This might not be the right place to ask but I would like to

This might not be the right place to ask but I would like to know what is the rational behind vital sign changes in hypoglycemia? Why is it that there is tachycardia, hypertension, tachypnea and hypothermia? I\'m assuming tachycardia because the body needs more energy or oxygen but doesn\'t that mean that there should be hypotension?

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