COVID-19 and Cardiac Troponin
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Questions and Answers

What was the percentage of hospitalized COVID-19 patients with elevated cardiac troponin?

  • 12.9% (correct)
  • 9.3%
  • 25.6%
  • 16.7%
  • What was the average age of patients with elevated cardiac troponin compared to those without?

  • 68 years vs. 50 years
  • 58 years vs. 62 years
  • 64 years vs. 55 years (correct)
  • 60 years vs. 58 years
  • What was the percentage of severe COVID-19 illness (SpO2 < 90%) in patients with elevated cardiac troponin?

  • 96.4%
  • 88.7%
  • 93.5% (correct)
  • 80.2%
  • What was the difference in arterial oxygen saturation (SpO2) between patients with elevated cardiac troponin and those without?

    <p>80% vs. 88%</p> Signup and view all the answers

    What was the difference in PaO2/FiO2 ratio between patients with elevated cardiac troponin and those without?

    <p>Lower in patients with elevated troponin</p> Signup and view all the answers

    What were the differences in total leukocyte counts (TLC) between patients with elevated cardiac troponin and those without?

    <p>Elevated in patients with elevated troponin</p> Signup and view all the answers

    What were the differences in liver enzyme levels between patients with elevated cardiac troponin and those without?

    <p>Higher in patients with elevated troponin</p> Signup and view all the answers

    What were the differences in serum creatinine levels between patients with elevated cardiac troponin and those without?

    <p>Higher in patients with elevated troponin</p> Signup and view all the answers

    What were the differences in N-terminalPro Brain natriuretic peptide levels between patients with elevated cardiac troponin and those without?

    <p>Higher in patients with elevated troponin</p> Signup and view all the answers

    What were the differences in d-dimer levels between patients with elevated cardiac troponin and those without?

    <p>Higher in patients with elevated troponin</p> Signup and view all the answers

    What was the percentage of patients with elevated cardiac troponin who were admitted to the intensive care unit?

    <p>90.3%</p> Signup and view all the answers

    What was the percentage of patients with elevated cardiac troponin who were on a ventilator?

    <p>61.3%</p> Signup and view all the answers

    What was the percentage of patients with elevated cardiac troponin who had higher mortality?

    <p>64.5%</p> Signup and view all the answers

    What was the reference range of the test to measure cardiac troponin I (cTnI)?

    <p>0.1–50.0 µg/L</p> Signup and view all the answers

    What was the within-run precision of the test to measure cTnI?

    <p>10%</p> Signup and view all the answers

    What was the between-run precision of the test to measure cTnI?

    <p>15%</p> Signup and view all the answers

    What type of assay was used to measure cardiac troponin I (cTnI)?

    <p>Immunofluorescence-based assay</p> Signup and view all the answers

    How was the cardiac troponin I (cTnI) measured in the whole blood sample, plasma, or serum?

    <p>Fluorescence immunochromatography technique</p> Signup and view all the answers

    What statistical analysis was used to determine the association between elevated cardiac troponin and in-hospital mortality?

    <p>Multivariable Cox regression analysis</p> Signup and view all the answers

    How were the data analyzed in the study?

    <p>SPSS V.21 and R software</p> Signup and view all the answers

    What was the within-run precision of the cardiac troponin I test?

    <p>10%</p> Signup and view all the answers

    What was the lower detection limit of the cardiac troponin I test?

    <p>$ extless$0.1 µg/L</p> Signup and view all the answers

    What percentage of the study population had elevated cTnI levels?

    <p>13%</p> Signup and view all the answers

    What was the median age of the study population?

    <p>56.5 years</p> Signup and view all the answers

    What percentage of patients with elevated troponin were on a ventilator?

    <p>61.3%</p> Signup and view all the answers

    What was the reference range of the cTnI test?

    <p>0.1–50.0 µg/L</p> Signup and view all the answers

    What was the mortality rate of patients with elevated troponin?

    <p>64.5%</p> Signup and view all the answers

    What type of analysis was used to identify the association between elevated cardiac troponin and in-hospital mortality?

    <p>Multivariable Cox regression analysis</p> Signup and view all the answers

    What software was used to analyze the data?

    <p>SPSS V.21 and R software</p> Signup and view all the answers

    How many patients were included in the study?

    <p>240</p> Signup and view all the answers

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