Answer :

Reduced food intake this long after surgery may indicate the animals are in pain and distress. This statement is true about a reduced food intake in rodents 5 days after a vascular cannulation surgery.

Intravenous cannulation is the process of inserting a small plastic tube (a cannula) into a peripheral vein. The resulting venous access can be used to administer fluids, medication, and nutrition. Blood samples can be obtained from the cannula in some cases.

During cardiac surgery, a cardiac cannula is a tube inserted into a vein or artery. A venous cannula is used to administer or remove fluids, whereas an arterial cannula is used to secure access to an artery for purposes such as blood sampling or blood pressure monitoring. It is an invasive method for measuring blood pressure and mean arterial pressure that is more accurate than non-invasive methods.

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