In-depth

Symptoms

Fatigue

Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.

Shortness of breath

Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.

Unexplained weight loss

Unexplained weight loss: Symptom — Overview covers possible causes of unexplained weight loss.

Tests and diagnosis

Chest X-rays

Even with today's high-tech medical devices, the basic chest X-ray remains an important tool in diagnosing various conditions. Here's a look at how it works.

CT scan

A CT scan is an imaging test that uses X-rays to produce detailed images of the inside of your body.

Echocardiogram

Echocardiogram allows your doctor to see your heart in motion. Here's what you need to know about the test.

Spirometry

Spirometry is a simple office test used to check how well your lungs are working.

Stress test

A stress test is used to diagnose coronary artery disease and heart arrhythmias, as well as guide treatment of heart disorders.

Treatments and drugs

Hyperbaric oxygen therapy

Hyperbaric oxygen therapy, a procedure used to increase blood oxygen levels, can help wounds heal, fight infection and treat decompression sickness.

Lung transplant

For people with lung disease, a lung transplant may be an option when other treatments are no longer helpful or lung function is life-threatening.

Mar. 18, 2014