Observer bias occurs when researchers alter the outcome of a study. This process is not typically deliberate, and involves extremely subtle changes both in the way researchers interact with subjects in the study and in what observers choose to see.
What is an elevated INR? The INR, or International Normalized Ratio, is a measure of how long it takes your blood to clot. A prothrombin time (PT) is a another blood test done to help measure your INR. The higher your PT or INR, the longer your blood takes to clot. An elevated PT or INR means your blood is taking longer to clot than your healthcare provider believes is healthy for you. When your PT or INR is too high, you have an increased risk of bleeding. What increases my risk for an elevated INR?
Both mother and son tested negative for any type of hepatitis. An elevated SGOT usually is a reflection of damage to liver cells. Hepatitis due to virus or drugs is the most likely cause. A value high above 200ut/ml would probably not be due to alcohol-induced liver damage. The following are the medical conditions in which SGOT may be raised. Acute kidney failure. Cirrhosis (scarring of the liver)