Final answer:
The correct sequence of events leading to polyuria and dehydration involves chronic underproduction of ADH or a mutation in the ADH receptor, resulting in diabetes insipidus. This leads to water loss through frequent urination, causing increased thirst and potential electrolyte imbalances.
Step-by-step explanation:
The correct sequence of events leading to polyuria and dehydration is as follows: Chronic underproduction of antidiuretic hormone (ADH) or a mutation in the ADH receptor results in diabetes insipidus. If the posterior pituitary does not release enough ADH, water cannot be retained by the kidneys and is lost as urine, leading to polyuria (frequent urination). The increased frequency of urination causes increased thirst (polydipsia) because water intake cannot adequately compensate for the water lost through urine. In severe cases, polyuria and dehydration can lead to electrolyte imbalances.
polyuria and dehydration is as follows: Chronic underproduction of antidiuretic hormone (ADH) or a mutation in the ADH receptor results in diabetes insipidus. If the posterior pituitary does not release enough ADH, water cannot be retained by the kidneys and is lost as urine, leading to polyuria (frequent urination). The increased frequency of urination causes increased thirst (polydipsia) because water intake cannot adequately compensate for the water lost through urine. In severe cases, polyuria and dehydration can lead to electrolyte imbalances.