Water and Minerals Flashcards
Pertain to the elements in their simple inorganic form
Minerals
Major Minerals
- Sodium
- Chloride
- Potassium
- Calcium
- Phosphorus
- Magnesium
Involved in fluid balance via antidiuretic hormone and aldosterone secretion
Sodium
Nerve transmission and neurological function
Sodium
critical for brain health
Sodium
it helps control BP and blood volume
Sodium
Maintain acid base balance in conjunction with chloride
Sodium
Sodium maintain acid base balance in conjunction with _______________
chloride
MAJOR CATION OF ECF
Sodium
Major cation in the ICF is
Potassium
DIETARY SOURCES of Sodium
- Processed or prepared foods
- Preservative or flavoring agent in food products
- Hidden sources (Medications)
RDA of Sodium for adults
500 mg/day
Symptoms of Sodium Deficiency
nausea, vomiting, diarrhea, muscle cramps, and mental status changes (confusion and disorientation)
Excess Sodium
- Hypernatremia
- Contributes to the development of edema and hypertension and lead to neurological signs
Fluid balance
Chloride
major anion of the ECF
Chloride
Acid base balance and moves across the cell membrane to interact with potassium
Chloride
main role of Chloride is acid base balance and moves across the cell membrane to interact with ____________
potassium
Maintain gastric acidity (HCL)
Chloride
Chloride works with?
Potassium, Sodium and Carbon Dioxide
Chloride RDA
750 mg/day
Chloride is often linked with ___________ in foods
sodium
Chloride Deficiency
- Infants with condition of failure to thrive
- Losses occur through GI tract and result in dehydration and
acid base imbalance
Excess Sodium
- Vomiting
- Not usually seen unless there is an underlying disease state
Important in nerve transmission and muscle contraction
Potassium
Maintain acid base balance by transcellular shifting in response to acid base changes in the body
Potassium
Cardiac muscle
Potassium
MAJOR CATION OF THE ICF
Potassium
Dietary Sources of Potassium
- Cooked dried beans, potatoes, banana, orange
- Fresh fruits, less in processed foods
Large amounts of licorice in the diet can lead to
hypokalemia and sodium water retention
RDA of Potassium for adults
2000 mg/day
Potassium is seen coexisting with deficiencies of other electrolytes like
magnesium and calcium
Certain medications can lead to retained levels of potassium in the body such as
ace inhibitors, steroids, and potassium sparing diuretics
Potassium deficiency is seen usually from the use of certain medications that promote _____________________
K+ excretion
help rid your body of salt (sodium) and water. can decrease edema and blood pressure
Diuretics
Constituent part of bones and teeth
Calcium
Nerve conduction (neurotransmitter) and muscle contraction (actin/myosin)
Calcium
Coagulation pathway
Calcium
Active and inactive forms exist in the body (ionized and nonionized)
Calcium
Calcium has an inverse relationship with?
Phosphorus
increases serum CA+
PTH (parathyroid hormone)
decreases serum CA+
Calcitonin
DIETARY SOURCES of Calcium
Sardines, milk, dairy
Adequate Intake of Calcium for adults (19-50 years old)
1000 mg/day
Adequate Intake of Calcium for adults 51 years old and over
1500 mg/day
decreases calcium absorption (nuts, seeds, grains)
Phytates
decreases calcium absorption (spinach, beets, chocolate)
Oxalates
decreases Ca+ absorption
High fiber
Clinical signs of Calcium deficiency:
Chvostek (facial nerve grimace) and Trousseau (carpopedal spasm)
facial nerve grimace
Chvostek
carpopedal spasm
Trousseau
Associated deficiencies of Calcium seen with
potassium and magnesium
Calcium Deficieny
- Development of tetany
- Osteoporosis
- Bone demineralization, relaxed nerve and muscle coordination
alkalotic condition due to increased amounts of milk or antacid
Milk-alkali syndrome
Excess Calcium
- Metastatic process or kidney stone formation
- Constipation
- Milk-alkali syndrome
- Hypercalcemic crisis
Structural component of bones, teeth and phospholipids throughout the body
Phosphorus
Synthesis of dna and rna, coenzyme in many chemical reactions
Phosphorus
Buffer system as a phosphate
Phosphorus
Phosphorus has an inverse relationship with __________ in the body
calcium
Dietary Sources of Phosphorus
- Dairy and meat products
- Processed foods
Phosphorus RDA for adults
700 mg/day
RDA Phosphorus upper levels is listed as _________________ for adults 19-70 years of age
4,000 mg/day
Phosphorus Deficiency
- Bone loss and muscle weakness
________ levels of calcium accompany ____ levels of phosphorus
High; low
Excess levels of Phosphorus are associated with ________________________ = __________
low serum calcium levels; tetany
Clients with compromised renal status = _________________________________
elevated phosphorus levels
Bones in the body
Magnesium
Nature’s calcium channel blocker – decreases blood pressure and smooth muscle contraction
Magnesium
Coenzyme in energy metabolism and a neurotransmitter
Magnesium
Regulates blood pressure and blood clotting by balancing these effects
Magnesium
Dietary Sources of Magnesium
- Sunflower seeds, legumes, dark green leafy vegetables
- Chocolate cocoa, nuts, and seafood
Magnesium RDA for adult males
400-420 mg/day
Magnesium RDA for adult females
310-320 mg/day
Magnesium Deficiency
- Malabsorption problems and suffer chronic alcohol abuse
- Increased magnesium excretion (chronic use of laxatives)
- Manifestations: muscle weakness, mental status changes, tetany like symptoms, mental status changes
Excess Magnesium
- renal failure, dehydration states, diarrhea, alkalotic imbalances
maintains protein structure because of the disulfide linkages between parallel peptide chains
Sulfur
Activates enzymes
Sulfur
Participates in detoxification reactions by which toxic materials conjugate with active sulfate and convert them to non-toxic forms which are excreted in the urine
Sulfur
Protein contains about ___ sulfur so that a diet adequate in protein will contain enough sulfur
1%
Trace Minerals
- Iron
- Iodine
Component of RBCs in hemoglobin formation and as a component of muscles in the form of myoglobin
Iron
Stored and transported in the body through a series of blood carrying proteins
Iron
is the iron-holding part of the hemoglobin molecule and is usually found in animal sources
Heme
Non-heme sources of iron are usually found in
plant sources
promotes iron absorption
Vitamin C
Dietary Sources of Iron
Meat, poultry, fish
RDA of Iron for adult male
8 mg/day
RDA of Iron for adult female
18 mg/day 19-50 yo, and 8 mg/day for 51 and over
Iron Deficiency
- NUTRITIONAL ANEMIA – IRON DEFICIENCY ANEMIA – fatigue, weakness, headache, pallor
- Pica
- Females due to menstrual flow, pregnant females
due to dilutional anemia in pregnancy
Excess Iron
- Iron overload symptoms include tissue damage, infections, liver damage
- Hemochromatosis
- Pediatric clients – at risk
Important component of thyroid hormone (t3, t4 and TSH)
Iodine
Growth and development, reproduction and balance of metabolic rate and temperature
Iodine
Dietary Sources of Iodine
- Saltwater fish and shellfish
- Iodized salt (fortified)
- Broccoli, brussel sprouts and cabbage
thyroid antagonist, interfered with the body’s absorption of iodine
Broccoli, brussel sprouts and cabbage
Iodine Deficiency
- Goiter formation
- Hypothyroid clinical states exist due to insufficient hormones, this can lead to cretinism (congenital condition due to maternal deficiency) and myxedema (deficiency seen in children and adults due to decreased thyroid activity)
- Manifestations: slowing down of metabolism, weight gain,
temperature intolerance (cold), hypotension, bradycardia
and constipation
congenital condition due to maternal deficiency
cretinism
deficiency seen in children and adults due to decreased thyroid activity
myxedema
Iodine RDA
150ug
Excess Iodine
- Accidental exposures to excess iodine levels during pregnancy can lead to teratogenic effects
- Manifestations: opposite of deficiency
Iron overload symptoms include
tissue damage, infections, liver damage