Extracellular.
Urine production stays the same but the volume of extracellular fluid increases thus, the extracellular osmolarity decreases.
A urinary catheter, usually just called a Catheter. It may be made from rubber, latex or silicone.
Clean Catch or Catheter
The fluid that precedes urine in the nephron is called tubular fluid.
In a successful nephrostomy, the catheter is inserted, and urine drains into the collection bag
Yes. Urine is intravascular fluid. That said the body can crenate cells to create intravascular fluid from intracellular fluid. This usually is short term but common in chronic dehydration. Elevated K+ in a malnourished person is hallmark of cellular dehydration.
Urine production stays the same but the volume of extracellular fluid increases thus, the extracellular osmolarity decreases.
Catheter (Greek: to let down) is a flexible sterile tube inserted into a body cavity to introduce or withdraw fluid. Examples: intravenous catheter - can be used to withdraw blood or infuse medication/fluids. urethral catheter - tube inserted into the bladder to drain urine. cardiac catheter - visualization and treatment of coronary problems. toposcopic catheter - delivers chemotherapy to specific sites.
Catheter urine is more "sanitary" than regular urine. Because it is collected from the bladder, and doesn't "touch" the external skin, it is less prone to skin contamination.
Urinary catheterization is the insertion of a catheter into a patient's bladder. The catheter is used as a conduit to drain urine from the bladder into an attached bag or container.
bladder
Catheter
Urine drainage
A catheter is a tube inserted into the urethra to collect urine from a person's bladder. To insert a Foley catheter, have the patient lie down and, using clean hands inside sterile gloves, apply lubricant to the catheter and insert it into the patient's urethra. Be sure to push the catheter in until urine can be seen within the tube. Connect the tube to a urine collection bag, and then the procedure is complete.
no
Sounds like severe dehydration.
Urine is the catheter tube is "fresher" than urine sitting in the collection bag, often sitting for many hours.