Specimens for Activated Clotting Times Performed on the HEMOCHRON Jr

question 21

Multiple Choice

Specimens for activated clotting times performed on the HEMOCHRON Jr. are obtained by:

• A) venipuncture.
• B) dermal puncture.
• C) arterial puncture.
• D) both A and B

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Definitions:

Smoothing Constant

A parameter used in exponential smoothing methods to adjust the level of smoothing applied to time series data, influencing the weight given to recent versus older observations.

Mean Absolute Deviation

The average of the absolute differences between each data value and the mean of the data set, measuring variability.

Forecast Error

The difference between the actual value and its forecasted value in a time series analysis.

Sum of Squares

The total squared difference between each observation and the mean of the data set, used in statistical analysis to measure variation.