[P] Week 5: Environmental and Nutritional Disease - Part 1 Flashcards
What are the two dieatary Insufficiency?
- Primary Malnutrition
- Secondary Malnutrition
DIETARY INSUFFICIENCY
- It is commonly seen in chronically ill patients, elderly, or bed-ridden patients.
- Bed-ridden or hospitalized malnourished patients have an increased risk of infection, sepsis, impaired wound healing, and death after surgery
Secondary Malnutrition
DIETARY INSUFFICIENCY
What are the most obvious signs of secondary malnutrition?
- Depletion of subcutaneous fat in the arms, chest wall, shoulders, or metacarpal regions.
- Wasting of the quadriceps and deltoid muscles.
- Ankle or sacral edema.
Condition that lead to primary ort secondary malnutrition
- Poverty
- Acute and chronic illnesses with increased catabolism.
- Chronic alcoholism
- Ignorance and failure of diet supplementation
- Self-imposed dietary restrictions
- Other causes may also be GIT diseases and malabsorption syndromes, genetic diseases, and inadequate total parenteral nutrition (TPN).
Malnutrition is defined as the consequence of inadequate intake of protein and calories to meet the body’s needs.
Severe Acute Malnutrition (SAM)
SAM is formerly known as the?
Protein Energy Malnutrition
The WHO defines severe acute malnutrition (SAM) as a state characterized by a weight for height ratio that is ____ standard deviations below the normal range
three (3)
What are the Determination of State of Malnourishment
- Body Mass Index (BMI)
- Skinfold Thickness
- Measurement of Serum Proteins
DETERMINATION OF STATE OF MALNOURISHMENT
Computed using both the height and weight of person and then comparing it to a standardized chart
Body Mass Index (BMI)
DETERMINATION OF STATE OF MALNOURISHMENT
Classification:
- underweight
- Normal
- Overweight
- Obese
A. Below 18.5
B. 18.5 to 24.9
C. 25 to 29.9
D. Above 30
ABCD
In/de -crement of 5
DETERMINATION OF STATE OF MALNOURISHMENT
Measures fat stores and muscle mass.
Skinfold thickness
DETERMINATION OF STATE OF MALNOURISHMENT
Measurement of serum proteins (albumin, transferrin, and others) can provide an estimate of the adequacy of the visceral protein compartment.
Measurement of serum protein
What are the type of Severe Acute Malnutrition
- Marasmus
- Kwashiorkor
TYPES OF SEVERE ACUTE MALNUTRITION
- Develops when the diet is severely lacking in calories.
- Weight falls to 60% of normal for sex, height, and age.
- Growth retardation and loss of muscle mass and subcutaneous fat as a result of catabolism and depletion of the somatic protein compartment
Marasmus
TYPES OF SEVERE ACUTE MALNUTRITION
Manifestations include:
- Emaciated extremities
- Head appearing too large for the body
- Anemia
- Multivitamin deficiencies
- Defects in T cell immunity making them prone to infections
Marasmus
TYPES OF SEVERE ACUTE MALNUTRITION
- Occurs when protein deprivation is relatively greater than
the reduction in total calories. - Marked protein deprivation is associated with severe loss of the visceral protein compartment, and the resultant hypoalbuminemia gives rise to generalized or dependent
EDEMA.
Kwashiorkor
TYPES OF SEVERE ACUTE MALNUTRITION
- Characteristic skin lesions with alternating zones of hyperpigmentation, desquamation, and hypopigmentation, giving a “flaky paint” appearance.
- Hair changes includes loss of color or alternating bands of pale and darker colors, straightening, fine texture, and loss of firm attachment to the scalp.
Kwashiorkor
TYPES OF SEVERE ACUTE MALNUTRITION
- Other findings include:
o enlarged fatty liver
o apathy
o listlessness
o loss of appetite - This is the most common form of severe acute malnutrition among African children who have been fed a carbohydrate-rich diet.
Kwashiorkor
Enumerate the Eating Disorders
- Anorexia Nervosa
- Bulimia
EATING DISORDERS
- self-induced starvation, resulting in marked weight loss.
- It has the highest death rate of any psychiatric disorder.
Anorexia Nervosa
EATING DISORDERS
- Binge eating is the norm.
- They eat large amounts of food, principally carbohydrates, which are ingested, followed by induced vomiting.
- The problem here is that the stomach acid can go up to the esophagus and teeth, which can cause an injury.
Bulimia
VITAMIN DEFICIENCIES
important to maintain normal vision, regulation of cell growth an ddifferentiation, and regulation of life and metabolism
Vitamin A
VITAMIN DEFICIENCIES
name given to a group of related compounds that include retinol, retinal, and retinoic acid, which have similar biologic activities
Vitamin A
VITAMIN DEFICIENCIES
Sources of this vitamins comprise of:
- dairy
- oats
- carrots
- bread
- sweet potatoes.
Greatest sources include
- beef kidneys
- liver
- cod liver oil
- chicken liver
Vitamin A
VITAMIN DEFICIENCIES
Vitamin A deficiency occurs worldwide either as a
consequence of?
primary malnutrition or secondary to conditions that cause malabsorption of fats
VITAMIN DEFICIENCIES
Vitamin A deficiency manifestation:
- Xeropthalmia
- Xerosis conjunctiva
- Bitot spots
- Keratomalacia
A. dryness of the conjunctiva
B. buildup of keratin debris in small
opaque plaques
C. dry eyes - most devastating change
D. softening & destruction of the
cornea
- C
- A
- B
- D
VITAMIN DEFICIENCIES
Vitamin A is also good for skin. However, excessive use, such as using too many ____ and ____ treatments can lead to toxicity.
retinol products and isotretinoin
VITAMIN DEFICIENCIES
- Made from sunlight exposure.
- The major function is the maintenance of adequate levels of calcium and phosphorus to support metabolic functions.
Vitamin D
VITAMIN DEFICIENCIES
Vitamin D deficiency is called what in children and adult?
Children - Rickets
Adults - Osteomalacia
VITAMIN DEFICIENCIES
Vitamin D Deficiency
Manifestations include:
- Craniotabes (infants)
- Frontal bossing, squared appearance to the head (infants)
- Rachitic rosary (beading of the ribs)
- Pigeon breast deformity
- Lumbar lordosis
- Bowing of legs
VITAMIN DEFICIENCIES
In children, hypervitaminosis D may take the form?
metastatic calcifications of soft tissues such as the kidney
VITAMIN DEFICIENCIES
In adults, hypervitaminosis D it causes?
bone pain and hypercalcemia
VITAMIN DEFICIENCIES
The toxic potential of vitamin D is so great that in sufficiently large doses, it is a?
potent rodenticide
VITAMIN DEFICIENCIES
Prolonged exposure to normal sunlight does not produce
an excess of vitamin D, but ____ of orally administered vitamin can lead to hypervitaminosis
Megadoses
VITAMIN DEFICIENCIES
Vitamin C is also known as?
Ascorbic Acid
VITAMIN DEFICIENCIES
A deficiency of water soluble vitamin C leads to the development of?
Scurvy
characterized principally by bone disease in growing children and by hemorrhages and and healing defects in children & adults.
VITAMIN DEFICIENCIES
A person who has scurvy will have ____ when they brush their teeth
bleeding gums
VITAMIN DEFICIENCIES
TOF
The popular notion that megadoses of vitamin C protect against the common cold, or at least allay the symptoms, has not been borne out by controlled clinical studies
T
familliarize the table for virtamins and trace elements thank yew
facts
defined as an accumulation of adipose tissue that is of sufficient magnitude to impair health
Obesity
Obesity is associated with several of the most important diseases of humans, including ?
- Type 2 diabetes,
- dyslipidemia
- cardiovascular disease
- hypertension
- cancer
CLINICAL CONSEQUENCES OF OBESITY
- Insulin resistance & hyperinsulinemia
- Hypertriglycidemia & low HDL cholesterol levels
- Nonalcoholic fatty liver disease
- Cholelithiasis (gallstones)
- Obstructive sleep apnea
- Predisposing factor for osteoarthritis
- Increased incidence of certain cancers in overweight people, including cancers of the esophagus, thyroid, colon, and kidney in men and cancers of the esophagus, endometrium, gallbladder, and kidney in women
TOF
Diet is linked to cancer
TRUE
With respect to carcinogenesis, three aspects of the diet are of major concern, what are those?
- The context of exogenous carcinogens
- The endougenous syntehesis of carinigens from dietary components
- The lack of protective factors like vitamins C & E, betacarotene, and selenium
DIET AND CANCER
The context of exogenous carcinogens
It is involved in the development of hepatocellular carcinoma.
Aflatoxin
DIET AND CANCER
The endogenous synthesis of carcinogens from dietary components
Implicated in the generation
of gastric carcinomas.
Nitrosamines & nitrosamides
DIET AND SYSTEMIC DISEASES
Restricting sodium intake reduces?
Hypertension
DIET AND SYSTEMIC DISEASES
resulting in increased fecal bulk, is thought by some investigators to provide a preventive effect against diverticulosis of the colon
Dietary fiber or roughage
DIET AND SYSTEMIC DISEASES
n touted to protect against heart disease (and also against devils, werewolves, vampires, and, alas, kisses), although research has yet to prove this effect unequivocally
Lowly garlic
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Drug abuse generally involves the ____ beyond therapeutic or social norms, and may lead to drug addiction and overdose, both serious public health problems.
repeated or chronic use of mind-altering substances,
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Cocaine is extracted from the leaves of the coca plant and is usually prepared as what water-soluble powder,
cocaine hydrochloride
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
what are the way cocain can be induced
snorted or dissolved in water and injected subcutaneously
producing intense euphoria and neurologic stimulation, making it one of the most addictive drugs
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
TOF
It can precipitate arrhythmias, induce myocardial infarction, and cause hypopyrexia.
F
Myocardial Ischemia; Hyperpyrexia
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
In pregnant women, cocaine may cause
Acute decreases in blood flow to the placenta
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
In pregnant women, cocaine may cause acute decreases in blood flow to the placenta, resulting in?
fetal hypoxia and spontaneous abortion
Neurologic development may be impaired in the fetus of a pregnant woman who is a chronic drug user
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
With chronic cocaine users, it can eventually lead to?
perforation of the nasal septum, aside from decreased lung diffusing capacity and related cardiomyopathy.
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
OPIOIDS AND OPIATES
Opioid drugs of abuse include prescription drugs such as ?
- heroin
- oxycodone
- hydrocodone
- fentanyl
- tramadol
- methadone
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
a street drug derived from a poppy plant that is close to morphine
Heroin
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
The effects of heroin addiction on the CNS include?
- euphoria
- hallucinations
- somnolence
- sedation
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Most important adverse effects of heroin
- Sudden death
- Pulmonary injury
- Infections - skin, heart, liver, and lungs
- Skin lesions - most frequent telltale sign
▪ When injected, scarring occurs. - Kidney disease
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Methamphetamine produces a feeling of euphoria, which is followed by a?
crash
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Methamphetamine Long-term use leads to violent behaviors, confusion, and psychosis marked by
paranoia and hallucinations
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
This is also known as ____ or ____ and is closely related to amphetamines, but has a stronger effect in the CNS
speed or meth
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
this mental illness is linked to marijuana?
Schizophrenia
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Marijuana use causes
euphoria and a sense of relaxation
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Causes a heightened sensory perception (e.g., brighter colors/lights), laughter, altered perception of time, and increased appetite
Marijuana
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Marijuana is made from the leaves of the
Cannabis sativa plant
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Cannabis sativa plant, which contains the psychoactive substance known as
tetrahydrocannabinol (Δ9-THC)
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
About what percent of tetrahydrocannabinol (Δ9-THC) is absorbed when marijuana is smoked in a hand-rolled joint.
5 to 10%
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
TOF
Marijuana has the potential to treat nausea and can decrease pain. In other countries, if pain relievers are ineffective, it’s legal to use marijuana. However, this is still legal in the Philippines
F
illegal in PH
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
It is said that marijuana cigarettes contain a large number of carcinogens that are also present in?
tobacco
INJURY BY NONTHERAPEUTIC AND DRUGS OF ABUSE
Smoking marijuana cigarettes compared with tobacco cigarettes is associated with a?
3-fold increase in the amount of carcinogen inhaled and retained in the lungs
- Refers to conditions caused by exposure to chemical or physical agents in the ambient, workplace, and personal environment, including diseases of nutritional origin.
- Most diseases are caused or influenced by this
Environmental Diseases
- According to WHO, this can be defined as the increased interconnectedness and interdependence of people and countries to encourage economic growth. As a result, there is an increase in industrialization and
population. - Eventually, this leads to climate change.
Globalization
HEALTH EFFECTS OF CLIMATE CHANGE
Cardiovascular, cerebrovascular, and respiratory diseases, all of which will be exacerbated by?
heat waves and air pollution
HEALTH EFFECTS OF CLIMATE CHANGE
Gastroenteritis, cholera, and other foodborne and waterborne infectious diseases (causing diarrhea), caused by?
contamination
HEALTH EFFECTS OF CLIMATE CHANGE
TOF
Vector-borne infectious diseases resulting from changes in vector number and geographic distribution
related to increased temperatures, crop failures, and more less weather variation
F
extreme not less
HEALTH EFFECTS OF CLIMATE CHANGE
Malnutrition caused by changes in local climate that disrupt?
Crop production
- Toxicology is defined as?
The science of poisons
It studies the distribution, effects, and mechanisms of action of toxic agents. More broadly, it also includes the study of the effects of physical agents such as radiation and heat.
Toxicology
ENVIRONMENTAL POLLUTION
significant cause of morbidity and mortality worldwide, particularly among at-risk individuals with preexisting pulmonary or cardiac disease.
Air pollution
AIR POLLUTION
The ambient air in industrialized nations is contaminated with an unsavory mixture of gaseous and particulate pollutants, more heavily in cities and in proximity to heavy
industry.
Outdoor Air Pollution
AIR POLLUTION
outdoor air pollution In industrialized nations, it is more heavy / dense especially
in areas with
Heavy industry
Outdoor Air Pollution
In the United States, the Environmental Protection Agency
monitors and sets allowable upper limits for six pollutants:
- sulfur dioxide
- CO
- ozone
- nitrogen dioxide
- lead
- particulate matter
Air pollution is a significant cause of mortality and morbidity worldwide. The effects of air pollution are drastic among those with?
pulmonary / lung problems (asthma, pulmonary pneumonia, COPD)
HEALTH EFFECTS OF AIR POLLUTION
Short or Long Term Effects
✓ Affects Central Nervous System
✓ Cardiovascular diseases
✓ Respiratory diseases
✓ Impacts on liver
✓ Impacts on reproductive system
Long term effects
HEALTH EFFECTS OF AIR POLLUTION
Short or Long Term Effects
✓ Headache
✓ Ice inflammation
✓ Coughing
✓ Painful
✓ Pneumonia
✓ Breathing
✓ Bronchitis
✓ Skin irritation
Short term effects
HEALTH EFFECTS OF OUTDOOR AIR POLLUTANTS
Identify the pollutant
Populations at Risk: Healthy adults and children, Athletes, outdoor workers, Asthmatic
Effects:
✓ Decreased lung function Increased airway reactivity - Lung inflammation
✓ Decreased exercise capacity Increased hospitalizations
Ozone
HEALTH EFFECTS OF OUTDOOR AIR POLLUTANTS
Identify the Polutants
Population at Risk:
✓ Healthy adults
✓ Asthmatics
✓ Children
Effects:
✓ Increased airway reactivity
✓ Decreased lung function
✓ Increased respiratory infections
Nitrogen Dioxide
HEALTH EFFECTS OF OUTDOOR AIR POLLUTANTS
Identify the Polutants
Population at Risk:
✓ Healthy adults
✓ Individuals with chronic lung disease
✓ Asthmatics
Effects:
✓ Increased respiratory symptoms
✓ Increased mortality
✓ Increased hospitalization ✓Decreased lung function
Sulfur dioxide
HEALTH EFFECTS OF OUTDOOR AIR POLLUTANTS
Identify the Polutants
Population at Risk:
✓ Healthy adults
✓ Children
✓ Asthmatics
Effects:
✓ Altered mucociliary clearance
✓ Increased respiratory infections
✓ Decreased lung function
✓ Increased hospitalizations
Acid aerosols
HEALTH EFFECTS OF OUTDOOR AIR POLLUTANTS
Identify the Polutants
Population at Risk:
✓ Children
✓ Individuals with chronic lung or heart disease
✓ Asthmatics
Effects:
✓ Increased respiratory infections
✓ Decreased lung function
✓ Excess mortality Increased attacks
Particulates
GROUND LEVEL OZONE (O3)
- Ozone accumulates in the ____ (ground-level ozone) is one of the most pernicious air pollutants.
lower atmosphere
gas formed by the reaction of
nitrogen oxides and volatile organic compounds in the presence of sunlight. These chemicals are released by industrial emissions and motor vehicle exhaust.
Ground level ozone
GROUND LEVEL OZONE (O3)
a particularly important cause of morbidity and mortality related to pulmonary inflammation and secondary cardiovascular effects
Particulate matter (known as “soot”)
GROUND LEVEL OZONE (O3)
Black powdering or gray substance consisting largely amorphous carbon produce by incomplete burning of organic matte
SOOT
AIR POLLUTION
- a systemic asphyxiant that is an important cause of accidental and suicidal death.
- Victims are often unaware that they are undergoing poisoning already
Carbon Monoxide (CO)
AIR POLLUTION
can’t be seen (colorless), smelled (odorless), heard, tasteless gas, and
can be stopped.
Carbon monoxide (CO)
AIR POLLUTION
- The diagnosis is made by measuring carboxyhemoglobin levels in the blood.
o It will alarm when there is an increased level
Carbon monoxide (CO)
CARBON MONOXIDE (CO)
Acute or Chronic poisoning
* Generally, a consequence of accidental exposure or suicide attempt.
* In light-skinned individuals, acute
poisoning is marked by a characteristic generalized cherry-red
color of the skin and mucous membranes, which results from high
levels of carboxyhemoglobin.
Acute poisoning by CO
CARBON MONOXIDE (CO)
Acute or Chronic poisoning
- It develops because carboxyhemoglobin, once formed, is remarkably stable
- Even with low-level, but persistent, exposure to CO, carboxyhemoglobin may rise to life- threatening levels in
the blood. - The slowly developing hypoxia can insidiously evoke widespread ischemic changes in the CNS; these are particularly marked in the basal ganglia and lenticular nuclei
Chronic poisoning by CO
The most common pollutant is tobacco smoke, but additional offenders are CO, nitrogen dioxide, and asbestos.
Indoor Air Pollution
Indoor Air Pollution
containing polycyclic aromatic hydrocarbons generated by cooking oils and coal burning are important indoor pollutants in lower income parts of the world, particularly parts of Asia.
Volatile substances
Indoor Air Pollution
containing various oxides of nitrogen and carbon particulates, is an irritant that predisposes exposed persons to lung infections and may contain carcinogenic polycyclic hydrocarbons
Smoke from burning of organic materials
Indoor Air Pollution
range from microbiologic agents capable of causing infectious diseases such as legionnaires’disease, viral pneumonia, and the common cold to less threatening but nonetheless distressing allergens derived from pet dander, dust mites, fungi, and molds that are variously responsible for rhinitis, eye irritation, and asthma.
Bioaerosols
Indoor Air Pollution
a radioactive gas derived from uranium widely present in soil and in homes, can cause lung cancer in
uranium miners.
Radon
It is also suspected that low-level chronic exposures in the home increase lung cancer risk, particularly in those who smoke tobacco.
Indoor Air Pollution
number one cause of lung cancer among nonsmokers, according to EPA estimates
Radon
Indoor Air Pollution
second leading cause of lung cancer.
Radon
Indoor Air Pollution
s used in the manufacture of building materials (e.g., cabinetry, furniture, adhesives) and mayaccumulate in the air in poorly ventilated housing
Formaldehyde
Indoor Air Pollution
at what concentration of formaldehydh causes breathing difficulties and a burning sensation in the eyes and throat and can trigger asthma attacks
0.1 ppm or higher
Indoor Air Pollution
TOF
Formaldehyde is classified as a car for humans and animals.
False
Carcinogen
Indoor Air Pollution
TOF
Exposure to formaldehyde in the home can irritate eyes, nose, throat, and skin
T
Indoor Air Pollution
TOF
formaldehyde can also increase breathing problems for people with health conditions like asthma, Acute obstructive pulmonary disorder (AOPD)
False
Chronic Obstructive Pulmonary Disorder