During the luteal phase, serum progesterone rises from 2 ng/ml to 15 ng/ml. What is the fold increase in progesterone concentration?
Answer
7.5‑fold increase
The correct answer is 7.5‑fold increase — Express the result as a fold increase.
Step-by-step solution
- Identify the initial concentration (2 ng/ml) and the final concentration (15 ng/ml).
- Calculate the fold increase by dividing the final value by the initial value: 15 ÷ 2 = 7.5.
- Express the result as a fold increase.
Common mistake: Subtracting the values instead of dividing to find fold increase
Concept tested: Quantitative change in hormone level
Published · How this solution was prepared and checked
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