Malnutrition and GI
Parasitology
in the Community
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Jill Gallin, CPNP |
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Assistant Professor of Clinical Nursing |
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The Science of Nursing in the Community
N5290 |
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Malnutrition
The ‘other end’ of
malnutrition
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An escalating global epidemic of
overweight and obesity – “globesity” – is taking over many parts of the
world. If immediate action is not taken, millions will suffer from an array
of serious health disorders. |
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Obesity is one of today’s most
blatantly visible – yet most neglected – public health problems.
Paradoxically coexisting with undernutrition. |
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Protein Energy Malnutrition
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“Protein-energy malnutrition (PEM) is
by far the most lethal form of malnutrition. Children are its most visible
victims. Malnutrition, “the silent emergency,” is an accomplice in at least
half of the 10.4 million child deaths each year. These young lives are
prematurely – and needlessly – lost “ |
Slide 5
Who is at
Risk?
Protein Energy Malnutrition
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People of impoverished countries |
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seen in the midst of drought or
political turmoil. |
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However as many as 50% of elderly
persons in nursing homes in the U.S. suffer from protein-calorie
malnutrition. |
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Children |
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Pregnant women |
Micronutrient Deficiency
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Called “micronutrients” because they
are needed in only miniscule amounts, these substances are the “magic wands”
that enable the body to produce enzymes, hormones and other substances
essential for proper growth and development. |
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As tiny as the amounts are, the
consequences of their absence are severe. Their lack represents a major
threat to the health and development of populations the world over,
particularly to preschool children and pregnant women in low-income
countries. |
Global Health Macronutrient
Deficiency
Vitamin A Deficiency
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Vitamin A deficiency causes night
blindness and is the single most important cause of childhood blindness in
developing countries. Every year, about 500,000 children lose their sight as
a result of vitamin A deficiency. The majority (about 70%) die within one
year of losing their sight. |
Vitamin A Deficiency
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Vitamin A deficiency increases the risk
of severe illness, and even death, from common childhood infections such as
diarrheal diseases and measles. In developing countries 200–300 million
children of preschool age are at risk of vitamin A deficiency. |
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Vitamin A Deficiency
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Vitamin A deficiency may increase the
risk of maternal mortality in pregnant women. Nearly 600,000 women die from
childbirth-related causes each year, the vast majority of them from
complications which could be reduced through better nutrition, such as vitamin
A. |
Iron Deficiency
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"As many as 4–5 billion people,
66–80% of the world's population, may suffer from reduced learning ability
and work capacity due to iron deficiency. More than 30% of the world's
population, are anemic "
Battling iron deficiency anemia WHO 2002 |
Iron Deficiency
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Iron deficiency impairs the cognitive
development of children through to adolescence. |
Iron Deficiency
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Iron deficiency damages immune
mechanisms, and is associated with increased morbidity rates. |
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Iron Deficiency
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Iron deficiency impairs physical work
capacity in men and women by up to 30%. |
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Iron Deficiency
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Iron deficiency during pregnancy is
associated with multiple adverse outcomes for both mother and infant,
including increased risk of sepsis, maternal mortality, perinatal mortality,
and low birth weight. |
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Iron Deficiency
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Iron deficiency and anemia reduce
learning ability and the work capacity of individuals and entire populations,
bringing serious economic consequences and obstacles to national development. |
Epidemiology of Iron
Deficiency in the US
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prevalence of iron deficiency was
greatest |
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toddlers aged 1--2 years (7%) |
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adolescent and adult females aged
12--49 years (9%--16%) |
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The prevalence of iron deficiency was
approximately two times higher among non-Hispanic black and Mexican-American
females (19%--22%) than among non-Hispanic white females (10%). |
Manifestations of Iron
Deficiency
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Pale skin (race) |
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Fatique |
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Irritability |
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Weakness |
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More . . . |
Laboratory Findings in Iron
Deficiency Anemia
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Low Hgb/Hct |
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High RDW (microcytic cells) |
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Follow up with iron studies |
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Low serum ferritin |
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Low serum iron |
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High TIBC |
"* Get a good history"
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* Get a good history, rule out other
cause for anemia ie. LEAD |
Preventing Iron Deficiency
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Iron is found in foods like red meat,
egg yolks, and fortified flour, bread, and cereal |
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Breast feeding & iron fortified
formula |
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Screening |
Iodine Deficiency
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Iodine deficiency is the number one
cause of preventable brain damage, affecting millions of people worldwide. |
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Assessment of Iodine Deficiency Disorders and Monitoring their
Elimination: A Guide for Programme Managers 2nd edition. WHO/UNICEF/ICCIDD
2001 |
Iodine Deficiency
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The problem of iodine deficiency is
especially serious for pregnant women and young children. During pregnancy,
even a mild deficiency of iodine can reduce brain development of the fetus
limiting the intellectual ability of an individual for life. |
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Iodine Deficiency
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Iodine deficiency can cause severe
mental and physical retardation, known as cretinism. |
Iodine Deficiency
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Iodine deficiency in chronic form, can
cause goiter (a disorder characterized by swelling of the thyroid gland) in
both adults and children. |
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Iodine Deficiency
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Iodine deficiency most commonly,
impedes fetal brain development. At the population level, the consequence of
iodine deficiency is a 10–15% lower average intellectual quotient (IQ), which
affects the social and economic development of both communities and nations. |
Iodine Deficiency
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The World Bank has estimated that,
combined with vitamin A deficiency and iron deficiency, iodine deficiency may
lower the economic wealth of a nation by as much as 5% every year. |
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"Case study:"
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Case study: |
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Zacharia arrives in East Harlem |
Manifestations of Iodine
Deficiency
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Goiter-enlarged thyroid cells and gland |
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Hypothyroidism: iodine is essential for
the production of thyroid hormones and normal thyroid function |
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Cretinism: physical and mental
retardation |
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Manifestations of Iodine
Deficiency
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Symptoms of hypothyroidism |
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Mental and physical sluggishness |
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Weakness |
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Fatigue |
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Cold intolerance |
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Weight gain |
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Depression |
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Many more . . . |
Where is Iodine Deficiency?
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Land locked areas without iodized salt:
Asia, Central Africa |
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Endemic goiters occur within groups of
people iving in geographical areas with iron depleted soil |
Laboratory Findings
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TSH high |
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Thyroid hormones low (T3 and T4) |
Preventing Iodine
Deficiency?
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Iodized salt |
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Seafood: fish and kelp |
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Dairy products |
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Plants grown in iodine rich soil |
Folic Acid Deficiency
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An estimated 300,000 children are born
each year with spina bifida and anencephaly, which are severe neural tube
defects. Approximately 75%, 225,000, of these affected births could be
prevented through increased consumption of synthetic folic acid by all women
of reproductive age. |
Gastrointestinal
Parasites
(Often associated with malnutrition)
The Culprits
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Ascaris lumbricoides (Round worm) |
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Trichurist (Whipworm) |
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Ancylostoma (Necator, Hookworm) |
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Strongyloides |
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Taenia (beef or port tapeworm) |
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Giardia lamblia (Giardia) |
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Entamoeba histolytica (Ameba) |
Signs and Symptoms of
Intestinal Parasites
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Varied organisms cause similar symptoms |
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Occasionally no symptoms |
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Symptoms may be caused by presence of
multiple organisms |
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Malabsorption and diarrhea |
Amebiasis
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Ingested in fecally contaminated water |
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May be asymptomatic |
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Diarrhea alternating with constipation |
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Pain on defecation |
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Some blood in stool |
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Can cause liver abcess |
Amebiasis Treatment
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Metronidazole |
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Secnidazole |
Giardia
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Foul smelling diarrhea associated with
flatulence, abdominal pain, distention and anorexia |
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Weight loss |
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FTT |
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Anemia |
Giardia Treatment
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Furazolidone |
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Metronidazole |
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Secnidazole |
Ascaris (Roundworm)
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Intermittent, no foul-smelling diarrhea |
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Abdominal protrusion |
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Pallor |
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Weight loss |
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Abdominal pain |
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Poor appetite, malnutrition |
Ascaris (Roundworm)
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Migratory |
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Large parasite load can cause
intestinal obstruction with migration of worms into the mouth and nose. |
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Can cause persistent cough-”Loeffler’s
Syndrome” |
Ascaris Treatment
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Albendazole |
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Mebendazole |
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Piperazine |
Hookworm
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Penetrates skin of hands and feet when
touching contaminated earth or walking barefoot |
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Stinging, burning, papulovesicular rash
1-2 weeks |
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Abdominal pain |
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Diarrhea |
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Can cause rectal prolapse |
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Hookworm Treatment
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Mebendazole |
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Albendazole |
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1 ounce ap of the higueron tree mixed
with 1 ounce of milk and some honey |
Tapeworm
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Ingesting infected cow or pork |
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Abdominal pain |
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Hunger |
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Weight loss |
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Anemia |
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Passage of flat white worm segments |
Tapeworm Treatment
Six year old boys
‘Full grown’ woman
Eleven year old boy
References
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www.who.org |
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www.cdc.org |
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The Stanford Guide to Antimicrobial
Therapy |
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AAP RedBook |