<Tr> <Td_colspan="4"> CSF: </Td> </Tr> <Tr> <Td> CSF alb = 30 </Td> <Td> CSF glu = 60 </Td> <Td> CSF / S alb = 7.5 </Td> <Td> CSF / S glu = 0.4 </Td> </Tr> <P> Typically, the patient fasts for ten or twelve hours before the blood is drawn for the test--this is particularly important for getting a useful blood glucose measurement . CMPs are also frequently performed on nonfasting patients, but the glucose level in those cases is not as useful . The following tests are then performed: </P> <P> These tests help screen for a wide variety of problems . The glucose test in particular helps screen for diabetes mellitus and pre-diabetes . The calcium test can indicate or monitor bone diseases or diseases of the parathyroid gland or kidneys . Calcium salts, lithium, thiazide diuretics, thyroxine, and vitamin D can all increase levels and may interfere with this test . </P>

Do i need to fast for comprehensive metabolic panel blood test