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Path: Env

common factors

Risk Assesment is based on? 1) Hazard ID 2) Dose response 3) exposure assesment 4) Risk characterization
when a patient asks am I at risk have these in mind 1) existance of hazard 2) exposure 3) level of risk
EPAs basis for hazardous nature 1) no level at which it is not hazardous, 2) benign tumor - malignant tumor 3) animals are fine models
signs of tobacco in adultes 1) rhinitis/pharyngitis 2) conjunctival irritation 3) headache 4) wheezing 5) exacerbation of chronic resp conditions
signs of tobacco in kids asthma, URTI, Otitis media, snoring, pneumonia and bronchitis
effects on the lungs of children exposed to tobacco reduced growth and function with doubled incidence of infection and pneumonia
when is maternal smoking damage most pronounced 20-36 weeks
what are some fetal dev side effects of smoking in the maternal pregnancy abruptio placenta, placenta previa, premature rupture of the membrane
when does tobacco exposure increase the risk of SIDS in utero and post natal (lactation too)
what are some volatile organic compounda formaldehyde, benzene, pesticides, solvents cleaning agents
key signs of volatile exposure Eyes, Nose, Throat irritation, Headache, Allergic skin rx, Dyspnea, decreased serum cholinesterase, Nausea emesis, epistaxis (nose bleed) fatique dizzines
how do you diagnose volatile exposure new anything, cleaners, remodeling, others complaining
what are the four types of radiation alpha, Beta, gamma, X-ray
what is the radiation that is stopped by lead adn concrete but passes through organic matter gamma and x
what are sources of natural radiaiton sun and cosmic rays as well as uranium potassium radon
why do we worry about radiation stochastic (cancer especially kids who have more dividing cells) and non-stochastic such as radiation sickness that includes damage to bone marrow, destruction of intestinal lining adn damage to the CNS
which radiation can we inhale and ingest alpha and beta
gamma does the most damage but you can be burned by? B particles
most heavy metals that are hazardous are 25% ARE heavy metals number 123 aresenic, lead, mercury
cadmium and chromium (6) are what level on the toxin scale 7 and 16
mercury exposure always has? tremor
cadmium hurts kidneys and bone
chromium hurts nasal and skin ulcers with incresaed risk of leukemia
aluminum linked to alzheimers may result in anemia and osteodystrophy
Iron hepatotoxin that causes vasodepression can occur up to 6 weeks after exposue
too much zinc cramps nausea vomiting and lower HDL
lead can cause reversal of dev. in kids
treat lead poisoning with chelators that make compound that drive lead out of the body
two types of asbestos fibers serpentine and amphiboles
what are serpentine fibers like small and DOES NOT DEPOSIT
90% of the worlds asbestos is serpentine
what is amphiboles asbestos long slender very brittle which makes them be trapped in the lungs
what diseases are associated with asbestos asbestosis, mesothelioma and lung cancer (increased in those who smoke)
what is the acceptible level of lead in children less than 10 ug/DL (adults are 25)
how do you diagnose lead toxicity whle blood level vs. whole body burden (just the blood)
Lead poisoning in children can present as? anorexic constipation and altering between hyperactivity and lethargy
Chornic exposure to lead results in peripheral neuropathy and anemia
what effect do new pesticides (organophasphate and carbamates have on the body bind to ach esterase so that there is no breakdown of Ach resulting in unopposed Ach stim
acute symptoms of new pesticide inhalation think all things autonomic
when should pesticide exposure make you think life threatening LOC, Incontinence, Seizures, Resp. Depression
Treat pesticide exposrue oxygen and atropine
pyrethroids mimix organophasphate toxicity but mostly act at CNS with seizures, disturbed consciousness adn paresthesia
how do you treat pyethroid exposure vit e? stop paresthesia
Who is hazardous to the lungs asbestos
who is hazardous to the kidneys chromium and cadmium
who is hazardous to the hematopoietic cells arsensic, aluminum, lead
who is hazardous to the liver iron and inorganic mergury
who is hazardous to the CNS elemental and organic mercury as well as arsenic and lead
Created by: jmuame03