Question 1

what does it mean if my prothrombin time blood test is high?

Accepted Answer

Blood clotting : Defective.  Prolonged prothrombin time can be due to deficiency of   a number of coagulation factors.  A common cause it treatment with warfarin/coumdain. Liver disease is an other common reason for prolonged pt.  Depending on the prolongation, the person may be at risk of bleeding.

Question 2

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

Accepted Answer

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.

Question 3

i take eliquis 5 mg twice daily. my prothrombin time is 10.3. should that be more elevated or can it be normal? does it mean the eliquis isnt working. ?

Accepted Answer

: Eliquis does not affect the prothrombin time so it should be normal when taking Eliquis. It does not mean the Eliquis isn’t working. Good luck to you!

Question 4

thrombocytopenia affects your prothrombin time test on your lab results?

Accepted Answer

No.  Bleeding time.: In thrombocytopenia, both prothrombin time (pt) and partial thromboplastin time (PTT) are normal.  But bleeding time and platelet count are affected.  Bleeding time is prolonged and the platelet count is decreased.

Question 5

my dr did a random routine blood test of prothrombin time and inr. my prothrombin time was 10.3 and inr was 0.9. i'm healthy in my 30s and not on any medications. does my slow time mean i'm more prone to a stroke or a heart attack?

Accepted Answer

: Some clinicians feel that a prothrombin time under 10 seconds could indicate that blood clots sooner than normal, others don't place much credence in that. In any event your blood clotted in good time. Have you had any personal or family history of clotting issues like unexplained phlebitis? If not, I wouldn't be concerned unless you're taking oral contraceptives and/or smoke.

Question 6

dvt in arm back in october, found out i have factor v leiden, been put in xarelto 20 for life, clot gone completely, prothrombin time and conc test results:
control: 13.3 seconds
patient time: 14.1 seconds 
concentration: 92%
inr: 1.06

thoughts?

Accepted Answer

: The thrombosis has been controlled with the medication. Continue to monitor with your labs and PCP. If you notice swelling, the clot may have returned. Watch for changes and report to the PCP.

Question 7

high prothrombin time levels affect bleeding?

Accepted Answer

Yes.: Prothrombin times about three times higher than normal for the particular lab may be a risk for abnormal bleeding.

Question 8

i had an aptt of 36.5, a aptt 1:1 np 	of 33.3, and a prothrombin time of 13.5.  all are listed under high but my doctor is not concerned? is this ok?

Accepted Answer

Normal range?: More information is needed including the "normal range" of the tests. Why were the tests ordered? However the elevated aptt corrects with mixing with normal blood (1:1 mix) suggesting a coagulation factor deficiency. Consider repeat testing and asking for more information about cause. Your doctor may seek the opinion of a hematologist.

Question 9

what is thrombocytopenia and how is a prothrombin time test used?

Accepted Answer

Blood clotting: Thrombocytopenia means low level of blood plateletes. Prothrombin time is a test for extrinsic coagulation pathway that is initiated with factor vii. Vitamin k deficiency or use of Coumadin (warfarin) or liver function deficiency will prolong the prothrombin time, while several blood clotting diseases that affect intrinsic coagulation such as von willibrand or hemophila will not affect prothrombin time.

Question 10

what types of drugs an foods interfere with the coagulation test of prothrombin time?

Accepted Answer

Depends on : Circumstances.  In a normal person, usual drugs and foods do not affect pt measurably.  In patients on warfarin, foods both prolong pt, e.g., grapefruit, or shorten it, e.g., green leafy vegetables.  Many drugs affect pt, e.g., birth control pills, isoniazid, anti-fungals, antibiotics,  and many other drugs metabolized through cytochrome p450 system, and barbiturates and alcohol.

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Doctor answers about:

What does high prothrombin time test result mean

A member asked:

What does it mean if my prothrombin time blood test is high?

A member asked:

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

A member asked:

I take eliquis 5 mg twice daily. my prothrombin time is 10.3. should that be more elevated or can it be normal? does it mean the eliquis isnt working. ?

A member asked:

Thrombocytopenia affects your prothrombin time test on your lab results?

A member asked:

My dr did a random routine blood test of prothrombin time and inr. my prothrombin time was 10.3 and inr was 0.9. i'm healthy in my 30s and not on any medications. does my slow time mean i'm more prone to a stroke or a heart attack?

A member asked:

Dvt in arm back in october, found out i have factor v leiden, been put in xarelto 20 for life, clot gone completely, prothrombin time and conc test results: control: 13.3 seconds patient time: 14.1 seconds concentration: 92% inr: 1.06 thoughts?

A member asked:

High prothrombin time levels affect bleeding?

A member asked:

I had an aptt of 36.5, a aptt 1:1 np of 33.3, and a prothrombin time of 13.5. all are listed under high but my doctor is not concerned? is this ok?

A member asked:

What is thrombocytopenia and how is a prothrombin time test used?

A member asked:

What types of drugs an foods interfere with the coagulation test of prothrombin time?

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