conditions for bacteria:
Definition
1- warmth (40-140 degrees)
2- moisture
3- nutrients
Term
To be safe in the kitchen:
Definition
1: Keep hot foods hot (above140 degrees)
2: Keep cold foods cold (below 40 degrees)
3: Keep raw foods separate
4: Keep your hands and kitchen clean
Term
Temperature Danger Zone for food:
Definition
40-140 degrees
(cannot stay in TDZ for more than 4 hrs)
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