Final answer:
Chest pain is the emergency that requires immediate 911 assistance because it may indicate a life-threatening condition like a heart attack. Muscle cramps and minor cuts can typically be treated with first aid, and shortness of breath may require a call to 911 depending on other symptoms.
Step-by-step explanation:
The emergency situation which requires a fitness professional to call 911 immediately among the options provided is Chest pain. This is because chest pain can be a symptom of a serious and life-threatening condition, such as a heart attack or other cardiac event. In contrast, a muscle cramp and a minor cut are usually not life-threatening and can often be treated with first aid on the spot. Proper first aid for a muscle cramp might involve the PRICE method (Protection, Rest, Ice, Compression, and Elevation). Shortness of breath could be serious, especially if accompanied by other symptoms, but it may not always require immediate 911 assistance like chest pain does.
Referring to the information provided from the reference:
- Heart failure is a chronic condition where the heart doesn't pump blood as well as it should.
- Cardiac arrest is when the heart suddenly stops beating, which is an immediate medical emergency and more life-threatening in the short term.
- For the diseases and disorders mentioned: A corresponds to coronary artery disease, B to hypertension, C to peripheral artery disease, and D to atherosclerosis.