Analysis of a blood sample from an individual who had fasted for 24 hours would be expected to reveal high levels of which of the following?

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After fasting for 24 hours, the body's glucose stores become depleted, leading to an increase in the hormone glucagon. Glucagon stimulates the liver to break down glycogen into glucose and release it into the bloodstream to maintain blood sugar levels. The other hormones listed (gastrin, insulin, and secretin) are typically involved in digestive processes and would not be expected to be elevated in a fasting state. Glucose levels may actually be low in a fasting individual due to the lack of dietary intake.

Analysis of a Blood Sample from an Individual Who Had