The cannula is removed before you leave the department. You may also need to visit the toilet more often to empty your bladder.
The test itself will take approximately 30 to 60 minutes.
The frusemide will help your kidneys to work harder, so your bladder will fill faster.
At the end of the scan you may be asked to go to the toilet and empty your bladder, then return for a further 2 minutes of imaging. If a dose of a diuretic (frusemide) is given to cause an increased flow of urine, you may feel thirsty and need to drink plenty of fluids for the rest of the day so that your body does not dry out and you become dehydrated.
At some point between now and week 10, if you are in an at risk group, you will have a blood test for Sickle Cell and Thalassaemia disorders (external link).
Sickle Cell disease is a lifelong hereditary condition which causes health complications and Thalassaemia is a genetic disease which causes mild anaemia in children and adults.
For more detailed information (see radiation risk of medical imaging for adults and children).Browse our pregnancy timeline to find out what screenings tests you will be offered, and what stage of development you and your baby may be at.Just enter how many weeks pregnant you think you are, and press go!The fluid is collected in the kidneys and discharged through the ureters which join the kidneys to the bladder.The top of the ureter is called the renal pelvis and this joins the kidney to the ureters.The descriptions and explanations below for a DTPA renal scan apply also to a MAG3 renal scan.