A kidney ultrasound is a non-invasive medical imaging test that utilizes sound waves to generate pictures of your kidneys. This procedure helps healthcare providers assess the size, shape, and location of these organs. It can also assist in detecting abnormalities such as cysts, kidney stones, or other structural issues. Proper preparation for this scan helps ensure clear images and accurate diagnostic results.
Preparing Before Your Appointment
Specific preparation instructions for a kidney ultrasound can vary, so it is important to follow the guidance provided by your healthcare provider or the imaging center. You may be asked to fast for 6 to 8 hours before the scan, especially if other abdominal organs are being examined. This fasting helps reduce gas in the bowel, which can obstruct the view of the kidneys. If your appointment is in the afternoon, you might be instructed to skip lunch but can have breakfast.
Hydration guidelines are often provided, particularly if your bladder needs to be full for certain views. You might be asked to drink 24 to 40 ounces of water approximately one hour before your scheduled appointment. It is generally advised not to empty your bladder until after the scan if a full bladder is required.
Discuss all current prescriptions and over-the-counter drugs with your doctor or the imaging facility in advance. In many cases, you can continue to take your medications with a small sip of water. Wearing loose-fitting, comfortable clothing is recommended, as you may be asked to change into a gown for the procedure.
What to Do on the Day
On the day of your kidney ultrasound, plan to arrive at the imaging facility 10 to 20 minutes before your scheduled appointment. This allows time for check-in, paperwork, and any last-minute questions. Bring a photo identification, your insurance card, the doctor’s referral or prescription, and a list of any current medications.
Upon arrival, reconfirm any specific instructions with the staff, particularly regarding your bladder status. If you have anxieties about the procedure or specific needs, informing the sonographer or staff can help ensure a more comfortable experience.
What to Expect During the Scan
During a kidney ultrasound, you will be asked to lie on your back on an examination table. The sonographer, a trained medical professional, may ask you to shift positions or turn onto your side to obtain clearer images. A gel will be applied to your skin over the kidney area. This gel helps the transducer, a small handheld device, glide smoothly and ensures optimal transmission of sound waves.
The sonographer will move the transducer over the gelled area, applying mild pressure to capture images. You might be asked to hold your breath briefly to improve image clarity. The procedure is non-invasive and does not cause pain, though you may feel light pressure from the transducer or the coolness of the gel. A kidney ultrasound takes 30 to 60 minutes.
Receiving Your Results
After your kidney ultrasound is completed, the images will be analyzed by a radiologist. This is a doctor who specializes in interpreting medical images like ultrasounds. The radiologist will prepare a report of their findings.
The results are sent to your referring doctor within 1 to 2 business days. Your doctor will communicate these findings to you, often during a follow-up appointment or phone call. Some facilities may offer access to results through online patient portals.
Schedule a follow-up appointment with your referring doctor to discuss the ultrasound findings and determine any next steps. The results may indicate normal findings, or they might suggest the need for further diagnostic tests or specific treatments.