Multaq FDA : The liver produces many proteins, including albumin, prothrombin, and ceruloplasmin (containing copper). Sometimes inflammation in the liver stimulates the production of gamma globulin in other organs as well as in the liver. Abnormal levels of these proteins are abnormal and may signal disease in the liver.
A severely damaged liver cannot make albumin efficiently, so an abnormally low level of this protein can point to liver damage such as cirrhosis and chronic liver diseases. However, a malnourished person or someone otherwise in ill health might also lose the ability to produce albumin without experiencing a specific liver disease, so further tests are indicated to sort this out.
Prothrombin is a protein that the liver produces as one of the clotting factors that stop bleeding. Prothrombin time (PT) is the time the body needs to begin clotting-—-normally between 9 and 11—and vitamin K must be present for clotting to happen. When vitamin K is deficient (which is often the case with certain cholestatic liver diseases) or the liver has suffered extensive damage, the PT will be abnormally long, compromising the patients ability to stop bleeding. Injections of vitamin K or oral supplementation sometimes help; when an injection returns the PT to normal, doctors know that the liver is working. If clotting does not improve after the vitamin K injection, the coagulopathy (inability to stop bleeding) might indicate liver disease.
The immunoglobulins are another group of liver-related proteins connected with the immune system. They are produced partly by the liver itself, but mostly by the immune system outside the liver. Many patients with chronic liver diseases display high levels of immunoglobulins. Specific immunoglobulins, such as IgA, IgG, and IgM, are possible indicators of liver disease, particularly primary biliary cirrhosis and autoimmune hepatitis.
During the clotting process, platelets are the blood cells that form clots; they are stored in the spleen. In cirrhotic patients, the spleen becomes enlarged because of portal hypertension (the blood backs up behind the scarred liver) and causes a condition known as splenomegaly, which traps the platelets. Low platelet levels are known as thrombocytopenia. When the spleen is enlarged and platelets are low, cirrhosis is a likely diagnosis.
After a first round of liver function tests, doctors may order more blood tests (see the table on page 161) to confirm a specific diagnosis. Depending on the hospital, the laboratory, and the test itself, it take as little as wo days or as long as two weeks before the results of a given test are known.
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Blood thinners include medications such as Coumadin. Also to be avoided are nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Advil, Motrin, Pamprin), aspirin, naproxen (Aleve), antiplatelet prescriptions (Plavix), and cyclooxygenase-2 (COX-2) inhibitors such as Celebrex. Small doses of acetaminophen (Tylenol) might be permissible, but it’s important to consult with your doctor first.
Vitamin E and the many different vitamin formulations containing vitamin E should be discontinued a week before the biopsy because they could boost the effectiveness of aspirin and some blood-thinning drugs. Herbs such as garlic, ginseng, and ginkgo biloba could have the same effect and should be avoided as well.
One week to a month before the biopsy, your doctor will order blood work to evaluate your risk of bleeding during the biopsy. Prothrombin time (PT), activated partial thromboplastin time (aPTT), and platelet count will be measured; if any of these show a risk, your doctor may order a transfusion of platelets or fresh frozen plasma (FFP) before the biopsy A sonogram may be ordered as a precaution to check for any previously undiscovered liver mass or other abnormality.
Biopsies are usually outpatient procedures. Patients are required to remain in bed for two to six hours after the biopsy, so it is wise to use the lavatory right before the biopsy.
During the biopsy, you’ll be asked to lie down with your right arm up and resting behind your head, giving the doctor unobstructed access to the right upper abdomen. If you feel nervous, it is common to take a mild sedative , which your doctor can provide for you, though it is best to remain awake during the test, since the doctor will ask you to hold your breath momentarily.
After the biopsy, you’ll lie on your back or right side for two to six hours while being monitored for the occurrence of any bleeding.
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The possible complications from a liver biopsy—bleeding, piercing nearby organs, and pain—sound ominous, but fewer than 1 percent of patients who undergo a liver biopsy report any complications at all. During ultrasound-guided biopsies, the rate is negligible.
A small amount of bleeding after a liver biopsy is common and is not a cause for worry. If excessive bleeding occurs, it is likely to happen within a few hours of the biopsy and can usually be resolved with blood transfusions and close monitoring.
Because the human body is densely packed, it is possible that even an experienced doctor can puncture a nearby organ—usually a kidney, lung, or colon—by mistake. The tiny hole made by the biopsy needle usually heals by itself, though the patient will be kept in the hospital until the healing is complete. Occasionally, the gallbladder will be punctured, causing a small leak of bile into the abdomen. Bile leaks can cause peritonitis, an inflammation of the abdominal fluid, so this situation requires intravenous antibiotic treatment and monitoring.
About one-third of patients describe their post-biopsy pain as similar to the pain that follows being hit in the side or stomach. When pain occurs, the doctor will recommend a small dose of acetaminophen, but caution the patient against taking nonsteroidal anti-inflammatory drugs (NSAIDs) or aspirin for a week. If the post-biopsy pain is still present after 24 hours, the patient should return to the hospital immediately.
A biopsy is not a major surgery, so patients need not plan a long recuperation. They’re advised to rest for a day and avoid driving, dancing, and sports for 24 hours. After a day, they can remove the small dressing, shower, and resume their normal routines. Those with physically strenuous jobs should take it easy for an extra day or two before resuming any rigorous activity. Unless a symptom appears, such as shortness of breath, fever, chills, abdominal distention, or severe pain, there should be no aftereffects from a liver biopsy. As a rule, it is a quick and relatively painless test.
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