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Browse our complete A-Z directory of healthcare terms and entities.
Showing 200 entries starting with "O" of type "General"
Over-the-counter (OTC) drugs are medicines sold directly to a consumer without a prescription from a healthcare professional, as compared to prescription drugs, which may be sold only to consumers possessing a valid prescription. In many countries, OTC drugs are selected by a regulatory agency to ensure that they are ingredients that are safe and effective...
When your child is miserable with a cold or headache, it's normal to want to give them something to help ease the symptoms. But how do you know what is safe for kids? Using medicines safely means knowing when they're needed--and when they're not. How can OTC drugs be harmful? Studies show over-the-counter cough and...
Top of the page Obesity Topic OverviewWhat is obesity? Obesity means you have an amount of body fat that may harm your health. Having too much body fat can lead to type 2 diabetes, heart disease, high blood pressure, arthritis, sleep apnea, and stroke. Because of these risks, it is important to lose weight even...
What is obsessive-compulsive disorder (OCD)? Obsessive-compulsive disorder (OCD) is a type of mental illness that causes repeated unwanted thoughts. To get rid of the thoughts, a person with OCD may also do the same tasks over and over. For example, you may fear that everything you touch has germs on it. So to ease that...
Occupational safety and health (OSH) is a cross-disciplinary area concerned with protecting the safety, health and welfare of people engaged in work or employment. The goals of occupational safety and health programs include to foster a safe and healthy work environment. OSH may also protect co-workers, family members, employers, customers, and many others who might...
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The Office of the National Coordinator for Health Information Technology (ONC) is a staff division of the Office of the Secretary, within the U.S. Department of Health and Human Services. It is primarily focused on coordination of nationwide efforts to implement and use health information technology and the electronic exchange of health information.
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Updated January 24, 2025 Facing a health insurance denial in Ohio can feel like navigating a storm over Lake Erie—chaotic and disorienting. But you’re not alone. This guide is your lighthouse, cutting through the fog with actionable steps, legal tools, and resources to secure the care you deserve. Let’s chart a course to justice! Ohio’s...
Updated January 24, 2025 Facing a health insurance denial in Oklahoma can feel like navigating a tornado-prone prairie—unpredictable and overwhelming. But you’re not alone. This guide is your storm shelter, equipping you with actionable steps, legal tools, and resources to challenge unfair denials and secure the care you deserve. Let’s weather this together! Oklahoma’s Healthcare...
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Top of the page Opioids Information about this medicineWhat are the most important things you need to know about your medicines? Make sure you know about each of the medicines you take. This includes why you take it, how to take it, what you can expect while you're taking it, and any warnings about the...
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Medicalrecords.com Enterprise Services We pride ourselves on focusing on every customer to assure that their need is met. With Medicalrecords.com Enterprise*, we with our healthcare industry partners provide trusted and reliable services to get the health information data you need in a timely and secure manner. We primarily serve the following markets: Health Insurance Life...
Here's an expanded and improved version of your guide: Oregon: Don’t Be Denied – Your Guide to Fighting Health Insurance Denials in the Beaver StateUpdated January 24, 2025Facing a health insurance denial in Oregon can feel like navigating a dense forest—daunting and disorienting. But you’re not alone. This guide is your trail map, cutting through...
Organ donation is a critical medical procedure that saves thousands of lives annually. It involves the surgical removal of organs and tissues from a donor and transplanting them to recipients in dire need of a life-saving operation. Understanding organ donation is pivotal in alleviating the gap between the high demand for organ transplants and the...
IntroductionOver 20% of emergency visits in 2023 led to surprise out-of-network bills (KFF, 2024), leaving patients stuck with thousands in unexpected costs. Whether you’re seeking a specialist or facing an emergency, understanding your out-of-network benefits is critical. This guide walks you through how to decode your policy, negotiate bills, and use federal protections like the...
GLP-1 drug side effects - gastroparesis, gallbladder issues, bowel obstruction
El oído interno está constituido por la cóclea y los canales semicirculares. La cóclea es el órgano sensorial principal de la audición. Las vibraciones de un sonido del oído medio hacen que el líquido del oído interno se mueva. Luego, el líquido dobla las pequeñas células pilosas (de pelo) en la cóclea. Cuando las...
La mayoría de las infecciones del oído se forman en el oído medio. La trompa de Eustaquio transporta el líquido desde el oído medio hasta la garganta. Algunas veces, durante un resfriado, se hincha la trompa de Eustaquio y se queda atrapado el líquido en el oído medio. Las bacterias o los virus pueden crecer...
Guides you through decision about weight-loss surgery. Covers health problems like high blood pressure and type 2 diabetes that can be caused by obesity. Lists reasons for and against surgery. Includes an interactive tool to help you make your decision.
Covers causes of obesity. Discusses health risks such as hypertension related to having excess body fat. Focuses on lifestyle changes you can make, like weight loss through healthy eating and exercise. Includes creating a long-term plan with your doctor.
Dr. Obinna D. Eneanya is a female internal medicine in New York, NY. Dr. Obinna graduated in 2009. She is licensed to practice by the state board in New York.
Sometimes after you swallow a pill it may feel like it "got stuck" or didn't go all the way down. This feeling usually goes away within 30 to 60 minutes if you drink liquids or eat a piece of bread. You may not have any symptoms when something is stuck in your esophagus . But...
Young children are more likely than older children or adults to put small objects—such as beads, dried beans, popcorn, plastic toy pieces, foam rubber, or small batteries—up their noses. If the child doesn't tell you about it, your first clue may be a bad-smelling green or yellow discharge or blood (epistaxis) from one...
Existe un par de maneras de extraer un objeto de la nariz : En el lado que no contiene ese objeto, presione la fosa nasal hasta cerrarla. Luego, exhale fuerte por la fosa nasal del otro lado. Si su hijo puede mantener la calma y usted puede ver el objeto y sujetarlo, trate de extraer...
A few examples of obsessive or compulsive behaviors that can interfere with your daily activities include: Frequently washing your hands, showering, or brushing your teeth. Constantly cleaning, straightening, and ordering certain objects. Checking lights, appliances, or doors again and again to be sure they are turned...
Guides through decision to take medicine to treat obsessive-compulsive disorder (OCD). Explains symptoms of OCD. Describes most common types of medicines used and other treatments. Covers benefits and risks. Includes an interactive tool to help you decide.
Briefly discusses obstetric panel, a group of blood tests used to check the health of women during early pregnancy. Includes links to info on tests such as antibody screening, blood type, complete blood count, HIV, rubella, and hepatitis B.
Obstetricians (also called OBs) are medical doctors who specialize in the care of pregnant women, from the time of conception through delivery and the period following delivery (postpartum). Most obstetricians are also gynecologists who diagnose and treat diseases of the female reproductive system and provide care for...
Occlusion is how the upper and lower teeth fit together (how they align). This is also known as "bite." Perfect bites are rare. Most people have some form of malocclusion ("poor bite"). With an overbite, the upper teeth stick far out over the lower teeth. With an underbite, the upper teeth are positioned behind the...
Occupational medicine specialists are medical doctors who specialize in helping organizations maintain a safe and healthy workplace and provide care for injured workers and assist them in getting back to work. An occupational medicine specialist is a preventive medicine specialist who is further specialized in...
October marks ovarian cancer awareness month. According to the American Cancer Society, ovarian cancer ranks fifth in cancer deaths among women. In the United States, each year 22,000 women are diagnosed with the disease and 15,000 die from it.
What is ergonomics? Ergonomics (say "er-guh-NOM-iks") is the study of the kind of work you do, the environment you work in, and the tools you use to do your job. The goal of office ergonomics is to set up your office work space so that it fits you and the job you are doing. When...
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LITTLE ROCK, Ark.- Law enforcement in central Arkansas are now armed with a new tool to fight mental illness. More than thirty officers and deputies graduated on Friday from the first of five statewide crisis intervention training programs. The 40-hour course teaches law enforcement to better address the needs and risks of suspects with mental...
La oftalmopatía de Graves, también llamada enfermedad ocular tiroidea, es una complicación frecuente del hipertiroidismo. Las personas con oftalmopatía de Graves pueden llegar a tener problemas en los ojos, incluyendo ojos saltones y enrojecidos, sensibilidad a la luz, y pueden ver doble o borroso. El grado de...
Dr. Ogonna K. Nwawka is a male diagnostic radiology in Fresh Meadows, NY. Dr. Ogonna graduated from University Of Texas Medical Branch At Galveston in 2008. He is licensed to practice by the state board in New York.
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WEDNESDAY, Oct. 4, 2017 (HealthDay News) -- Nearly one-quarter of older Americans who took their own lives told someone about their intentions before doing so, a new study reveals. The older they were, the more likely they were to disclose, the investigators found. Any indication of suicidal thoughts is an opportunity for prevention, said study...
Oligoarticular juvenile idiopathic arthritis (JIA), also known as oligoarthritis, is the most common and often the mildest type of JIA. Oligoarticular JIA most commonly affects the knees, ankles, fingers, toes, wrists, elbows, and hips. Oligoarticular JIA affects 4 or fewer joints during the first 6 months of the...
When Olivia Newton-John first learned she had breast cancer 25 years ago, she received chemotherapy for her body, but had trouble finding treatment to help settle her mind. That’s why she went on to create the Olivia Newton-John Cancer Wellness & Research Centre in her native Melbourne, Australia. But I also did a lot of...
Omalizumab (Xolair) is a medicine approved by the U.S. Food and Drug Administration (FDA) for use in people age 12 and older who have moderate or severe persistent asthma. This medicine costs a lot more than any of the standard treatments for asthma. The medicine works by blocking immunoglobulin E (IgE) from attaching...
Omega-3 fatty acids are found in marine or plant sources, such as fish oil and flaxseed oil. A few studies suggest that adding omega-3 fatty acids to medicine (such as lithium) can help reduce the depressive symptoms of bipolar disorder in some people. Omega-3 fatty acids don't seem to have an effect on the manic...
They had to choose men’s names –Currier, Ellis, and Acton Bell—to submit their works to publishers. Why, up until recently, were most “classic” authors men? So some created classics of literature with little or no credit. Women authors having hidden identities is part of ancient history. Sometimes such women wrote masterpieces and the men in...
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THURSDAY, Oct. 5, 2017 (HealthDay News) -- A type of early onset dementia known as frontotemporal degeneration appears to take an even more punishing toll on family finances than Alzheimer's disease, a new report suggests. Frontotemporal degeneration (FTD) is the most common type of dementia to strike men and women under 60, the study team...
CROOKSVILLE - Kimberly Alexander began what she calls her journey on May 23, when she was diagnosed with breast cancer. Kimberly began to write in a journal chronicling her feelings, actions and decisions that related to her breast cancer on a pink-lined tablet. “The worst part was watching my husband struggle with it. Since her...
Federal law passed in 2009 requires physicians to offer the option of online communications to patients in order for physicians to avoid Medicare reimbursement penalties. Online access to doctors could potentially help patients reduce the number of times they have to visit the doctor's office. However, some research has shown that patients with online communication...
Open-angle glaucoma is the most common type of glaucoma, in which slow damage to the optic nerve in the back of the eye causes gradual loss of vision. The cause is not well understood but in some cases may be increased pressure in the eye (intraocular pressure) that results from the buildup of fluid inside...
Courtesy of Diane Newton, MD, and Drew Taylor, Director of Advanced Open Imaging, Meridian, Idaho. Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures that are inside the body. During the MRI test (also called an MRI scan), you...
Discusses traditional surgery to remove an enlarged prostate. Covers what to expect after surgery and risks. Links to info on TURP.
Despite the country’s best efforts to curb opioid prescriptions in America, a new analysis suggests Americans still dramatically overuse the medications. Researchers analyzed counties across the country based on the average amount of opioid prescriptions per person in order to reach their results. Rural areas of the country, in particular, saw higher amounts of MMEs...
What are the most important things you need to know about your medicines? Make sure you know about each of the medicines you take. This includes why you take it, how to take it, what you can expect while you're taking it, and any warnings about the medicine. The information provided here is general. So...
More than 25 million people – most of them poor and living in developing countries – die each year in severe pain because they have little or no access to morphine and other painkillers, according to a new report. A special commission created by The Lancet medical journal looked at pain care around the world...
Opportunistic infections occur in people whose immune systems have been weakened by a disease, such as AIDS. An opportunistic infection may cause serious, even life-threatening, illness. Opportunistic infections that are common in people who have AIDS include Pneumocystis pneumonia, tuberculosis, and toxoplasmosis...
Opportunistic infections and diseases occur in people whose immune systems have been weakened. They usually do not occur in people who have healthy immune systems. When the immune system is weakened by a disease such as HIV infection, opportunistic diseases may cause serious, even life-threatening, illnesses...
Optic neuritis is inflammation of the optic nerve, which lies at the back of the eye and carries visual information from the eye to the brain. Optic neuritis may cause partial or total loss of vision, usually in one eye, and is often associated with pain when the eye moves. When optic neuritis causes partial...
What is optic neuritis? Optic neuritis is inflammation of the optic nerve , which lies at the back of the eye. This nerve carries visual information from the eye to the brain. If it's inflamed, you may have blurred or double vision or even loss of vision. What causes optic neuritis? Your doctor may not...
An optical coherence tomography (OCT) scan uses light beams to make detailed images of the inside of the eye. This test can find eye problems such as age-related macular degeneration or glaucoma. During the test, light beams are focused onto the back of the eye. The test can help find retina or optic nerve problems...
Opticians are skilled technicians who fill optical prescriptions and fit people with glasses or contact lenses. Opticians, unlike ophthalmologists and optometrists, are not licensed to test vision, write medicine prescriptions, or diagnose or treat eye diseases. Opticians can: Fill prescriptions for eyeglasses and...
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Several oral devices have been tested to treat people with snoring, including a tongue-retaining device that is worn while sleeping. It pushes the tongue and jaw forward, improving airflow. Changing the position of the lower jaw enlarges the airway and decreases the chance that it will collapse when you inhale. This may...
Oral cancer is the growth of abnormal cells in any part of the mouth or lips. Most oral cancers start in the lining of the lips or mouth in the thin, flat cells called squamous cells. Symptoms for oral cancer include sores or lumps that appear on the lips or in the mouth. Sometimes white...
Cancer prevention is action taken to lower the chance of getting cancer. By preventing cancer, the number of new cases of cancer in a group or population is lowered. Hopefully, this will lower the number of deaths caused by cancer. To prevent new cancers from starting, scientists look at risk factors and protective...
Aggressive treatment of malignant disease may produce unavoidable toxicities to normal cells. The mucosal lining of the gastrointestinal tract, including the oral mucosa, is a prime target for treatment-related toxicity by virtue of its rapid rate of cell turnover. The oral cavity is highly susceptible to direct and...
An oral glucose tolerance test measures the body's ability to use glucose, a type of sugar found in fruits and many other foods. (Glucose is the main source of energy used by the body.) After the person has not had anything to eat or drink during the night, a blood sample is taken on the...
Orchiectomy is the removal of the testicles. The penis and the scrotum, the pouch of skin that holds the testicles, are left intact. An orchiectomy is done to stop most of the body's production of testosterone, which prostate cancer usually needs in order to continue growing. Simple orchiectomy is the removal of both...
Orchitis is an inflammation or infection of the testicle, often caused by a virus or bacteria. Symptoms of orchitis include pain, swelling, or a feeling of heaviness in the scrotum. Orchitis can occur in men who get mumps, influenza, or tuberculosis. Sexually transmitted infections may also cause orchitis. Pain and...
Answers questions about organ transplants. Covers becoming an organ donor and getting on a waiting list. Covers tests used to see if you'd be a good candidate. Looks at medicines that you might take after a transplant. Offers tips for staying healthy.
Organic meat, poultry, eggs, and dairy products come from animals that are not given antibiotics or growth hormones. Organic food is produced without using most conventional pesticides, bio-engineering, or ionizing radiation, and its production emphasizes using renewable resources and conserving soil and water. The...
Orgasm is a series of intense, pleasurable muscle contractions in the pelvic area. This is the result of genital stimulation. Before orgasm, the body's muscles have tightened, and blood vessels in the genital area have swelled with blood. When this has reached a peak (climax), the muscles suddenly relax, and orgasm...
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