English textbooks

What is chorionic villus sampling? Chorionic villus sampling (CVS) is a prenatal test. It’s used to test for chromosomal abnormalities and other genetic problems. During the test, a tissue sample is taken from the placenta and sent to a lab…

What is choroid plexus papilloma? Choroid plexus papilloma (CPP) is a rare type of brain tumor. It’s generally slow growing and not cancer (benign). Benign also means that the growth doesn’t spread to other parts of the body. CPP is…

Does this test have other names? Genetic testing, karyotyping What is this test? This test looks for changes, or abnormalities, in the chromosomes that make up your body’s DNA, or genetic road map. Your chromosomes are found in the inner…

What is chronic fatigue syndrome? Chronic fatigue syndrome (CFS) is a condition marked by profound tiredness, regardless of bed rest. It’s also called myalgic encephalomyelitis (ME). Symptoms may get worse with physical or mental activity. CFS can happen suddenly and…

What is chronic hypertension? Blood pressure is the force of the blood pushing against the artery walls. Each time the heart beats, it’s pumping blood into these arteries. The highest blood pressure happens when the heart contracts and is pumping…

The teenage years are a stressful time. This is true even for physically healthy teens. Chronic illness happening during these years makes a teen’s development even harder. The chronic disorder, treatment needs, hospital stays, and surgery (when needed) all make…

What is chronic inflammatory demyelinating polyradiculoneuropathy? Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a rare type of autoimmune disorder. In an autoimmune disease, the body attacks its own tissues. In CIDP, the body attacks the myelin sheaths. These are the fatty…

What is cirrhosis? Cirrhosis is when scar tissue replaces healthy liver tissue. This stops the liver from working normally. Cirrhosis is a long-term (chronic) liver disease. The damage to your liver builds up over time. The liver is your body’s…

How is chronic lymphocytic leukemia (CLL) diagnosed? If your healthcare provider thinks you might have CLL, you will need certain exams and tests to make sure. Your healthcare provider will ask you about your health history, your symptoms, risk factors,…

What is chronic pancreatitis? Your pancreas is an organ with many important functions. It makes enzymes that help you digest food. It also makes insulin to keep your blood sugar levels under control. Short-term (acute) pancreatitis is a sudden inflammation…

Many chronic respiratory disorders require clinical care by a doctor or other health care professional. Listed in the directory below are some of the conditions, for which we have provided a brief overview. © 2000-2024 The StayWell Company,…

What is circumcision for children? Circumcision is a surgery to remove the skin covering the end of the penis. This skin is called the foreskin. This surgery is most often done 1 or 2 days after a baby’s birth. Circumcision…