Which Is the Most Accurate US Measurement of Fetal Age

question 24

Multiple Choice

Which is the most accurate US measurement of fetal age in later pregnancy (second and third trimesters) ?

• A) Fetal age cannot be determined via US measurement in the second or third trimesters.
• B) Biparietal diameter (BPD).
• C) Crown-to-rump length.
• D) Fetal femoral length.

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Definitions:

Population Parameters

Numeric characteristics that describe or summarize features of an entire population, such as mean or standard deviation.

Outliers

Data points that differ significantly from other observations in a data set, possibly indicating a variable error or an unusual event.

Sample Proportion

The ratio of participants or units in a sample exhibiting a particular characteristic to the total sample size, often used in statistical analysis.

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data points, calculated as the square root of the variance.