The weight of 800ml of a substance will depend on the density of that substance. For water, which has a density of 1g/ml, 800ml would weigh 800 grams. For other substances, the weight could be different.
If the patient has a urinary problems and for some reason, urination cannot proceed naturally, in a hospital setting, physicians will then proceed to insert a catheter externally, and artificially remove any by-products excreted. This procedure is especially common in patients whom have had surgery and are incapable of urinating themselves. The catheter procedure is also relevant for measuring the amount of drainage after surgery which indicates the recovery rate of the patient.
800mL = 3.4 cups (US)
Yes! This is not a reason they would deny you a license. A reason for that would be mental capacity or criminal record.
2.5 L + 0.8 L = 3.3 L
You hold the urine for some time in urinary bladder. Urinary bladder is situated in your pelvic cavity. The formation of the urine is continuous process. You can not go on urinating continuously. That is why the urinary bladder is there.
The human bladder can typically hold between 400-600 milliliters of urine before the need to urinate arises. However, the actual capacity can vary between individuals.
"Decrease in bladder capacity" is definitely correct and probably the answer they are looking for. I would argue that "decrease in cardiac output" and "decrease in number of nephrons" can also do it by causing edema (fluid retention) when the person is upright which is then excreted at night when the person lies down flat.
800g of water would be 800mL of water, so a liter beaker or graduated cylinder could hold that volume of water.
No the mouse would have the smallest bladder.
you would die!
To urinate, if you mean the urinary bladder. If you mean the swim bladder, it is to be able to change its depth in the water. It has a way to vent air from the gills to the swim bladder, and from the swim bladder to the digestive tract. So the fish would inflate the bladder to be able to rise and deflate the bladder to go lower.