Exam 2 Flashcards
Strychnine: Tk
rapidly absorbed in GI, low PP binding, crosses BBB, enterohepatic recerculation
Strychnine: MoA
blocks post-synaptic inhibatory receptors
Strychnine: Signs
rapid onset, panting, vomiting, mydriasis, stiffness, hyperthermia, progresses to tonic seizures with stimulus
Strychnine: Dx
ID it, history, signs
Strychnine: Tx
decontaminate, supportive (avoid opioids, ketamine)
Zinc Phosphide: Properties
decomposes w/in 2wks, liberates toxic gas when exposed to acidic environment
Zinc Phosphide: Tk
corrosive, phosphine gas excreted in lungs
Zinc Phosphide: MoA
unkown
Zinc Phosphide: Signs
rapid onset, anorexia, v/d +/- blood, weakness, ab pain,
Zinc Phosphide: Dx
ID it, history, signs
Zinc Phosphide: Tx
decontaminate (good ventilation), supportive
Fluoroacetate: Tk
Readily absorbed by ingestion, inhalation, or through open wounds, distribution throughout body, toxic metabolites
Fluoroacetate: MoA
disrupts kreb’s cycle
Fluoroacetate: Signs - Dogs
v/d, CNS stimulation
Fluoroacetate: Signs - Large Animal
heart failure, arrhythmias
Fluoroacetate: Dx
ID it, history, signs
Fluoroacetate: Tx
acetate donors, supportive
Strychnine: Function
Rodenticide
Zinc Phosphide: Function
Rodenticide
Fluoroacetate: Function
Rodenticide
FA Phenoxy Derivatives: Function
herbicide
FA Phenoxy Derivatives: Tk
readily absorbed by ingestion or inhalation, distributed throughout body, crossed BBB
FA Phenoxy Derivatives: MoA
uncouple oxidative phosphorilation
FA Phenoxy Derivatives: Signs
anorexia, rumen atony, bloat, diarrhea, weakness
FA Phenoxy Derivatives: Dx
ID it, history, signs
FA Phenoxy Derivatives: Tx
detox, supportive
Dipyridyl: Function
herbacides (paraquat, diquat)
Dipyridyl: Properties
rapidly inactivated by light, soil, and alkalin, water soluble
Dipyridyl: Tk
poorly absorbed in GI, concentrates in lung
Dipyridyl: MoA
membrane damage, production of free radicals
Dipyridyl: Signs
Early - vomiting, anorexia, depression, ataxia
Delayed - tachypnea, dyspnea, harsh lung sounds
Dipyridyl: Dx
ID it, radiography (lung changes), history, signs
Dipyridyl: Tx
detox, supportive (no O2), antioxidants
Pentachlorophenol: Function
fungicidal (wood treatment)
Pentachlorophenol: Properties
lipid soluble, volatile
Pentachlorophenol: Tk
readily absorbed by ingestion, inhalation, and skin, distributed throughout body
Pentachlorophenol: MoA
uncouples oxidative phosphorylation
Pentachlorophenol: Signs
Acute - hyperthermia, tachycardia, dyspnea, cyanosis, seizure
Chronic - wt. loss, dec. milk production, anemia, fetal malformations
Pentachlorophenol: Dx
ID it, history, signs
Pentachlorophenol: Tx
detox, supportive
Nonprotein Nitrogen: Function
Feed additive (urea)
Nonprotein Nitrogen: Tk
metabolizes to ammonia
Nonprotein Nitrogen: MoA
ammonia is toxicant, inhibits Citric Acid cycle
Nonprotein Nitrogen: Signs
restlessness, aggression, muscle tremors, salivation, colic, bloat, rumen stasis, ammonia odor
Nonprotein Nitrogen: Dx
ID it, history, signs
Nonprotein Nitrogen: Tx
detox, symptomatic
Ionophore: Function
feed additive, growth promoter, anticoccidial
Ionophore: Tk
ruminants absorb 50%, monogastrics absorb 100%, distributed throughout the body