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DNA Labs India

Stone Analysis with Picture Test

DNA Labs India | ISO 9001:2015 Certified

Stone Analysis with Picture Test

Short Name: Stone Analysis with Picture

Also known as: Kidney Stone Analysis, Urinary Stone Analysis, Renal Calculus Analysis, Stone FTIR Analysis with Photograph

Stone Analysis with Picture Test test available at DNA Labs India for ₹1,229. Uses FTIR (Fourier Transform Infrared Spectroscopy), Digital Photography on Stone (s) samples. Results in Samples received Monday to Saturday before 9 am are reported by the next day.. Free home collection in 300+ cities across India.

Stone AnalysisAll Ages🏠 Home Collection

🩺 Medically Reviewed By

Overview

The purpose of this test is to identify the chemical composition of a urinary or kidney stone so that clinicians can determine underlying metabolic risk factors, choose the correct treatment strategy, and recommend effective preventive measures.

Test Code
3674
CPT Code
82318
ICD Code
N20.0
Price
₹1,229
Sample Type
Stone (s)
Result Time
Samples received Monday to Saturday before 9 am are reported by the next day.
Fasting Required
No
Method
FTIR (Fourier Transform Infrared Spectroscopy), Digital Photography
Step 1

Sample Collection

No special preparation required. Collect the stone in a clean, dry, screw-capped container.

Method: Patient collects passed stone in the provided container; surgically retrieved stone may also be sent for analysis.

Step 2

Laboratory Analysis

Pass urine through a strainer or collect the stone directly into a clean container. Do not mix toilet paper or tissue with the sample.

Step 3

Report Delivery

Close the container tightly and label it. Keep it at room temperature or refrigerate until transport to the laboratory.

Timeline: Samples received Monday to Saturday before 9 am are reported by the next day.

Patient Instructions

1
Before the Test:No fasting or dietary changes required. The only requirement is a collected stone sample in a clean container.
2
During the Test:During the test you will submit the stone sample. The laboratory then performs FTIR spectroscopy and takes a digital photograph.
3
After the Test:No recovery time needed. You can resume all normal activities immediately.

About This Test

Who Should Get This Test

The purpose of this test is to identify the chemical composition of a urinary or kidney stone so that clinicians can determine underlying metabolic risk factors, choose the correct treatment strategy, and recommend effective preventive measures.

How to Prepare

  • Collect the stone exactly as advised by your doctor.
  • Use a clean, dry, screw-capped container.
  • Do not mix urine, tissue, or toilet paper with the stone.
  • Label the container with patient name and collection date.
  • If the stone was passed during urination, drain urine through a strainer to catch it.
  • Transport the sample at room temperature or refrigerated.

Doctor's Notes

Reviewed by — MBBS, MD (Biochemistry) · Reg. No. 21504

"In recurrent stone formers, stone composition is one of the most clinically useful clues for deciding whether the priority is dietary modification, hydration, medication, or a detailed metabolic workup."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeStone (s)
Sample VolumeA single stone or available stone fragments
ContainerClean screw-capped container
Collection MethodPatient collects passed stone in the provided container; surgically retrieved stone may also be sent for analysis.

Sample Stability

Room Temperature: Indefinite
Refrigerated: Indefinite
Frozen: Not recommended
Sample Rejection Criteria:
  • Sample received in a formalin or chemical-containing container
  • Sample mixed with faecal material or other tissue
  • Insufficient stone material for FTIR analysis
  • Unlabelled sample or incomplete patient details

Understanding Your Results

The analysis report lists the crystalline components identified in the submitted stone. Results should be interpreted by a doctor in the context of the patient's medical history and metabolic profile.
Calcium oxalate stones are common and may be associated with high urinary calcium or oxalate.
Calcium phosphate stones may be associated with renal tubular acidosis or hypercalciuria.
Uric acid stones commonly occur in persistently acidic urine, gout, or high purine intake.
Struvite stones suggest a history of urinary tract infection with urease-producing bacteria.
Cystine stones indicate cystinuria, a genetic transport disorder that requires metabolic evaluation.
⚠️ When to Consult a Doctor:

Seek urgent medical care if you have high fever, uncontrollable pain, vomiting, or inability to pass urine. Discuss the stone analysis report with your nephrologist or urologist for a complete prevention plan.

Limitations

  • A single stone analysis may not reflect all metabolic abnormalities; further workup may be needed
  • Very small stones may not provide sufficient material for full FTIR analysis
  • FTIR identifies mineral composition but does not by itself diagnose the underlying cause of stone formation

Risks & Considerations

  • No significant physical risk is associated with submitting a stone sample.
  • If the stone has not yet passed, medical consultation is required for symptomatic management and further imaging.

Interfering Factors

  • Contamination with urine crystals, blood or toilet paper
  • Inadequate sample quantity
  • Storing stone in formalin or other preservatives
  • Mixing multiple stones from different patients or episodes

Frequently Asked Questions

What is the Stone Analysis with Picture test?
It is a diagnostic test that uses FTIR spectroscopy and digital photography to identify the mineral composition of a kidney stone.
Why is stone analysis important after passing a kidney stone?
Knowing the stone's composition helps your doctor determine possible causes and plan treatment to reduce the risk of recurrence.
How is the stone sample collected?
You can pass the stone into a clean container or your doctor may retrieve it during a procedure. Submit it in a clean screw-capped container.
Do I need to fast before the test?
No, no special preparation such as fasting is required.
What does FTIR mean?
FTIR stands for Fourier Transform Infrared Spectroscopy, an accurate method used to identify the molecular composition of the stone.
Can this test detect all types of kidney stones?
FTIR analysis can detect common stone types such as calcium oxalate, uric acid, struvite, calcium phosphate and cystine.
How long does it take to get reports?
Samples received by 9 am Monday through Saturday are usually reported by the next day.
Is the test painful?
No, the test itself is painless because you are only submitting a stone sample.
What is the cost of the Stone Analysis with Picture test?
The test costs Rs 1228.5 at DNA Labs India.
Why is a picture of the stone included?
The digital photograph supports documentation, helps in patient education, and helps the physician correlate the physical appearance with chemical composition.
What preparation is required before the test?
No preparation is needed. Keep the collected stone in a clean, dry, screw-capped container and send it to the laboratory at room temperature or refrigerated.
Can this test help prevent future kidney stones?
Yes, by identifying the exact stone type, your doctor can give targeted dietary and medical advice to prevent recurrence.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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Your Data Privacy

Your medical data is protected under Indian law.

Stored in India: All patient records are stored on servers located in India. No data is transferred outside the country.

DPDP Act Compliant: Under the Digital Personal Data Protection Act 2023, you can request deletion of your records at any time by contacting support.

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