Which Analysis of Maternal Serum Is the Best Predictor of Chromosomal

question 8

Multiple Choice

Which analysis of maternal serum is the best predictor of chromosomal abnormalities in the fetus?

• A) Biophysical profile
• B) Multiple-marker screening
• C) Lecithin-to-sphingomyelin ratio
• D) Blood type and crossmatch of maternal and fetal serum

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Definitions:

Variable Expenses

Costs that vary directly and proportionately with changes in production volume or business activity.

Fixed

Refers to an interest rate or investment that remains constant and does not fluctuate over a specified period.

Operating Leverage

This is a measure of how revenue growth translates into growth in operating income, showing the proportion of fixed costs in a company's cost structure.

Financial Leverage

Financial leverage refers to the use of borrowed funds to increase the potential return on investment, amplifying both potential gains and losses.