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Doctor insights on: Causes Of Low Prothrombin Time

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What does it mean when my prothrombin time blood test is high, compared to normal or low?

What does it mean when my prothrombin time blood test is high, compared to normal or low?

Can mean Vit K low.: If prothrombin time blood test is high, without other high levels, it can mean a vitamin k deficiency or warfarin use. Vitamin k helps in the function and viability of factors ii, vii, ix, and x and these affect prothrombin time. If there are other levels altered, it could be a factor v, or x deficiency, disseminated intravascular coagulation (dic), or liver failure. See your doctor to be sure. ...Read more

Dr. Shimae Fitzgibbons
206 doctors shared insights

Prothrombin Time (Definition)

Prothrombin time provides information regarding the extrinsic pathway involved in clot formation. It's commonly used ...Read more


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Daughter has high monocytes, eos, eos absolute, platelets and prothrombin time. What can cause this?

Daughter has high monocytes, eos, eos absolute, platelets and prothrombin time. What can cause this?

See a hematologist : There are several differentials to be considered. Only a hematologist ( a blood specialist) can guide you on the most appropriate next step to find the cause. Looking at the blood under the microscope and reviewing other blood tests as well as physical exam can narrow down the list. Often times, a bone marrow biopsy may be needed. ...Read more

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What can cause my daughter to have high monocytes, eos, eos absolute, platelets and prothrombin time?

What can cause my daughter to have high monocytes, eos, eos absolute, platelets and prothrombin time?

Check with doc: Isolated increases in monocytes and eosinophils are often normal, especially if the overall WBC is normal and the patient is not sick. There are many causes for an elevated pro time - typically taking anticoagulants (warfarin, coumadin), some bleeding problems, vit k malabsorption or poor nutrition. If more than 2 seconds above normal have it checked out. ...Read more

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What does an abnormal prothrombin time test mean for you?

What does an abnormal prothrombin time test mean for you?

Abnormal clotting : An abnormal prothrombin time means that there is something wrong with your blood's ability to form clots and prevent bleeding. There are many conditions that result in such an abnormality, and you need to have your doctor figure out what the problem is based on other test findings and your symptoms. Sometimes you'll need a hematologist to consult if there is a chance of a serious bleeding problem. ...Read more

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How can I get a normal range of prothrombin time?

How can I get  a normal range of prothrombin time?

12 Seconds, but INR: Normal prothrombin time varies a from lab to lab; the average value is about 12 seconds. To compensate for the variability, the ratio of each lab's normal to the patient value is reported as international normalized ratio (inr) and an inr of 1.0 is normal. ...Read more

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What does a prothrombin time measurement do?

Extrinsic pathway of: Clotting. Pt is dependent on levels of multiple coagulation factors, including x, ix vii, v, and ii. ...Read more

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What is the definition or description of: prothrombin time?

What is the definition or description of: prothrombin time?

PTT: Prothrombin time provides information regarding the extrinsic pathway involved in clot formation. It's commonly used to monitor warfarin therapy. ...Read more

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Decrease in prothrombin time can lead to what?

Decrease in prothrombin time can lead to what?

Repeat test.: A shortened clotting time that does not appear to reflect technical error has been associated with an increased risk of thrombosis, recurrent thrombosis, recurrent miscarriage, or bleeding, and may increase the risk of thrombosis associated with other common thrombotic risk factors (eg, factor v leiden, obesity, increased levels of d-dimer). ...Read more

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When would a baby of 1-2 months need prothrombin time testing? What are they looking for?

When would a baby of 1-2 months need prothrombin time testing? What are they looking for?

Unexplaind bruises: When a doctor orders prothrombin time and other clotting tests, he/she is probably looking for a bleeding disorder that may explain bruises in a baby that young. ...Read more