To make a quick and accurate diagnosis, a doctor will perform tests as well as inquire about any symptoms and previous medical history. Typical tests include:

  • Electrocardiogram (ECG): This test measures the electrical activity in the heart via electrodes attached to the skin. Abnormal or irregular impulses may indicate poor heart function due to a lack of oxygen to the heart. Certain electrical signal patterns may also help to indicate the location of a blockage.
  • Blood tests: Certain enzymes may be detectable in the blood if cell death results in damage to the heart tissue. A positive result indicates a heart attack.
  • Cardiac perfusion scan: This scan can show if the heart is getting enough blood and can check areas of damage after a heart attack.

Information from these tests, as well as the actual signs and symptoms, are used to help diagnose acute coronary syndrome and determine whether it should be classified as a heart attack or unstable angina.

Doctors may use other tests to determine if additional treatment is needed or if there are additional heart problems present.

Some doctors may order a person to wear a Holter monitor, which records the heart's electrical activity for 24 hours. The monitor helps to detect whether the person has abnormal heart rhythms or periods of inadequate blood supply that may not have any symptoms.

Additional tests may be ordered to rule out other causes as well as help to treat the person better.

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Acute coronary syndrome is a medical emergency and medical attention should be sought immediately.

This is a medical emergency. Immediate treatment is ordered for acute coronary syndrome. The short-term goals include relieving pain and improving blood flow to help restore heart function as quickly as possible.

Long-term goals include improving overall heart function, managing risk factors, and lowering the risk of a heart attack. Typical treatment includes a combination of medical drugs and surgical procedures.

Medications include:

  • Nitroglycerin
  • Antiplatelet drugs
  • Beta blockers
  • Angiotensin-converting enzyme (ACE) inhibitors
  • Angiotensin receptor blockers (ARBs)
  • Statins

People who call the emergency services may be instructed to take or be given aspirin in the ambulance. If medications fail to alleviate the problems and restore proper blood function, angioplasty and stenting as well as coronary bypass surgery may be necessary.

Lifestyle changes

In some people, acute coronary syndrome may be prevented. Heart disease can lead directly to acute coronary syndrome, but those who do not have heart disease can protect themselves by practicing a healthy lifestyle:

  • Following a heart-healthy diet: Eating a diet that includes fruits, vegetables, whole grains, and lean protein.
  • Not smoking: Those who smoke can try medicines and counseling to help them quit.
  • Being active: Engaging in regular exercise to stay physically fit. People should aim for moderate exercise at least 2-3 hours a week.
  • Paying attention to the numbers: People should know their blood pressure and cholesterol levels and understand what the numbers mean as well as the optimum range.
  • Maintaining a healthy weight.
  • Drinking alcohol in moderation: Drinking more than one or two alcoholic drinks per day can raise blood pressure.

People who have had problems such as a heart attack in the past may also be instructed to take one baby aspirin in addition to their daily medication. Aspirin helps to prevent platelets from forming clots and helps to reduce the risk of a second heart attack by around 22 percent.

With lifestyle changes and the right medication, it is possible to prevent acute coronary syndrome or to treat it and lead a normal life.