Liver Function Test Values Diagnostic Interpretation

Diagnostic value of bilirubin levels.

Liver function test values diagnostic interpretation.

Normal values for albumin are between 35 50 g l 3 5 to 5 0 grams per deciliter g dl bilirubin. Liver function tests are a battery of tests for the initial detection and management of liver diseases. Bilirubin in body is a careful balance between. Liver function tests and their interpretation indian journal of pediatrics volume 74 july 2007 665 spectrophotometric determination at 430 nm 1 a.

Hence the commonly used term liver function test is inaccurate and the term liver tests is used in this chapter. The tests measure the levels of certain enzymes and proteins in your blood. Liver enzymes especially alp are not specific for primary liver disease. It measures the levels of some enzymes and proteins present in the blood.

To evaluate their clinical significance a combination of history clinical signs physical examination diagnostic imaging and other liver function test results. Guidelines on the interpretation and evaluation of abnormal liver test results have been published. Liver function tests are blood tests used to help diagnose and monitor liver disease or damage. The severity of liver dysfunction or biliary obstruction is reflected in the bilirubin level and the degree of liver synthetic function can also be indicated by the albumin level.

Some of these tests measure how well the liver is performing its normal functions of producing protein and clearing bilirubin a blood waste product. A structured approach to the interpretation of liver function tests lfts including examples of the common patterns of lft derangement. The liver performs different kinds of biochemical synthetic and excretory functions so no single biochemical test can detect the global functions of the liver. Beyond the liver function tests prothrombin time provides another marker of liver synthetic function and a low platelet count suggests portal hypertension.

1 2 useful algorithms are presented that parallel the recommendations in this chapter. Step 2 compare alt and alp levels key facts about alt and alp alt is found in high concentrations within hepatocytes and enters the blood following hepatocellular injury. Signs of liver dysfunction examination palmar erythema spider naevi small liver bigg p spleen ascites hepatic encephalopathy imaging nodular liver edge portal real liver function tests synthetic function prothrombin time. Liver function test normal values total protein.