What kind of effects can be classified as “acute”?

Acute effects are those that are experienced immediately or shortly after exposure to a risk factor, such as a toxin or a physical injury. These effects typically manifest quickly and are often identifiable within a short timeframe. For example, if someone were to ingest a harmful substance, the acute effects might include symptoms like nausea, headache, or convulsions, which arise promptly after the exposure. Recognizing acute effects is crucial in medical and safety contexts because it allows for timely interventions and treatments to address the immediate health concerns.

On the other hand, chronic effects, which might relate to the other options, develop over longer periods and may not require urgent medical attention at the onset, which is why those choices do not fit the definition of acute effects. Thus, the answer accurately reflects the immediate nature of acute effects.