An Overview of Functional Residual Capacity (FRC)

Tests that measure FRC include alung plethysmographor a helium dilution method. Even though you exhale, air is still left in the lungs. The volume of remaining air after a normal breath is called the FRC. BSIP / UIG / Getty Images As you breathe, youralveoli(tiny air sacs) always stay open. This is due to a number of factors. Surfactant, a sticky substance that lines the inside of your alveoli, helps keep them open....

April 18, 2025 · 1 min · 212 words · Julia Andrews

An Overview of Genital Psoriasis

Genital psoriasis isn’t asexually transmitted infection. it’s possible for you to’t get it from someone else or pass it along to others. Rather, it’s because of an immune response that attacks healthy skin cells. Get our printable guide for your next doctor’s appointment to help you ask the right questions. This article discusses genital psoriasis, its symptoms, causes, and treatment. It also offers suggestions on how to cope when you have this form of psoriasis....

April 18, 2025 · 3 min · 588 words · Cynthia Graham

An Overview of Glycerin for the Skin

The versatile compound was discovered as far back as 1779 by a Swedish chemist. Glycerol is considered by some experts to be the most effective humectant available. But there are many other uses for glycerin. Anna Efetova / Getty Images Contact dermatitis results from direct skin exposure to a specific chemical substance. If the rash doesnt go away, be sure to consult with your healthcare provider. Other Side Effects Other side effects of glycerin may include dehydration of the skin....

April 18, 2025 · 1 min · 188 words · David Harrison

An Overview of Graves’ Ophthalmopathy

In Graves ophthalmopathy, inflammation and swelling can affect muscles and other tissues around the eyes. This can cause your eyeballs to bulge, which is one of the most recognizable symptoms. This symptom is also calledexophthalmos, orproptosis. Illustration by Cindy Chung, Verywell Inflammation causes swelling and scarring. The cornea may be damaged by the bulging forward of the eyes. Recap Bulging eyes are the main symptom of thyroid eye disease. You may also feel irritation and see double vision....

April 18, 2025 · 2 min · 321 words · Laura Smith

An Overview of Guinea Worm Disease

People become infected with the parasitic worm after drinking contaminated water or eating undercooked fish or other aquatic animals. The pain resulting from the condition can be debilitating, and many are left with lifelong disabilities. It will go over global prevention and eradication measures and coping with the condition. A. Poyo/CDC/The Carter Center What Are the Symptoms of Guinea Worm Disease? People infected with Guinea worm dont typically have any symptoms until about a year after they’re first infected....

April 18, 2025 · 3 min · 561 words · William Patrick

An Overview of Haemophilus Influenzae Type B (Hib)

Hib is particularly dangerous for young children. Haemophilus influenzaetype b can be prevented with vaccination. The incubation period for Hib is not known, but it generally produces symptoms within a week. FatCamera / Getty Images In some cases, the bacteria spread to the bloodstream and to other parts of the body. This is called invasive Hib disease. Complications Invasive Hib disease can affect multiple organ systems and lead to serious complications....

April 18, 2025 · 2 min · 247 words · Jorge Smith

An Overview of Hemianopsia

You may also hear it called hemianopia. The only difference between hemianopia and hemianopsia is in the spelling. This article covers the symptoms and causes of hemianopsia. Rg Studio / Getty Images Symptoms of Hemianopsia Some people with homonymous hemianopsia may not even know they have it. With hemianopsia, the structures of the eyes themselves are not damaged and are functioning properly. Instead, the brain is not properly perceiving what the eyes are seeing....

April 18, 2025 · 2 min · 251 words · Luis Berger

An Overview of Hepatitis B

Having hepatitis B does not necessarily mean that a person isinfectious to other peopleonly some people with HBVare contagious. Signs and Symptoms There are many ways people may discover they have hepatitis. Fulminant hepatitis is a severe but very rare form ofacute hepatitis. Tetra Images / Brand X Pictures / Getty Images About two weeks after jaundice develops, encephalopathy develops. Up to 85% of people with this key in of rare hepatitis will die without aliver transplant....

April 18, 2025 · 3 min · 451 words · Diana Jackson

An Overview of Histopathology

A histopathology report describes the findings of a specialist known as apathologist. What Is Histopathology? In clinical practice, histopathology refers to the examination of tissues obtained bybiopsyor the surgical removal of an organ. Hero Images / Getty Images Histopathology is not the same thing ascytopathologywhich looks at individual cells. With histopathology, the pathologist not only evaluates cell structure but also how cells are grouped. Why Is Histopathology Important? Without histopathology, it would be difficult, if not impossible, to diagnose many diseases....

April 18, 2025 · 3 min · 502 words · Teresa Stokes

An Overview of Hypernatremia

Even more people may have hypernatremia at some point during hospitalization. Infants and older people are particularly at risk of a dangerously high sodium level. This article covers the symptoms and causes of hypernatremia, including at-risk populations. Simon Jarratt/ Corbis/ VCG/ Corbis/ Getty Images Plus/ Getty Images It also explains how healthcare providers diagnose and treat high sodium levels. Symptoms are also more likely if a person has developed hypernatremia suddenly instead of developing it gradually....

April 18, 2025 · 4 min · 793 words · Kathy Snyder

An Overview of Iliopsoas Syndrome

What Causes Iliopsoas Pain? The iliopsoas muscles are the anterior hip muscles (muscles on the front of the hip. They are complex muscles made up of the psoas major, the psoas minor, and theiliacus. Anut21ng / Getty Images Within the hip joint are severalbursae, small, fluid-filled sacs that lie between bones and soft tissues. Two of these bursaethe greatertrochantericbursa and the iliopsoas bursacan become inflamed, setting the stage for iliopsoas syndrome....

April 18, 2025 · 2 min · 217 words · Laura Scott

An Overview of Infection

Keep reading to learn about infections, including types, signs and symptoms, causes, and more. Sometimes, a microorganism will overwhelm the immune systems ability to fight a pathogen off. There are also pathogens that might even be resistant to antibiotic therapy. Viruses, bacteria, parasites, fungus, and prions are different types of pathogens that cause infections. Viral Infections Viral infections are triggered by viruses. When the cell dies, it will release new viruses that infect other cells....

April 18, 2025 · 5 min · 911 words · Joseph Maxwell

An Overview of Iron Deficiency Anemia

A common cause of anemia Iron deficiency anemia is among the most prevalent types of anemia. Symptoms include fatigue, pale skin, andtachycardia (rapid heart rate). The distinctive change in RBC structure is described asmicrocytic anemia. Julie Bang / Verywell Treatments for iron deficiency anemia include dietary modification,iron supplements, Injectafer treatments, orblood transfusion. Symptoms Typically, iron deficiency anemia causes nonspecific and vague symptoms, making it hard to recognize. Depending on the cause, it can develop gradually, with effects worsening over time....

April 18, 2025 · 3 min · 519 words · Krista Cooper