Clinical Session Now Available M-F @ 5PM by appointment only

We now offer clinical sessions Monday through Friday at 5PM by appointment only. Please call us at 618-288-3315 for more details or to set up an appointment time.

dna - sneakpeak


  • $129 (Next day results $20 upgrade) *Military Discount does not apply*
  • Administered by Trained Professional (Phlebotomist) 
  • Full Service Venipuncture 

Two Day Results


*Results will be sent via email within two days of the blood arriving in the California lab*

Fast Track Results


*Results will be sent via email the next day once the blood arrives in the California lab*

What is SneakPeek® Clinical?

     SneakPeek Clinical is an early gender DNA detection test offered to women starting at 9 weeks into pregnancy. The genetic test gives you the first step to connect with your baby before you are able to see the exciting clear images from your ultrasound scans. The full service includes an on-site phlebotomist that draws a blood sample in the comfort of the ultrasound studio, and then returns the sample to SneakPeek Labs for processing. The laboratories offer the fastest turnaround times in the industry, with a choice of receiving your result the same day the sample reaches the SneakPeek Lab. 


Multicenter blinded study conducted at four ultrasound clinics in 2015


The purpose of this study was to assess the clinical performance of SneakPeek® Early Gender Test (Gateway Genomics) for noninvasive prenatal testing (NIPT) of fetal sex. A multicenter-blinded study was conducted at four ultrasound clinics with maternal blood samples collected from pregnant women between 9 and 35 weeks of gestation. Circulating cell-free DNA was isolated from a micro-volume of maternal plasma and real-time quantitative PCR was performed to detect fetal DNA using a multi-copy sequence on the Y chromosome. An autosomal control gene was used to measure total cell-free DNA (maternal and fetal cfDNA). Sixty maternal plasma samples were tested twice, on different days, to assess the precision of SneakPeek. Cell-free DNA was detected in all maternal blood samples. Y-chromosome DNA was detected in all samples from women carrying a male fetus. SneakPeek correctly identified fetal sex in all samples. Assay precision data showed minimal variation and high reproducibility of results. Fetal sex for all samples was unknown prior to genetic testing and was confirmed via sonographic evaluation at the conclusion of the study. SneakPeek accuracy, sensitivity and specificity were each 100% for fetal sex identification. This blinded study showed that SneakPeek Early Gender Test is highly accurate for fetal sex determination in early pregnancy. 

Gestational Age of the 135 Pregnant Participants


Clinical Performance of SneakPeek Early Gender Test