Amino Acids Quantitative, Spot Urine Test: Booking, Price, and Results
About Amino Acids Quantitative, Spot Urine Test
| Field | Value |
|---|---|
| Also Known As | Urine Amino Acid Profile, Urinary Amino Acids, Aminoaciduria Screen, Urine AA Panel |
| Sample Type | Random spot urine (first morning sample preferred) |
| Fasting Required | No fasting required; first morning urine is preferred |
| Report Time | 5 days |
| Recommended For | All ages; especially neonates, infants, and children with suspected metabolic disorders |
| Price | Starting at ₹6,000 |
What is an Amino Acids Quantitative, Spot Urine Test?
The Amino Acids Quantitative, Spot Urine Test measures the levels of individual amino acids excreted in urine. Amino acids are the building blocks of proteins. When the body cannot process certain amino acids correctly, they build up and spill into the urine. This test is also called the Urine Amino Acid Profile or Aminoaciduria screen. A single urine sample is all that is needed, making it particularly convenient for young children and infants.
What Does an Amino Acids Quantitative, Spot Urine Test Measure?
This test uses a method called LCMS (liquid chromatography–mass spectrometry) to detect and measure over 35 individual amino acids in urine. The following are some key groups tested:
| Group | Examples | Why They Matter |
|---|---|---|
| Essential amino acids | Leucine, isoleucine, valine, phenylalanine, lysine, methionine, threonine, tryptophan | Cannot be made by the body; must come from diet |
| Urea cycle amino acids | Citrulline, ornithine, arginine | Involved in removing ammonia from the body |
| Transport disorder markers | Cystine, lysine | Elevated in conditions such as cystinuria |
| Metabolic disorder markers | Phenylalanine, tyrosine | Raised in PKU and tyrosinaemia, respectively |
| Branched-chain amino acids | Leucine, isoleucine, valine | Elevated in maple syrup urine disease (MSUD) |
Other amino acids measured include glycine, alanine, serine, glutamine, proline, taurine, histidine, argininosuccinic acid, and several others, giving a detailed picture of amino acid metabolism and kidney tubular function.
Why is an Amino Acids Quantitative, Spot Urine Test Done?
This test is ordered when a doctor suspects that the body is not handling amino acids normally. It is used both to diagnose conditions and to track known disorders over time.
Common Symptoms That May Require This Test
A doctor may request this test when a patient presents with any of the following:
- Unexplained failure to thrive or poor growth in infants
- Recurrent vomiting without a clear cause
- Elevated ammonia levels in the blood (hyperammonaemia)
- Neurological decline, seizures, or developmental delays
- Persistent lethargy or low energy
- Metabolic acidosis (a build-up of acid in the body)
- Recurring kidney stones, particularly in younger patients
Conditions This Test Can Help Detect
This test can assist in identifying a range of inherited and acquired conditions, including:
- Phenylketonuria (PKU) — an inherited disorder causing phenylalanine build-up
- Maple syrup urine disease (MSUD) — affecting the breakdown of branched-chain amino acids
- Tyrosinaemia — a disorder involving abnormal tyrosine metabolism
- Cystinuria — a transport defect causing cystine to accumulate in the kidneys and bladder
- Hartnup disease and lysinuric protein intolerance — amino acid transport disorders
- Urea cycle defects, including HHH syndrome
- Renal tubular disorders such as Lowe syndrome and Dent disease
- Liver dysfunction and certain nutritional deficiencies
Amino Acids Quantitative, Spot Urine Test for Chronic Disease Monitoring
This test plays an important role in managing ongoing metabolic conditions. Patients with confirmed disorders such as PKU, MSUD, or cystinuria need periodic testing to check how well their treatment and dietary adjustments are working. It is also used as a follow-up to abnormal newborn screening results, helping confirm or rule out specific inherited metabolic conditions.
How to Prepare and What to Expect
Collecting a urine sample for this test is straightforward. The steps below will help ensure the result is as accurate as possible.
Do You Need to Fast?
No fasting is required for this test. The first morning urine sample is preferred because it is more concentrated and less likely to be affected by recent fluid intake. A random spot sample is also acceptable if a morning sample cannot be collected.
Practical Tips Before Your Test
Keep the following in mind before collecting your sample:
- Collect the first morning urine if possible, as it gives the most reliable results
- Bring a detailed clinical history, including your symptoms, previous test results, and family history, as this is required for the test
- Tell your doctor about all medications, supplements, and vitamins you are taking, since some can affect amino acid levels
- Avoid very dilute urine; drink normally rather than excessively before collection
- Do not allow the sample to be contaminated with faeces, as this can interfere with the analysis
- Keep the sample refrigerated from the time of collection until it reaches the laboratory
Step-by-Step Procedure
Here is what to expect during the sample collection process:
- Wash your hands thoroughly with soap and water before starting.
- Open the sterile white container provided and collect a mid-stream urine sample (allow a small amount to pass first, then collect into the container).
- Seal the container tightly and label it clearly with your name, date, and time of collection.
- Keep the sample refrigerated at 2 to 8°C immediately after collection; do not leave it at room temperature.
- Hand the sample over to the Lupin Diagnostics collection team or take it to the nearest collection centre as instructed.
- The sample is then dispatched to a NABL-accredited laboratory for LCMS analysis.
Factors That Can Affect Accuracy
Certain factors can influence how reliable the results are:
- Very dilute urine (low creatinine concentration) makes results unreliable
- A high-protein meal shortly before collection may temporarily raise some amino acid levels
- Bacterial or faecal contamination of the sample
- Certain medications, drug metabolites, or nutritional supplements
- Improper storage or delays in transport to the laboratory
Understanding Your Amino Acids Quantitative, Spot Urine Test Results
Results from this test are compared against age-specific reference intervals, since amino acid levels in urine change significantly with age. A doctor will review the findings alongside clinical history and other test results.
| Parameter (Example) | Normal Range (Adults, Approx.) | Unit |
|---|---|---|
| Glycine | 60 to 500 | µmol/g creatinine |
| Alanine | 50 to 400 | µmol/g creatinine |
| Cystine | 10 to 100 | µmol/g creatinine |
| Leucine | 5 to 50 | µmol/g creatinine |
| Phenylalanine | 10 to 60 | µmol/g creatinine |
Note: Reference intervals vary by age group, laboratory method, and analyser. Always compare your results with the reference ranges printed on your specific report.
Disclaimer: These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Urinary amino acid levels are naturally more variable than blood (plasma) levels, so some fluctuation is expected. False-negative results can occur in patients with mild or intermittent variants of a metabolic disorder, or when dietary treatment has already partially corrected an abnormal profile. Kidney tubular dysfunction can cause elevated amino acid excretion in urine even when blood levels remain normal, which is why urine and blood tests are sometimes ordered together.
How to Maintain Healthy Levels
These general tips support normal amino acid metabolism:
- Eat a balanced diet with adequate, high-quality protein sources such as legumes, dairy, eggs, and lean meat
- Stay well-hydrated to support kidney function and healthy amino acid excretion
- If you have a diagnosed metabolic disorder, follow the dietary plan recommended by your metabolic dietitian or specialist
Lupin Diagnostics Amino Acids Quantitative, Spot Urine Test Price and Home Collection
The Amino Acids Quantitative, Spot Urine Test is available at Lupin Diagnostics starting at ₹6,000, with home sample collection available across cities in India.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 6000 |
| CHENNAI | 6000 |
| HYDERABAD | 6000 |
| KOLKATA | 6000 |
| NAVI MUMBAI | 6000 |
| PUNE | 6000 |
Disclaimer: Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Select the Amino Acids Quantitative, Spot Urine Test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home urine sample collection for this test across multiple cities in India. A trained collection professional will provide a sterile container and guide you through the process. All samples are processed in NABL-accredited laboratories, and your digital report is delivered directly to you once ready.
Frequently Asked Questions
A spot urine test uses a single sample, usually the first morning void, and results are adjusted for creatinine concentration. A 24-hour collection reflects amino acid output across an entire day and is less affected by circadian variation. Your doctor will advise which type is appropriate based on your clinical situation.
Some disorders, particularly those involving defective kidney transport such as cystinuria, Hartnup disease, and lysinuric protein intolerance, only show abnormal amino acid levels in urine. In these cases, a urine test provides information that a blood test alone cannot.
Elevated phenylalanine may appear in a urine amino acid result, but blood (plasma) amino acid testing is the preferred method for investigating and monitoring PKU. Your doctor may order both tests together for a complete picture.
Keep the sealed, labelled container refrigerated at 2 to 8°C from the time of collection. Amino acids in urine remain stable for up to 72 hours when kept refrigerated. If a longer delay is expected, follow your doctor's or laboratory's specific storage instructions.
Yes. Most amino acid disorders first appear during infancy or early childhood. This test is commonly used to follow up on abnormal newborn screening results and is well-suited to young patients since only a small urine sample is needed.
Yes. Urine amino acids reflect recent dietary intake. A high-protein meal shortly before collection may temporarily raise the levels of certain amino acids. Follow any dietary guidance from your doctor, and try to collect a first morning sample before eating if possible.
At Lupin Diagnostics, the report is typically available within 5 days. This is a specialised test that requires detailed analysis, so the turnaround time is longer than for routine tests. You will receive your report digitally once it is ready.
Amino Acids Quantitative, Spot Urine Test: Booking, Price, and Results
