TOXICOLOGY EXAM II TOXICANTS UPDATED ACTUAL
EXAM COMPLETE QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED
A+
Ionizing Radiation ✓ Alpha particles, beta particles, gamma
rays, x-rays, some UV light
Non-ionizing Radiation ✓ Microwaves, infrared, radio, sound waves,
visible light
UV-B ✓ 290-320, causes erythema
UV-A ✓ 320-400, hyperpigmentation, thickening of
skin
Common Rue ✓ Herb of Grace, blistering of skin, contains
furocoumarins
Arsenic ✓ toxic metalloid, used in chemical warfare,
occupational exposure, fatality by
ingestion, skin/lung/bladder/kidney/liver
cancer and peripheral neuropathy with
prolonged exposure; oxidative DNA
, damage, enhanced cell proliferation; treat
with fluids and chelators (penicillamine or
succimer); can cause scaling of skin and
circulatory problems
Lead ✓ Exposure from food, water, occupation;
symptoms include HA, insomnia,
abdominal pain, decreased appetite,
constipation, anemia(due to inhibition ALA,
ALAD, ferrochelatase); additional sx for
children: loss of developmental skills,
behavior/attention problems, hearing loss,
kidney damage, lowered IQ, lowered body
growth, encephalopathy; acute exposure:
cerebral edema chronic exposure:
demyelination in PNS and irreversible
axonal degeneration, peripheral
neuropathy, disruption Ca homeostasis,
alteration of BBB, affects neurotransmitter
systems, respiratory/digestive tumors; high
Ca intake for prophylaxis; chelators as tx
Mercury ✓ Sources: dentistry materials, wood
preservatives, insecticides, batteries,
atmosphere, mining/smelting, fish
EXAM COMPLETE QUESTIONS WITH DETAILED VERIFIED
ANSWERS (100% CORRECT ANSWERS) /ALREADY GRADED
A+
Ionizing Radiation ✓ Alpha particles, beta particles, gamma
rays, x-rays, some UV light
Non-ionizing Radiation ✓ Microwaves, infrared, radio, sound waves,
visible light
UV-B ✓ 290-320, causes erythema
UV-A ✓ 320-400, hyperpigmentation, thickening of
skin
Common Rue ✓ Herb of Grace, blistering of skin, contains
furocoumarins
Arsenic ✓ toxic metalloid, used in chemical warfare,
occupational exposure, fatality by
ingestion, skin/lung/bladder/kidney/liver
cancer and peripheral neuropathy with
prolonged exposure; oxidative DNA
, damage, enhanced cell proliferation; treat
with fluids and chelators (penicillamine or
succimer); can cause scaling of skin and
circulatory problems
Lead ✓ Exposure from food, water, occupation;
symptoms include HA, insomnia,
abdominal pain, decreased appetite,
constipation, anemia(due to inhibition ALA,
ALAD, ferrochelatase); additional sx for
children: loss of developmental skills,
behavior/attention problems, hearing loss,
kidney damage, lowered IQ, lowered body
growth, encephalopathy; acute exposure:
cerebral edema chronic exposure:
demyelination in PNS and irreversible
axonal degeneration, peripheral
neuropathy, disruption Ca homeostasis,
alteration of BBB, affects neurotransmitter
systems, respiratory/digestive tumors; high
Ca intake for prophylaxis; chelators as tx
Mercury ✓ Sources: dentistry materials, wood
preservatives, insecticides, batteries,
atmosphere, mining/smelting, fish
