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Hypersensitivity pneumonitis is caused by repeated exposure to environmental substances that cause inflammation in the lungs when inhaled. Substances include: bacteria, fungi or molds, proteins, or chemicals.

Signs and symptoms vary between acute, subacute, and chronic hypersensitivity pneumonitis and may include flu-like illness including fever, chills, muscle or joint pain, or headaches; rales; cough; chronic bronchitis; shortness of breath; anorexia or weight loss; fatigue; fibrosis of the lungs; or clubbing of fingers or toes. Complications of chronic disease may include irreversible lung damage, permanently reduced lung function, pulmonary hypotension, or heart failure.

Atherosclerosis is the main cause of PAD. Plaque buildup in the arteries is called atherosclerosis. Atherosclerosis is a disease in which a waxy substance called plaque builds up on the inner lining of arteries. Plaque is made up of fat, cholesterol, fibrous tissue, and calcium. In PAD, plaque may reduce or fully block the flow of oxygen-rich blood through arteries to the body’s vital organs and the limbs.

Sleep apnea can be caused by a person’s physical structure or medical conditions. These include obesity, large tonsils, endocrine disorders, neuromuscular disorders, heart or kidney failure, certain genetic syndromes, and premature birth.

There are many risk factors for sleep apnea. Some risk factors, such as unhealthy lifestyle habits and environments, can be changed. Other risk factors, such as age, family history and genetics, race and ethnicity, and sex, cannot be changed.

La hemoglobina anormal, llamada hemoglobina S, causa la anemia de células falciformes.

Your doctor may diagnose overweight and obesity based on your medical history, a physical exam that checks your body mass index (BMI) and waist circumference, and tests to rule out other medical conditions.

The signs and symptoms of pneumonia can be mild or serious. Young children, older adults, and people who have serious health conditions are at risk for developing more serious pneumonia or life-threatening complications.

Su médico puede diagnosticar la EPOC con base en sus signos y síntomas, los antecedentes médicos y familiares y los resultados de exámenes diagnósticos como pruebas de función pulmonar incluyendo espirometría, análisis de gases arteriales, radiografía de tórax, o tomografía computarizada de tórax.

There are many types of congenital heart defects. They range from simple to complex and critical.