A number of toxins may be associated with hypertension. Usually these exert an effect following an acute exposure but some can cause a chronic hypertension.
Toxins associated with hypertension:
(1) heavy metal poisoning with
(2) scorpion venom
(4) black widow spider venom
(5) organophosphate pesticide
(6) nicotine exposure associated with tobacco handling
(7) ergot alkaloids
Diagnosis of toxin-induced hypertension:
(1) increase in blood pressure following exposure to a toxin
(2) exclusion of other causes including acute stress
(3) correction of blood pressure on removal or disappearance of the toxin
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