What symptoms are associated with a scorpion bite?

A scorpion bite can indeed lead to a range of symptoms that may affect various systems. This includes localized effects as well as systemic reactions.

Localized itching and paresthesias are common at the site of the sting; these can result from the irritant properties of the venom affecting the nerve endings in the skin. Such localized reactions can vary in intensity depending on the species of scorpion and the individual's sensitivity.

On the systemic level, scorpion venom can lead to autonomic nervous system stimulation, resulting in symptoms like vomiting and hypertension. These symptoms arise from the venom's neurotoxic effects, leading to overstimulation of adrenergic receptors which can cause increased blood pressure and gastrointestinal disturbances.

Given these details, both localized symptoms such as itching and paresthesias, as well as systemic symptoms like vomiting and hypertension, are valid associations with a scorpion sting, which is why the correct answer includes both A and B.