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Normal: 11-15 seconds



A biochemical test used to assess the activity of multiple clotting factors in the blood and the ability of the liver to produce these factors.


Increased/prolonged values

Indicate clotting factors deficiencies and may and indication of hepatic function.  PT is prolonged in liver disease.


TPN relevance

A biochemical test that assists the clinician in determining the nutritional status of the patients, useful for patient assessment and monitoring of liver function.




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