Lab Values Podcast by NURSING.com (Nursing Podcast, normal lab values for nurses for NCLEX®) by NURSING.com (NRSNG)

INR

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What is the Lab Name for International Normalized Ratio (INR) Lab Values?

International Normalized Ratio

 

What is the Lab Abbreviation for International Normalized Ratio?

INR

 

What is International Normalized Ratio in terms of Nursing Labs?

International normalized ratio(INR) takes results from a prothrombin time test and standardizes it regardless of collection method.

 

What is the Normal Range for International Normalized Ratio?

0.8 – 1.2 Therapeutic Levels on Warfarin 2.0 – 3.5

 

What are the Indications for International Normalized Ratio?

  • Evaluate therapeutic doses of Warfarin
  • Identify patients at higher risk for bleeding
  • Identify cause of:
    • Bleeding
    • Deficiencies
 
What would cause Increased Levels of International Normalized Ratio?
  • Disseminated Intravascular Coagulation (DIC)
  • Liver disease
  • Vitamin K deficiency
  • Warfarin
 
What would cause Decreased Levels of International Normalized Ratio?
  • Too much vitamin K
  • Estrogen containing medications such as birth control