Sample results
Biliary tract obstruction occurs when the bile ducts that carry bile from the liver to the small intestine become blocked. It is caused by gallstones, tumors, inflammation, or strictures that prevent normal bile flow. The Prothrombin Time (PT/INR) test is the most important test for detecting dangerous clotting complications that develop when bile duct blockage impairs Vitamin K absorption.
Biliary tract obstruction is caused by gallstones, tumors, inflammation, strictures, or pancreatic conditions that physically block the bile ducts. Gallstones are the most common cause, forming in the gallbladder and traveling into the bile ducts where they create blockages. Other causes include pancreatic cancer, cholangiocarcinoma (bile duct cancer), pancreatitis, or scar tissue from previous surgeries. When bile cannot flow normally from the liver to the small intestine, it builds up in the liver and bloodstream, causing jaundice and other serious complications.
The Prothrombin Time (PT/INR) test is the most important blood test for biliary tract obstruction because it detects dangerous clotting problems that develop when blocked bile ducts prevent Vitamin K absorption. This test measures how long your blood takes to clot and can reveal life-threatening bleeding risks before they become emergencies. The Carbohydrate Antigen (CA) 19-9 test is also essential for identifying the underlying cause of the obstruction, as elevated levels may indicate cancer, inflammation, or other serious conditions. While imaging studies like ultrasound or MRI confirm the physical blockage, these blood tests assess how the obstruction is affecting your body and help guide treatment decisions.
You should get tested if you develop yellowing of your skin or eyes (jaundice), dark urine that looks like tea or cola, pale or clay-colored stools, or severe abdominal pain in your upper right side. Other warning signs include unexplained itching all over your body, fever with chills, nausea and vomiting, or unexplained weight loss. These symptoms indicate that bile is not flowing properly and requires immediate medical evaluation. Anyone with a history of gallstones, pancreatic disease, or abdominal surgery should be especially alert to these warning signs and seek testing promptly.
What this means
Your INR is slightly elevated above the typical therapeutic range for Warfarin therapy. While this provides strong protection against blood clots, it also increases your risk of bleeding or bruising more easily. Your doctor may recommend a small adjustment to your Warfarin dose.
Recommended actions
Contact your prescribing doctor to discuss potential Warfarin dose adjustment
Be cautious with activities that could cause injury or bleeding
Monitor your diet for consistency in vitamin K intake (leafy greens, broccoli)
Retest in 1-2 weeks after any medication changes to ensure levels stabilize
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Sample results
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