Articles

  • Disease

    Obesity

    Obesity increases a person's risk of illness and death due to diabetes, stroke, heart disease, hypertension, high cholesterol, and kidney and gallbladder disease. Obesity may increase the risk for some types of cancer. It is also a risk factor for the development of osteoarthritis and sleep apnea.

    Obesity means having too much body fat. It is not the same as being overweight, which means weighing too much. A person may be overweight from extra muscle...

  • Disease

    Obesity hypoventilation syndrome (OHS)

    Air is breathed in through the nasal passageways, travels through the trachea and bronchi to the lungs.

    Obesity hypoventilation syndrome (OHS) is a condition in some obese people in which poor breathing leads to lower oxygen and higher carbon dioxide levels in...

  • Disease

    Obesity in children

    Obesity means having too much body fat. It is not the same as overweight, which means a child’s weight is in the upper range of children of the same age and...

  • Disease

    Obsessive-compulsive disorder

    Obsessive-compulsive disorder is an anxiety disorder characterized by an inability to resist or stop continuous, abnormal thoughts or fears combined with ritualistic, repetitive and involuntary defense behavior.

    Obsessive-compulsive disorder (OCD) is a mental disorder in which people have unwanted and repeated thoughts, feelings, ideas, sensations (obsessions), and...

  • Disease

    Obsessive-compulsive personality disorder

    Obsessive-compulsive disorder is an anxiety disorder characterized by an inability to resist or stop continuous, abnormal thoughts or fears combined with ritualistic, repetitive and involuntary defense behavior.

    Obsessive-compulsive personality disorder (OCPD) is a mental condition in which a person is preoccupied with: Rules Orderliness Control

  • Disease

    Obstructive sleep apnea - adults

    Massively enlarged tonsils can cause episodes of cessation of breathing known as obstructive sleep apnea.  Cessation of breathing can last 10 seconds or longer, causing extremely low levels of oxygen in the blood.

    Obstructive sleep apnea (OSA) is a problem in which your breathing pauses during sleep. This occurs because of narrowed or blocked airways.

  • Disease

    Obstructive uropathy

    A catheter (a hollow tube, often with an inflatable balloon tip) may be inserted into the urinary bladder when there is a urinary obstruction, following surgical procedures to the urethra, in unconscious patients (due to surgical anesthesia, coma, or other reasons), or for any other problem in which the bladder needs to be kept empty (decompressed) and urinary flow assured. The balloon holds the catheter in place for a duration of time.

    Obstructive uropathy is a condition in which the flow of urine is blocked. This causes the urine to back up back up and injure one or both kidneys.

  • Disease

    Occupational asthma

    Spirometry is a painless study of air volume and flow rate within the lungs. Spirometry is frequently used to evaluate lung function in people with obstructive or restrictive lung diseases such as asthma or cystic fibrosis.

    Occupational asthma is a lung disorder in which substances found in the workplace cause the airways of the lungs to swell and narrow. This leads to attacks...

  • Disease

    Occupational hearing loss

    The ear consists of external, middle, and inner structures. The eardrum and the 3 tiny bones conduct sound from the eardrum to the cochlea.

    Occupational hearing loss is damage to the inner ear from noise or vibrations due to certain types of jobs.

  • Self-Care Instructions

    Oculoplastic procedures