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Term Description

Therapeutic INR range (TTR) is a way of summarizing international normalized ratio (INR) control over time. This term identifies a patient's TTR when the Rosendaal method is used. The Rosendaal method uses linear interpolation to assign an INR value to each day between successive observed INR values. Gaps of greater than 56 days between INR values are not interpolated. After interpolation, the percentage of time during which the interpolated INR values lie within the target therapeutic range is calculated. The formula for TTR for a patient is: [Number of days that a patient's interpolated INR result is in therapeutic range] / [Number of days for which the patient has an interpolated INR result]. (See http://www.qualitymeasures.ahrq.gov/content.aspx?id=32739)

LOINC Names Get Info

Fully-Specified Name
Days in therapeutic INR range/Days INR result determined:Ratio:Pt:^Patient:Qn:
Long Common Name
Days in therapeutic INR range/Days INR result determined [Ratio]
Short Name
Ds INR range/Ds INR det Patient-Rto
Display Name
Days in therapeutic INR range/Days INR result determined [Ratio]
Consumer Name Alpha Get Info
Days in Therapeutic INR Range/Days INR Result Determined

Part Model Get Info

  • Component
    Days in therapeutic INR range/Days INR result determined
    LP285862-1
    • Analyte
      Days in therapeutic INR range/Days INR result determined
      LP285862-1
      • Component Numerator
        Days in therapeutic INR range
        LP157333-8
        • Component Numerator Core
          Days in therapeutic INR range
          LP157333-8
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        Days INR result determined
        LP157334-6
        • Component Denominator Core
          Days INR result determined
          LP157334-6
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Ratio
    LP6852-0
  • Time
    Pt
    LP6960-1
  • System
    ^Patient
    LP310005-6
    • System Core
      NULL
       
    • Super System
      Patient
      LP6985-8
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
H&P.HX.LAB
Type
Laboratory
First Released
Version 2.42
Last Updated
Version 2.73 (MIN)
Order vs. Observation
Both
Common Test Rank Get Info
4504

Formula (Readable)

[Number of days that a patient's interpolated INR result is in therapeutic range] / [Number of days for which the patient has an interpolated INR result]

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)INR dny v terapeutickém rozmezí/dny se stanoveným výsledkem INR:Poměr:Časový bod:^Pacient:Kvantitativní:
el-GRGreek (Greece)Ημέρες σε θεραπευτικό εύρος INR/Ημέρες προσδιορισμού αποτελέσματος INR:Ratio:Pt:^Ασθενής:Qn:
Synonyms: - H&P.HX H&P.HX.LAB Pt Qn Ratio Ασθενής Ημέρες προσδιορισμού αποτελέσματος INR Ημέρες σε θεραπευτικό εύρος INR
es-ESSpanish (Spain)Días con INR en rango terapéutico/Resultados determinados del INR en días:Fracción:Punto temporal:^paciente:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Días en rango de INR terapéutico / Resultados de INR de días determinados:Proporción:Punto temporal:^ Paciente:Cuantitativo:
it-ITItalian (Italy)Giorni nel range terapeutico INR/Giorni determinato il risultato dell'INR:Rapporto:Pt:^Paziente:Qn:
Synonyms: Anamnesi Anamnesi pertinente a esami di laboratorio paziente Punto nel tempo (episodio)
nl-NLDutch (Netherlands)dagen in therapeutische INR range/aantal dagen INR resultaat bepaald:verhouding:moment:^patiënt:kwantitatief:
ru-RURussian (Russian Federation)Дней в терапевтическом МНО диапазоне/Дней МНО результат определен:Отношение:ТчкВрм:^Пациент:Колич:
Synonyms: Количественный Коэффициент;Соотношение;Пропорция Точка во времени;Момент
tr-TRTurkish (Turkey)Günler, terapötik INR aralığında/Günler, INR sonuçlarının saptandığı:Oran:Zmlı:^Hasta:Kant:
zh-CNChinese (China)INR 治疗窗内天数/已确定 INR 结果的天数:比率:时间点:^患者:定量型:
Synonyms: INR 结果已确定的天数;患者具有插值型 INR 结果的天数 Time in Therapeutic INR range;TTR;治疗窗内时间;INR在治疗目标范围内的时间;INR在治疗有效范围内的时间;病人达到预期抗凝强度的时间;international normalized ratio;INR;国际标准化比值;INR 在治疗目标范围内的天数 化验室 化验科 医疗服务对象;客户;病人;病患;病号;超系统 - 病人 历史纪录与体格检查 历史纪录与体格检查.历史记录;历史纪录与体格检查.历史记录类;历史纪录与体格检查.历史记录类别;历史纪录与体格检查.病史;历史纪录与体格检查.病史类;历史纪录与体格检查.病史类别;历史纪录与体格检查.病史记录;历史纪录与体格检查.病史记录类;历史纪录与体格检查.病史记录类别;历史纪录与体格检查小节.历史记录;历史纪录与体格检查小节.历史记录类;历史纪录与体格检查小节.历史记录类别;历史纪录与体格检查小节.病史;历史纪录与体格检查小节.病史类;历史纪录与体格检查小节.病史类别 历史纪录与体格检查小节 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 国际标准化比 国际标准化比值 国际标准化比值（International normalized ratio，International normalization ratio，INR） 国际标准化比率 国际规范化比 国际规范化比值 国际规范化比率 实验室 实验室类别 时刻;随机;随意;瞬间 来自于不同体系的两个观察指标之比;比;比值 检验科 治疗 治疗性的 治疗的 病史（历史记录、历史、史）与体格检查（身体检查、查体、PX、体格检查结果）.病史（历史记录、历史、史）.实验室（实验室检验项目、检验项目、检验、检验医学、化验项目、化验） 病史与体格检查

Example Units

UnitSource
%Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=72281-9