What tests need to be monitored when someone is on, total parenteral nutrition?

Well, . Glucose should be monitored several times a day until stable, and then at least daily. Intake and output as well as weight should also be monitored daily. Lab tests that are monitored daily when TPN is initiated are cbc, plasma urea, electrolytes including magnesium and phosp, and calcium. Liver function tests, plasma proteins, prothrombin time, plasma and urine osmolality also should be measured.
See below. Electrolytes, such as sodium, potassium, chloride, calcium, phosphorus and liver function tests as well. Blood may be tested to see if cholesterol and triglycerides are too high, in which case the amount of fat may need t0 be reduced.