Can stress affect your INR levels?

Can stress affect my PT/INR level when taking warfarin? Science has shown that because of the effect stress can have on your body, warfarin can stay in your system longer than normal, causing a spike in PT/INR levels. 1. If you are able to recognize when you are stressed, you can take steps to manage it.
A.

What does it mean if your INR is too high?

This ratio — which allows for easier comparisons of test results from different laboratories — is used if you take blood-thinning medications. When the INR is higher than the recommended range, it means that your blood clots more slowly than desired, and a lower INR means your blood clots more quickly than desired.
  • What does a high INR mean?

    The INR, or International Normalized Ratio, is a measure of how long it takes your blood to clot. An elevated PT or INR means your blood is taking longer to clot than your healthcare provider believes is healthy for you. When your PT or INR is too high, you have an increased risk of bleeding.
  • What should your INR be if I am on warfarin?

    The higher your INR is, the longer it takes your blood to clot. In other words, as the INR increases above a given level, the risk of bleeding and bleeding-related events increases. The most common INR target range for someone on warfarin is somewhere between 2.0 and 4.0.
  • What is a normal PT INR?

    PT is measured in seconds. Most of the time, results are given as what is called INR (international normalized ratio). If you are not taking blood thinning medicines, such as warfarin, the normal range for your PT results is: 11 to 13.5 seconds. INR of 0.8 to 1.1.
B.

What can happen if my INR is too high?

The PT is reported as the International Normalized Ratio (INR). If the INR is too low, blood clots will not be prevented, but if the INR is too high, there is an increased risk of bleeding. This is why those who take warfarin must have their blood tested so frequently.
  • What happens when the INR is too high?

    The PT is reported as the International Normalized Ratio (INR). If the INR is too low, blood clots will not be prevented, but if the INR is too high, there is an increased risk of bleeding. This is why those who take warfarin must have their blood tested so frequently.
  • What does it mean to have a high INR?

    The INR, or International Normalized Ratio, is a measure of how long it takes your blood to clot. An elevated PT or INR means your blood is taking longer to clot than your healthcare provider believes is healthy for you. When your PT or INR is too high, you have an increased risk of bleeding.
  • What are the side effects of warfarin?

    Warfarin side effects that require immediate medical attention
    • Severe bleeding, including heavier than normal menstrual bleeding.
    • Red or brown urine.
    • Black or bloody stool.
    • Severe headache or stomach pain.
    • Joint pain, discomfort or swelling, especially after an injury.

Updated: 2nd October 2019

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