Which of the following is NOT a physical sign of acute toxic reactions to inhalants?

The correct answer identifies urinary incontinence as not being a physical sign of acute toxic reactions to inhalants. Inhalants primarily affect the central nervous system, leading to a range of acute toxic reactions that include symptoms such as arrhythmias, respiratory depression, and pupillary dilation.

Arrhythmias can occur due to the impact of inhalants on heart function and electrical conduction pathways, making it a notable sign of acute toxicity. Similarly, respiratory depression is a critical concern with inhalant use since these substances can depress the respiratory centers in the brain, leading to inadequate breathing. Pupillary dilation is also commonly observed in acute toxic reactions as the body responds to the psychoactive effects of the inhalants.

In contrast, urinary incontinence is generally not associated with inhalant toxicity. While incontinence can result from various factors, including neurological impairment or specific medications, it does not specifically align with the acute effects typically seen from inhalant abuse. This distinction helps clarify the typical physiological signs of acute inhalant toxicity versus other potential symptoms that may arise from different causes.