Paternity test

What steps does ADNÀ take to guarantee the quality and purity of the DNA sample?

ADNÀ provides clear, easy-to-follow instructions for sample collection to ensure its purity and quality. Our laboratories apply strict protocols when handling and analyzing your DNA, thus ensuring that your results are both accurate and reliable.

Yes, for relationship tests, our partner laboratory can perform the analysis on non-standard samples such as a toothbrush or blood, for example. The cost is higher, ranging from $750 to $850, and the turnaround time is longer because the laboratory first applies a DNA extraction method tailored to the type of material. Some samples (e.g., hair without roots, old tissues, cigarette butts that are too old) contain very little or degraded DNA.

Here is the exhaustive list of possible sample types and their acceptability criteria:

🔹 Success Rate: 90% or Higher

• Whole Semen: Frozen vial, fresh swab, or semen on fabric.
• Whole Saliva: Tube with preservative preferred.
• Whole Blood: Stored in lavender-topped vacutainer tube.
• Blood/Saliva on Filter Paper: On paper/matrix, less than 60 days old.
• Bone Marrow: Fresh/frozen (not slides/paraffin).
• Mucus/Sputum: Tissue, napkin, or paper towel.
• Toothbrush: Air dry 30 minutes before packaging.

🔹 Success Rate: 60% to 90%

• Blood Stain on Fabric: Bandages, gauze, tissue, napkin, clothing.
• Semen Stain on Fabric: Gauze, tissue, clothing (indicate stain area).
• Saliva Stain on Fabric: Gauze, tissue, clothing (indicate stain area).
• Unknown Stain on Fabric: Biological stain of unknown origin.
• Fingernail/Nail Clippings: 5–10 clippings recommended.
• Diabetic Test Strips: Multiple strips.
• Ear Swab: Cotton swab/Q-tip.
• Umbilical Cord: Preferably dried; reference sample from mother.
• Cigarette Butts: Multiple preferred.
• Tampon/Feminine Pad: May not provide viable DNA.
• Drinking Straw: Air dry before packaging.
• Dental Floss: Do not touch floss with fingers.
• Semen (volume): ≥200μl, send frozen.
• Muscle/Organ Tissue: Non-embalmed specimens preferred.
• Fetal Demise: Reference sample from mother required.

🔹 Success Rate: 60% or Less

• Hair: Roots visible; 7–10 strands.
• Razor (disposable): Entire blade with debris.
• Comb/Brush: Entire item with debris.
• Chewing Tobacco: Sealed plastic bag; less than 3 days old.
• Jewelry: Ring, watch, necklace, etc.
• Chewing Gum: Sugarless preferred.
• Soda Can/Drinking Glass: Whole item preferable to swabbing.
• Clothing: Hats, ball caps, bandanas.
• Envelope Flaps/Stamps: Must have been licked.
• Condom: Send whole condom (inside & outside tested).
• Paraffin Embedded Tissue: Paraffin block or slides.

🔹 Success Rate: N/A

• Teeth: Molars preferred.
• Bone: Femur, humerus, or metacarpal (thumb bone).
• Feces: Sealed plastic bag, shipped cold/dry ice.