Overview

Renal Function Tests (Imaging and urine tests) enable understanding kidney function. In the area of Onco-Urology, it is essential because several cancers—urologic ones, kidney cancer, bladder cancer, or even advanced prostate cancer—may directly affect kidney function. Furthermore, chemotherapy and targeted therapy for the treatment of cancers, and some contrast agents used in imaging, can put stress on the kidneys. Therefore, monitoring renal function to detect impairment at the earliest possible stages is essential, as this could complicate treatment and management.

Why is it necessary in Urologic Cancers?

Consent Acquisition: To define renal function status before commencing cancer therapies.
Treatment Planning: Aids oncologists define drug doses—especially nephrotoxic chemotherapy drugs.
Monitoring During Therapy: Identifying possible toxicities due to the treatment or tumor-induced obstructions.
Follow-Up: Evaluates renal status after surgery, radiation, or systemic therapy.

Types of Test

The renal function test is not a solitary test but comprises a battery of various measurements, including:-

Serum Creatinine: A measure of clearance of a waste product.
Blood Urea Nitrogen (BUN): It evaluates the waste clearance of nitrogen.
Estimated Glomerular Filtration Rate (eGFR): An overall index of renal function.
Urinalysis: To detect protein, blood, or other abnormal cells in the urine.
Electrolyte Panel (Na⁺, K⁺, Cl⁻, and HCO₃⁻): Harbors imbalances due to renal dysfunction.
Creatinine Clearance Test: Evaluates how well the kidneys filter by comparing urine creatinine to blood creatinine.

Before the Test

There is usually no special preparation,
However, the patient may be requested to drink.
Fasting or 24 hours of urine collection may be necessary on rare occasions.
Make sure to tell the physician about any medications, especially nephrotoxic ones.

How the Test Will Happen

Minimal blood sampling from a vein.
Urine samples may be obtained as a spot or via a 24-hour collection.
Very simple, relaxed, and safe.

Benefits & Risks

Benefits

Renal impairment is detected early.
Healthcare experts make safe decisions regarding oncologic treatment.
Non-invasive, cost-effective.

Risks

Little discomfort at the site of blood puncture.
Very rarely do you get infected or bruised at the needle entry.
No significant risks are associated with urine collection.

After the Test

Results are usually out in 24-48 hours.
If abnormalities are detected, further tests may or may not include imaging and/or biopsy.
The possibility of changing the treatment plan for kidney health based on results.

FAQ's on Renal Function Test

Does the Renal Function Test hurt?

It may involve mild discomfort from the blood draw, while the urine collection is painless.

How often should RFTs be repeated in patients with cancer?

It varies with the treatment schedule. Some patients may need the test done before every cycle of chemotherapy. In contrast, others may need it only during follow-up.

What does an abnormal result mean?

Abnormal results may indicate impaired kidney function due to cancer, obstruction, or side effects occurring from treatment. Further tests will help clarify the cause of the impairment.

Is it all right to eat or drink before the test?

Doctors usually do not restrict regular eating and drinking; however, depending on the specific test ordered, cautionary advice may become necessary.

Do medications interfere with the test results?

Yes. Certain drugs, such as chemotherapy, diuretics, or antibiotics, may directly affect kidney parameters. Always inform your doctor about any medications you are currently taking.

Why choose Tender Palm Super-Speciality Hospital for Renal Function Test in Lucknow, India?

Tender Palm Super-Speciality Hospital is one of the best hospitals for Renal Function Test in Lucknow, India. Our experienced uro-oncologists use advanced tools to give accurate results, quick diagnosis, and better long-term care. We offer the best evaluation and treatment support with effective and affordable pricing, making the Renal Function Test cost suitable for patients seeking high-quality urology care in Lucknow, India.