When you’re considering preimplantation genetic testing (PGT) in Thailand, the quality of the laboratory that analyzes your embryos can influence the reliability of your results. But how can you tell if a lab is trustworthy? This guide provides a practical checklist of questions to ask about PGT lab quality, covering accreditation, experience, and sample handling. Use these questions during clinic consultations to make a more informed comparison.
At a Glance: Key Questions to Ask
- What accreditations does the lab hold?
- How many PGT cycles does the lab process annually?
- How are embryo biopsies and samples handled and transported?
- What is the lab’s experience with the specific type of PGT you need?
- How does the lab ensure quality control and avoid errors?
Why Lab Quality Matters in PGT
PGT involves removing a few cells from an embryo (biopsy) and analyzing their DNA to screen for chromosomal abnormalities (PGT-A) or specific genetic conditions (PGT-M, PGT-SR). The accuracy of these results depends on the laboratory’s technical skill, equipment, and protocols. A high-quality lab can minimize risks like sample contamination, misdiagnosis, or embryo damage during biopsy. While no lab can guarantee a successful pregnancy or a healthy child, choosing a lab with robust quality standards may reduce the chance of errors.
Accreditation and Certification
Accreditation shows that a lab meets recognized standards for quality and competence. In Thailand, look for labs that are accredited by international bodies, such as the College of American Pathologists (CAP) or the Joint Commission International (JCI), or that follow ISO standards. Ask the clinic:
- Which accreditation bodies have certified the lab?
- When was the last inspection, and what were the results?
- Is the lab licensed by the Thai Ministry of Public Health?
Accreditation is not a guarantee of perfect results, but it indicates a commitment to external oversight.
Experience and Volume
A lab that handles many PGT cases may have more refined protocols and troubleshooting experience. Ask about the lab’s annual volume of PGT cycles and how long it has been performing genetic testing. Also, ask about the experience of the embryologists and geneticists:
- How many PGT cycles does the lab process each year?
- How many years has the lab been performing PGT?
- What is the experience level of the team that will handle your samples?
While higher volume can be reassuring, it’s not the only factor. A smaller lab with specialized expertise may also provide excellent care.
Sample Handling and Transport
If your embryos are biopsied at one clinic and sent to a separate lab for analysis, sample handling is critical. Poor transport conditions can damage samples or lead to mix-ups. Ask about:
- How are biopsy samples collected and prepared for transport?
- What measures are in place to prevent sample mix-ups (e.g., barcoding, double-checking)?
- How are samples shipped to the lab, and what is the typical transit time?
- Are samples tracked with a chain of custody?
Clear protocols for labeling and tracking can reduce the risk of errors.
Quality Control and Error Prevention
Labs should have internal quality control measures to ensure accurate results. Ask about:
- How does the lab prevent contamination during analysis?
- What controls are used to validate test results?
- How are results reviewed and confirmed before being reported?
- What is the lab’s policy for handling inconclusive or ambiguous results?
Some labs may offer additional confirmatory testing if results are unclear. Understanding these policies can help you feel more confident in the results.
Specific PGT Types
Different types of PGT require different technical expertise. For example, PGT-M for a single-gene disorder may require a custom test development, while PGT-SR for chromosomal rearrangements needs specialized analysis. Ask the lab about its experience with the specific type of PGT you need:
- How many cases of this specific PGT type has the lab processed?
- Does the lab have experience with your particular genetic condition?
- How does the lab handle cases that require a custom test?
If you need PGT-M, ask about the turnaround time for developing a custom probe, as this can affect your treatment timeline.
Communication and Reporting
Clear communication about results is essential. Ask how the lab reports results and whether you will have a chance to discuss them with a genetic counselor:
- How long does it take to receive results?
- Will you receive a detailed report explaining the findings?
- Is genetic counseling available to help interpret results?
Understanding the results can be complex, so having access to professional guidance is valuable.
Next Steps: Your Checklist
Before you choose a PGT lab in Thailand, use this checklist to guide your conversations:
- Confirm the lab’s accreditation and licensing.
- Ask about the lab’s experience and annual volume.
- Inquire about sample handling and transport protocols.
- Discuss quality control measures and error prevention.
- Ask about experience with your specific PGT type.
- Clarify how results are communicated and if counseling is offered.
Remember, lab quality is just one factor in your overall treatment. Discuss your options with your fertility specialist and ask for transparency about the lab’s processes. For more information, explore our hospitals page, learn about PGT in Thailand, read our guides, or check the FAQ.
Frequently asked questions
What is the most important accreditation for a PGT lab in Thailand?
International accreditations like CAP or JCI are often considered strong indicators of quality, but local licensing by the Thai Ministry of Public Health is also essential. Ask the clinic which accreditations they hold and what they mean for their quality standards.
How can I verify a lab's experience with PGT?
Ask the clinic for the lab's annual PGT cycle volume and how many years they have been performing genetic testing. You can also ask about the experience of the embryologists and geneticists who will handle your samples.
What should I do if I'm concerned about sample mix-ups?
Ask the lab about their labeling and tracking protocols, such as barcoding and chain of custody. A reputable lab will have clear procedures to minimize the risk of errors.
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Medical information notice: This article is educational and does not replace individual assessment, diagnosis, genetic counselling or treatment advice from a licensed clinician. Provider services, availability, fees and policies should be verified directly before booking.