Luteinizing hormone (LH) surge typically lasts only how many hours?

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Multiple Choice

Luteinizing hormone (LH) surge typically lasts only how many hours?

Explanation:
The LH surge is a brief hormonal spike that signals ovulation. LH rises rapidly in response to increasing estrogen and remains elevated for a short window—about one to two days. Within typical clinical teaching and exam conventions, this surge can last up to roughly 48 hours, which makes the 48-hour duration the best fit among the options. Shorter time frames don’t capture the full peak of LH, while much longer durations exceed the usual surge.

The LH surge is a brief hormonal spike that signals ovulation. LH rises rapidly in response to increasing estrogen and remains elevated for a short window—about one to two days. Within typical clinical teaching and exam conventions, this surge can last up to roughly 48 hours, which makes the 48-hour duration the best fit among the options. Shorter time frames don’t capture the full peak of LH, while much longer durations exceed the usual surge.

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