Final answer:
Vasopressin is effective in treating diabetes insipidus. It helps the kidneys retain water, reducing urinary output and alleviating symptoms such as polyuria and increased thirst. Observations that indicate the effectiveness of the medication include reduced urinary output, weight loss, concentrated urine, and complaints of thirst.
Step-by-step explanation:
Vasopressin, also known as antidiuretic hormone (ADH), is prescribed to treat diabetes insipidus. Diabetes insipidus is characterized by increased excretion of dilute urine, resulting in polyuria and increased thirst. ADH helps the kidneys retain water, reducing urinary output and alleviating symptoms. In this case, the effectiveness of the medication can be observed through the following:
- The client's 24-hour urinary output is reduced to 5000ml (from the usual 6 to 20 liters in diabetes insipidus).
- The client's weight decreases by 4 pounds in a week, suggesting less water loss.
- The client's specific gravity is 1.015, which is within the normal range (1.003-1.030) and indicates concentrated urine.
- The client complains of thirst, which could be attributed to the reduced urinary output and increased water retention.