Final answer:
Immediate cessation of an activity is warranted if a person experiences constriction of the airway, a swollen throat, shock with a severe drop in blood pressure, or symptoms such as a rapid pulse, dizziness, or loss of consciousness. These are critical signs of distress.
Step-by-step explanation:
Four signs of distress that mean the STOP procedure should be initiated immediately include:
- Constriction and tightening of the airway, which can indicate a severe allergic reaction or an asthma attack, requiring immediate medical attention.
- A swollen throat or the sensation of a lump in your throat that makes it difficult to breathe can be a sign of anaphylaxis, a life-threatening allergic reaction.
- Shock with a severe drop in blood pressure can lead to insufficient blood flow to organs, posing a critical risk.
- A rapid pulse, dizziness, lightheadedness, or loss of consciousness can signify various emergencies, including shock, severe allergic reaction, or even a stroke (where the FAST acronym applies).
The swift identification of these signs is crucial for the timely cessation of activity and the summoning of emergency medical services.