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DNA Labs India

Galactose-1-Phosphate Quantitative Blood Test

DNA Labs India | ISO 9001:2015 Certified

Galactose-1-Phosphate Quantitative Blood Test

Short Name: Galactose-1-P Quantitative

Also known as: Galactose-1-P Blood Test, Gal-1-P Quantitative Test, Galactosemia Screening Test

Galactose-1-Phosphate Quantitative Blood Test test available at DNA Labs India for ₹1,989. Uses Fluorometry on Whole Blood samples. Results in Reports are typically available within 5 days after sample collection.. Free home collection in 300+ cities across India.

Blood Test🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr SHAILAJA RAGHUNATH MURDESHWAR

Dr SHAILAJA RAGHUNATH MURDESHWAR

Consultant Physician · Reg: 8052

Last reviewed: September 7, 2026

Overview

This test is useful for monitoring dietary therapy for Classic Galactosemia, Galactosemia-Duarte variant and patients with UDP-galactose-4-epimerase deficiency.

Test Code
635
Price
₹1,989
Sample Type
Whole Blood
Result Time
Reports are typically available within 5 days after sample collection.
Fasting Required
No
Method
Fluorometry
Step 1

Sample Collection

Clinical and drug history must be provided to the healthcare provider.

Method: Venipuncture

Step 2

Laboratory Analysis

Sample must be immersed in ice water immediately after collection.

Step 3

Report Delivery

Ship the sample refrigerated. Do not freeze.

Timeline: Reports are typically available within 5 days after sample collection.

Patient Instructions

1
Before the Test:Provide clinical and drug history. No fasting required unless specified by doctor.
2
During the Test:A blood sample will be drawn from a vein, and the specimen will be immediately immersed in ice water.
3
After the Test:The sample will be shipped refrigerated to the lab. Resume normal activities unless advised otherwise.

About This Test

Who Should Get This Test

This test is useful for monitoring dietary therapy for Classic Galactosemia, Galactosemia-Duarte variant and patients with UDP-galactose-4-epimerase deficiency.

How to Prepare

  • Collect 4 mL whole blood in a Sodium Heparin (Green Top) tube
  • Immerse specimen in ice water immediately after collection
  • Ship refrigerated, do not freeze

Doctor's Notes

Reviewed by — MBBS, MD (General Medicine) · Reg. No. 8052

"Early diagnosis of galactosemia is crucial for managing symptoms and preventing serious complications like liver damage and developmental delays."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeWhole Blood
Sample Volume4 mL (2 mL min.)
ContainerGreen Top (Sodium Heparin) tube
Collection MethodVenipuncture

Sample Stability

Refrigerator: 48 hours
Sample Rejection Criteria:
  • Improper sample collection or handling
  • Frozen samples
  • Insufficient blood volume

Understanding Your Results

Results are interpreted based on the level of galactose-1-phosphate in the blood, with elevated levels indicating potential galactosemia or related metabolic disorders.
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Normal

Low levels of galactose-1-phosphate suggest no significant impairment in galactose metabolism.

📊

Elevated

High levels may indicate galactosemia or other inborn errors of metabolism, requiring further diagnostic tests.

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Very High

Significantly elevated levels are often associated with classic galactosemia, necessitating immediate medical intervention.

⚠️ When to Consult a Doctor:

Consult a doctor if symptoms of galactosemia are present, such as jaundice or poor feeding in infants, or if test results are abnormal.

Limitations

  • ⚠May not detect all mild variants of galactosemia
  • ⚠Requires timely sample processing and refrigeration

Risks & Considerations

  • ●Bruising at the blood draw site
  • ●Minor infection risk
  • ●Slight pain or discomfort

Interfering Factors

  • ●Certain medications
  • ●Improper sample handling
  • ●Dietary intake of galactose before testing

Compare With Similar Tests

TestGalactose-1-Phosphate Quantitative Blood TestGalactosemia Newborn ScreeningGalactose-1-Phosphate Uridyltransferase Activity TestGenetic Testing for GALT GeneLactose Tolerance Test
ComparisonGalactose-1-Phosphate Quantitative Blood Test

Frequently Asked Questions

What is the Galactose-1-Phosphate Quantitative Blood Test?
It is a blood test that measures the level of galactose-1-phosphate, a compound involved in galactose metabolism, used to diagnose and monitor galactosemia.
Why is the Galactose-1-Phosphate test performed?
The test is performed to diagnose galactosemia, a genetic disorder that affects the body's ability to metabolize galactose, and to monitor dietary therapy in known patients.
What are the symptoms of galactosemia?
Symptoms in infants include jaundice, poor feeding, vomiting, lethargy, and seizures; in older individuals, cataracts, enlarged liver, delayed speech, and developmental delays may be observed.
How is the test sample collected?
A blood sample is drawn from a vein into a Sodium Heparin tube, immersed in ice water immediately, and shipped refrigerated to the laboratory for analysis.
What is the normal range for Galactose-1-Phosphate levels?
Normal levels are typically less than 3.0 mg/dL, but reference ranges may vary by laboratory. Elevated levels indicate potential galactosemia or impaired galactose metabolism.
How long does it take to get the test results?
Results are usually available within 5 days after sample collection, with reports delivered via online portal, email, or WhatsApp for your convenience.
Is fasting required before the test?
No, fasting is not required for this test. However, providing your complete clinical and drug history is essential before sample collection.
Can the test be done at home?
Yes, DNA Labs India offers free home sample collection for this test across many cities in India. You can easily book your slot online through our website.
What does an elevated Galactose-1-Phosphate level indicate?
Elevated levels suggest galactosemia or impaired galactose metabolism, requiring further diagnostic tests such as enzyme activity assays or genetic testing for confirmation.
How is galactosemia treated?
Treatment primarily involves a strict galactose-free diet, which helps manage symptoms and prevent complications like liver damage and intellectual disability when started early.
Is the test covered by insurance?
Coverage varies by insurance scheme and provider; it is recommended to check with your insurer directly. DNA Labs India offers affordable pricing at INR 1989.
What other tests are used to diagnose galactosemia?
Other tests include galactosemia newborn screening, galactose-1-phosphate uridyltransferase enzyme activity tests, genetic testing for GALT gene mutations, and lactose tolerance tests.
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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For Hospitals & Clinics

Reference Laboratory Services

We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.

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