What is a DMSA Renal Scan?

A renal DMSA scan is a diagnostic scan recommended for patients who have kidney problems like urinary tract infections or kidney malformation. 

 

Preparing for the scan:

  • Wear comfortable clothing and avoid jewellery on the day of the scan
  • No preparation is necessary if sedation is not required for the performance of the study.
  • Sedation may have to be administered for the uncooperative patients for which fasting may be required.

 

What to bring on the day of the scan:

  • Doctor’s prescription or note indicating the type of scan to be done
  • Entire current medical file and prescription set to be aware of  any medical conditions and allergies, including details of treatment history.
  • All relevant previous reports, CD and scan images (CT abdomen/Pelvis reports, MCU and UTI reports)
  • Previous DMSA scans details and reports are required
  • Only one accompanying person is recommended
  • Home-cooked food for the patient to eat after the scan

 

Time taken:

  • Total time: 3-4 hrs
  • Waiting time after injection: 3 hrs
  • Scan duration: 20 – 25 mins

 

How is DMSA Renal scan done?
A DMSA Renal scan uses a radioactive material (tracer) to produce 2D and 3D images of organs and areas within the body. The changes that take place are recorded in a sequential manner. The process you will follow when you go for a DMSA Renal scan is as follows:
  • When you enter, registration is done and you need to share all your required medical history. The procedure will be explained to you and you may clear all your queries. 
  • After completing all the queries, your Patient Care Coordinator will explain the procedure of the scan  to parents and all children old enough to understand. 
  • Children should be reassured by their parents in every step by continuous communication, as their cooperation is necessary for a successful scan
  • The nurse then places a cannula in your vein to prepare for the radiotracer injection 99rnTc-DMSA . The radiotracer is pushed in the vein through the cannula. Radiotracer helps determine the problem by highlighting the scanned area. The amount of dose given and the timing is noted. 
  • There is a waiting period for 3 hours after injection for the radiotracer to get absorbed to the essential areas for the scan.
  • After the waiting period,the patient will be taken inside the gamma scan room to lie on the bed which will be moved into the machine for the scan. You will be monitored through a CCTV / glass screen. 
  • Emission from the tracer is detected by the scanner and high quality images are produced by the machine. Imaging generally takes around 25-30 minutes. Various nuclear scans have different waiting periods.
  • After the scan you will be kept under observation in case any delayed scan is required after the initial scan is reviewed by a Nuclear Medicine physician.
  • After receiving a clearance from the reviewing Nuclear Medicine physician you will be advised to leave with some safety instructions.
  • You will be advised to stay away from other children and pregnant women for 24 hours and to drink lots of water/fluid after the scan to flush out the radiotracer through urine

 

After the scan:

  • Patients can eat, drink and take medication.
  • Patient is required to wait in the clinic for approximately half an hour after the scan, till the concerned staff confirms. 
  • It is best for the patient to not be close to children or pregnant women for the rest of the day to avoid exposing them to any radiation. 
  • The radiotracer leaves the patient’s body through urine or stool till 10-12 hours after the scan. Patient should drink a lot of water to help flush it out.
For appointment call 8869906990 or write at contact@medcarediagnostics.com atleast 1 or 2 days prior to the required date of appointment.
(We may consider taking in walk-in patients if another scheduled patient has cancelled. So do check in with our reception and our billing executives at our centre)

 

Important Note:

  • We may have to cancel and reschedule your appointments at times because of reasons beyond our control – short-supply or no supply of the isotope (Tc99m) used for the scan, machine breakdowns, etc.
  • As we have no control over this situation, Medcare Diagnostics would not be held liable for any harm or loss arising out of such cancellations