Katrina Parker

An arterial blood gas (ABG) test helps assess someone with chronic obstructive pulmonary disease (COPD). Not everyone with COPD needs the test, but doctors may use it in certain situations.

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ABGs in COPD: Purpose, what the test involves, and more Learn about the purpose of the arterial blood gas test (ABGs) for people with COPD. This article also discusses what to expect, test results, and more.

Syphilis is a s*xually transmitted infection (STI) caused by the bacteria, Treponema pallidum. You can get the infection from skin-to-skin contact during vaginal, a**l, and oral s*x with a person with syphilis.

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What Are the Symptoms of Syphilis? The first symptom of syphilis is a sore on the ge****ls, a**s, and in the mouth. Other symptoms include non-itchy rash, patchy hair loss, and fatigue.

Human papillomavirus (HPV) may not always cause ge***al warts. However, HPV can still spread through s*xual contact even without the presence of warts.

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HPV without warts: Is it possible? It is possible to have HPV without developing warts. Learn more here.

A diagnosis of narcolepsy might explain someone's excessive daytime sleepiness or sudden episodes of muscle weakness, known as cataplexy. There's no cure for narcolepsy, but some symptoms can be managed with different treatment options.

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There's No Cure for Narcolepsy, But This Can Help Narcolepsy treatment is personalized depending on different factors. Here are the typical lifestyle interventions and medicines for narcolepsy.

A person with Parkinson’s disease (PD) may require physical, emotional, and mental support. Their needs may change from day to day.

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Caring for someone with Parkinson's: What to know Learn ways to care for a person with Parkinson’s disease, how to manage duties and make decisions, some tips for coping, and more here.

By now, you’re probably well aware of the importance of slathering on sunscreen if you’re spending a day poolside or at the beach. But when it comes to brief exposure to sunshine, the rules might seem a bit fuzzier.

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Should You Ever Go Outside Without Sunscreen? Here's What Dermatologists Say There's been mounting conversation online about whether it's really necessary to apply sunscreen before going outdoors. Here's what experts have to say about whether it's ever okay—or even beneficial—to skip sunscreen.

Doctors can prescribe nasal sprays to provide quick relief for migraine symptoms. Side effects may include a bad taste, nausea, and heart problems.

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Migraine nasal spray: Does it work and how to use it Migraine nasal spray may relieve symptoms faster than oral options for some people. Learn how to use them, how fast they work, and other options available.

Rheumatoid arthritis (RA) is an autoimmune disease that causes joint pain, swelling, and inflammation when the immune system attacks healthy tissue.

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What Is Rheumatoid Arthritis? Rheumatoid arthritis is an autoimmune disorder affecting the joints, causing pain and swelling. Find out more about symptoms, causes, and treatment.

People with atrial fibrillation need to avoid taking any supplements without consulting a doctor. Omega-3, St. John’s wort, and vitamin E may be particularly problematic.

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AFib supplements: Safety and more It is important to avoid taking any supplements with AFib without consulting a doctor. Omega-3, St. John’s wort, and vitamin E may be need particular caution. Learn more.

Celine Dion revealed Thursday that she has been diagnosed with stiff-person syndrome, a rare and progressive neurological disorder.

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What Is Stiff-Person Syndrome? Celine Dion's Rare Disorder, Explained Celine Dion, 54, revealed Thursday that she has been diagnosed with stiff-person syndrome, a rare and progressive neurological disorder.

Following a plant-based diet—or one primarily filled with fruits, vegetables, legumes, and whole grains–has been associated with a reduced risk of everything from type 2 diabetes to premature death. Now, a new study suggests that the eating plan may slow the progression of prostate cancer.

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Study: This Diet Has Been Linked to Reducing Risk of Prostate Cancer Progression New research shows that men who eat more plant-based foods after a prostate cancer diagnosis may have a lower risk of cancer progression. Here, researchers explain the study and what may be behind the link.

Proair (albuterol sulfate) is a brand-name drug that’s prescribed to treat or prevent bronchospasm in adults and some children. Proair comes as an inhaler that’s taken only when needed. The dosage can vary depending on what condition the drug is used to help prevent or treat.

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Proair and dosage: Strengths, forms, when to use, and more Find out about the dosages for Proair in treating bronchospasm. You can also get the facts on the forms, strengths, and dosing schedules.