n. 1  A nucleic acid that carries the genetic information in cells and some viruses, consisting of two long chains of nucleotides twisted into a double helix and joined by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine.
Less than 1 percent of patients with normal results on liver function tests before taking extended-release niacin tablets have elevated liver enzyme values (more than three times the reference range) after niacin is started.
What if my liver enzymes stay elevated? If your liver enzymes are still elevated after six months, your doctor may do more blood tests or an ultrasound. He or she also might want you to see another doctor who specializes in the digestive system. This doctor will check for other causes and may also do a liver biopsy. Read the full article.