EMERGENCY CARE
These summaries explain what a medical emergency can look or feel like, why it matters, and when 999 may be the right call. Acting quickly can make a real difference.
Heart Attack
What it is and how it may present
A heart attack happens when the blood supply to part of the heart muscle is suddenly blocked. This prevents oxygen from reaching the heart tissue and can cause damage if not treated quickly. Symptoms vary from person to person and do not always look dramatic.
Common signs include chest pain or pressure, which may spread to the arm, neck, jaw, back, or stomach. Some people experience shortness of breath, nausea, sweating, light-headedness, or an overwhelming sense that something is seriously wrong. Others, particularly women, older adults, and people with diabetes, may have more subtle or atypical symptoms.
Why this is a medical emergency
A heart attack is a medical emergency because heart muscle begins to suffer damage as soon as blood flow is reduced. The longer treatment is delayed, the greater the risk of permanent damage, heart failure, or life-threatening complications.
Although a heart attack is not the same as a cardiac arrest, it can trigger dangerous heart rhythm disturbances. In some cases, this can cause the heart to stop pumping effectively, leading to cardiac arrest. Early treatment reduces this risk and improves survival.
Why emergency services may be appropriate
Emergency services may be appropriate whenever a heart attack is suspected. Calling 999 allows for rapid assessment, monitoring, and early treatment, which can limit heart damage and prevent deterioration. Acting quickly can significantly improve outcomes.