Which condition is characterized by hyperthermia, wide complex tachycardia, hypotension, and flushed but dry skin after ingestion?

The condition presented in the question is best characterized by hyperthermia, wide complex tachycardia, hypotension, and flushed but dry skin after ingestion of a substance. This profile is indicative of a tricyclic antidepressant (TCA) overdose.

In TCA overdose, the mechanism of toxicity includes anticholinergic effects, which lead to symptoms such as dry skin and flushed appearance due to vasodilation and decreased perspiration. The wide complex tachycardia is a direct result of the drug's effects on cardiac conduction, specifically blocking sodium channels, which can lead to life-threatening arrhythmias. Hyperthermia can occur due to the combination of anticholinergic effects and increased metabolic demand or reduced heat dissipation. Hypotension is also a common finding due to the cardiovascular effects of TCAs, which include vasodilation and decreased myocardial contractility.

This combination of symptoms—hyperthermia, tachycardia, hypotension, and flushed dry skin—clearly aligns with TCA overdose, which differentiates it from the other options, where such a presentation would not be expected. This reinforces the identification of TCA overdose as the correct answer to the clinical scenario described.