A client with liver failure is at risk for bleeding due to impaired synthesis of clotting factors. Which assessment should the nurse prioritize?

Evaluating a patient with liver failure involves understanding the biosynthetic pathways of coagulation. The liver produces vitamin K dependent clotting factors, and monitoring laboratory trends is essential to assess the severity of coagulopathy and the risk for spontaneous internal bleeding. Choice A rationale Urine output monitoring assesses renal perfusion and fluid balance, which is important in liver failure due to the risk of hepatorenal syndrome. However, it does not directly measure the liver ability to synthesize the essential factors needed for clotting. Choice B rationale Oxygen saturation measures the percentage of hemoglobin bound to oxygen in the blood. While respiratory status is important, it is not the priority assessment for a patient specifically at risk for hemorrhage due to impaired clotting factor synthesis. Choice C rationale Blood pressure can indicate hemodynamic stability and signs of shock if a bleed has already occurred. However, it is a late indicator of hemorrhage and does not provide information regarding the actual physiological capacity for blood coagulation. Choice D rationale The liver synthesizes factors I, II, VII, IX, and X. PT and INR directly measure the extrinsic pathway of coagulation. A normal PT is 11 to 13.5 seconds, and a normal INR is 0.8 to 1.1.