Liver Function Test Values Diagnostic Interpretation

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.

Liver function test values diagnostic interpretation.

A structured approach to the interpretation of liver function tests lfts including examples of the common patterns of lft derangement. Some of these tests measure how well the liver is performing its normal functions of producing protein and clearing bilirubin a blood waste product. The tests measure the levels of certain enzymes and proteins in your blood. It is a series of blood tests used to diagnose and monitor the condition of the liver.

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. Liver enzymes especially alp are not specific for primary liver disease. Liver function tests are a battery of tests for the initial detection and management of liver diseases.

Beyond the liver function tests prothrombin time provides another marker of liver synthetic function and a low platelet count suggests portal hypertension. The other terms for liver function tests are liver panel liver profile hepatic function panel and liver function panel. Normal values for albumin are between 35 50 g l 3 5 to 5 0 grams per deciliter g dl bilirubin. Bilirubin in body is a careful balance between.

Diagnostic value of bilirubin levels. Total protein should be between 63 80g l 6 3 to 8 0 g dl albumin. 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 tests are blood tests used to help diagnose and monitor liver disease or damage.

Guidelines on the interpretation and evaluation of abnormal liver test results have been published. The liver performs different kinds of biochemical synthetic and excretory functions so no single biochemical test can detect the global functions of the liver. It measures the levels of some enzymes and proteins present in the blood. Hence the commonly used term liver function test is inaccurate and the term liver tests is used in this chapter.