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El médico diagnosticará el ataque cardíaco con base en los signos y síntomas del paciente, sus antecedentes médicos personales y familiares, y los resultados de una o más pruebas como electrocardiograma (ECG), pruebas de sangre y angiografía coronaria.

Peripheral artery disease happens when plaque builds up in the arteries that carry blood to your head, organs, and limbs. Plaque buildup leads to atherosclerosis, which limits oxygen-rich blood flow to your organs and other parts of your body. This Health Topic focuses on peripheral artery disease that affects blood flow to the legs.

Treatment for pneumonia depends the type of pneumonia you have, the germ causing your infection, and how severe your pneumonia is. Bacterial pneumonia is treated with medicines called antibiotics. Antibiotics don't work when the cause of pneumonia is a virus. If you have viral pneumonia, your doctor may prescribe an antiviral medicine to treat it.

Oxygen therapy is a short- or long-term treatment that delivers oxygen gas for you to breathe to help increase the amount of oxygen in your blood.

To diagnose arrhythmia, your doctor will ask you about your symptoms, your medical history, and any signs of arrhythmia in your family. Your doctor may also do an EKG and a physical exam as part of your diagnosis. Additional tests may be necessary to rule out another cause or to help your doctor decide on treatment.

If you have been diagnosed and treated for arrhythmia, make sure to follow your treatment plan. Your ongoing care may focus on reducing the chance that you will have another episode or a complication. Keep your regular appointments with your doctor. Ask about heart-healthy lifestyle changes that you can make to keep your arrhythmia from happening again or getting worse.

A doctor will diagnose atrial fibrillation based on your medical and family history, a physical exam, the results from an electrocardiogram (EKG), and possibly other tests and procedures.

If you have been diagnosed with atrial fibrillation, it is important that you continue your treatment. Follow-up care can help your doctor check your condition and talk to you about how to prevent repeat events and what to do in an emergency.

Your doctor may diagnose pulmonary hypertension based on your risk factors and symptoms. A diagnosis of pulmonary hypertension will be made if tests show higher-than-normal pressure in the pulmonary arteries.

Obesity hypoventilation syndrome is a breathing disorder that affects some people who have been diagnosed with obesity. The syndrome causes you to have too much carbon dioxide and too little oxygen in your blood. Without treatment it can lead to serious and even life-threatening health problems.