Dr. Shannon Rivas MD

Recommended Articles

• What Are the Risk Factors for Lung Cancer?

  A risk factor could be any one of numerous influences that make you prone to developing cancer. There are unavoidable factors that you have no protection against. Some of these are a family history of genetically inherited traits, and age and gender issues. There are wholly avoidable factors such...

• Doctor Turns Personal Tragedy Into Fight Against Cystic Fibrosis

  Since cystic fibrosis runs in the family, continuously researching news about the disease can help both patients and their families stay up to date on current events, such as new CF medications and treatments. Yet, for one woman, Dr. Wanda O’Neal, merely researching the latest information on CF...

• What Could Happen if My Pneumonia Remains Untreated?

  There are several types of pneumonia that vary in their degree of seriousness. Pneumonia caused by a viral infection can make people feel very sick with fever, cough, and tiredness. However, viral pneumonia tends to go away on its own after some time. A "walking pneumonia" is a mild case of...

• What Is Cyanosis and Why Does It Occur?

  IntroductionCyanosis is the medical term for a bluish discoloration of the skin, nails, toes, and mucous membranes. It is generally caused by low levels of oxygen in the blood. Normally, blood appears bright red when it is fully oxygenated. However, when blood does not have enough oxygen, it turns...

• What Is a Barrel Chest?

  Barrel Chest A barrel chest refers to an individual's chest that appears to be always partially inflated. It looks as if they are taking a deep breath with their rib cage broadened. An individual with a barrel chest may find it hard to breathe.A barrel chest may develop due to osteoarthritis or...

• How Depression Leads to COPD Medication Non-Adherence

  Chronic Obstructive Pulmonary Disease (COPD) is a progressive disease that still does not have a cure. The World Health Organization predicts that COPD will become the fourth leading cause of death worldwide by 2030. The predominant cause for COPD is tobacco smoking. Most symptoms are irreversible,...