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* Dried red maple leaves - contain gallic acid, which may be involved in Heinz body formation. <ref name="maple>Alward A, Corriher C, Barton M, et al. (2006) Red maple (Acer rubrum) leaf toxicosis in horses: a retrospective study of 32 cases. '''J Vet Intern Med''' 20: 1197 – 1201</ref>
* Dried red maple leaves - contain gallic acid, which may be involved in Heinz body formation. <ref name="maple>Alward A, Corriher C, Barton M, et al. (2006) Red maple (Acer rubrum) leaf toxicosis in horses: a retrospective study of 32 cases. '''J Vet Intern Med''' 20: 1197 – 1201</ref>
−* Garlic - can be used as an antifungal agent in stock feed,
+* Garlic - can be used as an antifungal agent in stock feed.
+==Clinical signs==
+Clinical signs depend on the oxidant and the time since intoxication. Mucous membranes can be pale if there is significant anaemia or cyanotic if there is methaemoglobinaemia. Anaemia and/or methaemoglobinaemia can result in tachycardia, increased respiratory rate, weakness, depression and haemoglobinuria.<ref name="CVT"></ref> Vomiting, diarrhoea and anorexia may also be seen.
+==Laboratory findings==
+Heinz bodies are frequently missed on routine blood films as they tend not to stain well.<ref name="CVT"></ref> However they are easily seen on slides stained with new methylene blue and reticulocytes stains.
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