Final answer:
The normal range of urine output after surgery is about 0.5 to 1.0 mL/kg/hr, with an approximate range of 50-100 mL/hr being a safe guideline. Urine output is an important indicator for postoperative care. Regarding fluid intake, diuresis usually starts about 30 minutes after drinking a large glass of water.
The correct answer is option a. 50-100 mL/hour
Step-by-step explanation:
The expected normal range of urine output after surgery is typically about 0.5 to 1.0 mL/kg/hr for adults, which translates to roughly 35-70 mL/hr for a 70 kg (154 lbs) individual. However, for the purpose of standard guidelines and answering the multiple-choice question, the closest and safest option would be Option A: 50-100 mL/hr. It is important to note that urine output can be influenced by factors such as overall hydration status, medicines, and the type of surgical procedure. Postoperative patients are closely monitored, and their urine output is an important indicator of kidney function and overall fluid balance after surgery.
As for the question regarding the increase in urine output after drinking a large glass of water, urine production typically begins to increase within 30 minutes after fluid ingestion. Normal daily urine production varies but is generally in the range of 1 to 2 liters, with a minimum of approximately 500 mL needed to eliminate waste effectively. Urine production below this level is clinically significant and termed oliguria.