Test Price
750 AED✅ Home Collection Available
FISH Postnatal Gender Confirmation Test in Dubai | DNA Labs UAE (DHA 1143)
Executive Summary & Core Metrics
- Accuracy Guarantee: 99.9% Diagnostic Sensitivity via ISO 9001:2015 Accredited Processing.
- Premium Logistics: Paid Hospital-Grade Home Collection via ISO Certified Cold-Chain and VIP Mobile Phlebotomy (Available daily from 8 AM to 11 PM).
- Clinical Guidance: Post-Test Telephonic Consultation for comprehensive result interpretation.
- Insurance: Direct Billing Verification via WhatsApp +971 54 548 8731.
Test Overview & Methodology
The FISH Postnatal Gender Confirmation Test utilizes fluorescently labeled DNA probes targeting the X and Y chromosome centromeres to rapidly determine the copy number of sex chromosomes in a peripheral blood sample. This targeted molecular cytogenetic technique provides a definitive result regarding the presence of X and Y chromosomes, delivering a precise gender profile within 4 business days. The assay is clinically validated for the rapid evaluation of newborns and infants presenting with ambiguous genitalia, suspected sex chromosome aneuploidy, or discordant prenatal genetic screening results, offering a significantly faster turnaround time than conventional karyotyping.
| Parameter | Our Test (FISH Postnatal Gender Confirmation) | Closest Alternative (Karyotype) |
|---|---|---|
| Precision | 99.9% sensitivity for sex chromosome aneuploidy detection | High resolution for whole genome, but lower sensitivity for low-level mosaicism |
| Methodology | Fluorescence In-Situ Hybridization (FISH) – Targeted, rapid interphase analysis | G-banded chromosome analysis – Whole genome, requires metaphase cells |
| Turnaround Time | 4 Business Days | 10–14 Business Days |
| Sample Type | 5 mL Whole Blood (Green Top, Sodium Heparin) | 5 mL Whole Blood (Green Top, Sodium Heparin) |
Physician Insight & Safety Protocols
"The FISH postnatal gender confirmation test provides rapid and highly accurate detection of sex chromosome copy number variations, serving as a critical first-line cytogenetic tool in the workup of infants with ambiguous genitalia or suspected sex chromosome disorders such as Turner or Klinefelter syndromes. It is imperative that the FISH result is correlated with the full clinical phenotype, hormonal assays, and a comprehensive genetic workup to guide definitive management and family counseling." – Lina Osama Zaki Quteineh, Consultant Medical Genetics (DHA Registration ID: 9294403)
Pre-Test Advisory & Preparation Guidelines
- Consent & Formalities: A fully completed and signed Chromosome & FISH Analysis Requisition Form (Form 17) must accompany the biological sample. Parental or guardian consent is mandatory for all postnatal pediatric testing.
- Sample Integrity: Specimens must be a minimum of 3 mL (optimal 5 mL) of peripheral whole blood collected in a Green Top (Sodium Heparin) tube. Samples must be shipped and maintained at a controlled ambient temperature of 18–22°C. DO NOT FREEZE or refrigerate the sample.
- Home Collection Protocol: Our certified phlebotomists conduct the blood draw strictly under ISO 9001:2015 cold-chain logistics protocols. The VIP Mobile Phlebotomy service is available daily from 8 AM to 11 PM.
- Post-Test Guidance: A telephonic consultation with a clinical geneticist is available upon issuance of the final report to discuss clinical implications and recommend any necessary follow-up investigations.
Exclusion Criteria & Clinical Contraindications
- Transfusion Confound: Patients who have received an allogeneic blood transfusion within the preceding 21 days are not suitable for this test, as donor-derived leukocytes may lead to inaccurate results.
- Emergency Red Flags: An infant presenting with ambiguous genitalia accompanied by vomiting, severe dehydration, or shock requires immediate emergency medical evaluation for potential salt-wasting congenital adrenal hyperplasia (CAH). Do not await FISH test results in this acute clinical setting.
- Prenatal Samples: This assay is validated exclusively for postnatal blood specimens. It is not validated for amniotic fluid, chorionic villus sampling, or other prenatal matrices.
- Diagnostic Limitation: The FISH test does not detect structural chromosome rearrangements, imprinted gene disorders, or single-gene variants. A normal FISH result does not replace the need for a complete chromosomal karyotype or chromosomal microarray when clinically indicated.
Patient FAQ & Clinical Guidance
1. What is a postnatal gender confirmation FISH test and when is it clinically necessary?
This test uses fluorescent DNA probes to rapidly count the number of X and Y chromosomes in a blood sample. It is clinically necessary for newborns and infants where the physical sex characteristics are unclear (ambiguous genitalia), there is a suspected discrepancy between genetic sex and external appearance, or there is a clinical suspicion of sex chromosome aneuploidy such as Turner syndrome (45,X) or Klinefelter syndrome (47,XXY).
It provides a rapid genetic result to guide immediate medical management in the neonatal period while a comprehensive karyotype or microarray is being processed. The test is a critical component of the initial diagnostic pathway for disorders of sex development (DSD).
2. How should I prepare my child for the FISH blood draw and what are the associated risks?
No specific fasting, dietary restrictions, or sedation is required for this test. The procedure involves a standard venipuncture (blood draw) of approximately 5 mL from a peripheral vein, which takes a few minutes. The primary risk is limited to minor bruising or transient discomfort at the collection site.
We recommend that the parent or guardian remains with the infant or child during the home collection to ensure comfort. Our certified phlebotomist is trained in pediatric collection and will strictly adhere to ISO-certified cold-chain protocols to maintain sample integrity. Please inform the clinical team if the child has a known bleeding disorder or is receiving anticoagulant therapy.
3. How long does it take to get the FISH test results and is a follow-up consultation included?
The final FISH report is issued within 4 business days of the sample reaching the laboratory. The report includes a detailed description of the fluorescent signal patterns detected for the X and Y chromosomes, the definitive sex chromosome complement (e.g., XY, XX, 45,X, 47,XXY), and an interpretive comment from the clinical geneticist.
Yes, DNA Labs UAE provides a post-test telephonic consultation for all patients and referring physicians. This service is designed to fully explain the clinical significance of the results and to outline recommended next steps, which may include confirmatory testing or specialist referral.
4. What is the difference between this FISH test and a full karyotype?
The FISH test uses targeted probes to look specifically at the X and Y chromosomes and can provide a result in 4 days, even from non-dividing (interphase) cells. It is highly sensitive for detecting whole chromosome gains or losses (aneuploidy) and low-level mosaicism.
A standard karyotype requires cells to be cultured and arrested in metaphase to visualize all 46 chromosomes. This takes 10–14 days and provides a comprehensive view of the entire genome, detecting structural abnormalities (e.g., deletions, duplications, translocations) that FISH cannot identify. The FISH test is often used for rapid initial triage, followed by a karyotype for complete chromosomal analysis.
5. Does insurance cover the FISH Postnatal Gender Confirmation Test at DNA Labs UAE?
DNA Labs UAE works with a wide range of local and international insurance providers. Coverage for genetic and cytogenetic testing varies depending on the specific policy, clinical indication, and insurer's pre-authorization requirements.
Our dedicated billing team can verify your insurance coverage and provide a direct billing estimate. Please contact us via WhatsApp at +971 54 548 8731 with your policy details to initiate a coverage check before the sample collection.
UAE Regulatory & Data Privacy Adherence
Data Protection: DNA Labs UAE strictly complies with Federal Decree-Law No. 45 of 2021 on Personal Data Protection (PDPL) for all collection, processing, and storage of personal health information.
Health Information Governance: All health data management and cybersecurity protocols adhere to Federal Law No. 2 of 2019 Concerning the Use of Information and Communication Technology in Health Fields, ensuring secure electronic health records and digital communications.
Clinical Safety & Patient Consent: All clinical testing services, including sample collection and genetic analysis, operate under the framework of Federal Decree-Law No. 4 of 2016 on Medical Liability, guaranteeing informed patient consent and the highest standards of clinical safety.
Clinical & Logistical Metadata
| Test Name | FISH Postnatal Gender Confirmation Test |
| Price (AED) | 750 |
| Turnaround Time | 4 Business Days (ISO 9001:2015 Accredited) |
| Sample Type / Matrix | Peripheral Whole Blood (5 mL, Green Top / Sodium Heparin) |
| Methodology Used | Fluorescence In-Situ Hybridization (FISH) – X/Y Centromeric Probes |
| ICD-10-CM Code | Z13.79, Q56.4, Q98.8 |
| LOINC Code | 49005-3 |
| DHA Facility License & Laboratory Address | DHA License: 1143 | Premises 105, Floor 1, Building 33, Dubai Healthcare City, Dubai, UAE |
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