Clotting Labs needs to know NRS 325

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9 Terms

1
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Prothrombin Time (PT) / International Normalized Ratio (INR) NORMAL

~1

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Prothrombin Time (PT) / International Normalized Ratio (INR) Therapeutic ING

Varies, usually 2-3

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Partial Thromboplastin Time (PTT or aPTT) Normal

21-35 seconds

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Partial Thromboplastin Time (PTT or aPTT) Therapeutic 

Varies, usually 60-80 seconds

5
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D-Dimer: what it measures

a protein fragment your body make when a blood clot dissolves

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D-Dimer: high levels indicate

test result may indicate that you have a blood clotting condition, but it doesn’t guarantee that you have one

7
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Subtherapeutic

refers to a dosage or concentration of a drug that is below the level needed to produce the desired medical effect

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supratherapeutic

refers to a dosage or concentration that is above the normal or maximum therapeutic range

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What does it mean, and what should the nurse do, if INR is subtherapeutic?

the patient's blood is clotting too quickly and they have inadequate protection against blood clots (thromboembolism)