Which Laboratory Value Should the Nurse Review to Validate a Diagnosis

question 33

Multiple Choice

Which laboratory value should the nurse review to validate a diagnosis of a myocardial infarction (MI) that was suspected of occurring approximately 3 hours earlier?

• A) CK
• B) Troponin T assay
• C) Myoglobin
• D) PTT

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Definitions:

Autocorrelation

Autocorrelation is a statistical measure used to determine the degree of similarity between a given time series and a lagged version of itself over successive time intervals.

R Square

A statistical measure that represents the proportion of the variance for a dependent variable that's explained by an independent variable or variables in a regression model.

Residual Plots

Graphical representations that show the differences (residuals) between observed and predicted values in a regression analysis.

Independent Variable

A variable that is manipulated in an experiment to observe its effect on a dependent variable.