Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Analysis for amniotic fluid crystallization in second-trimester amniocentesis.

S Elias, A O Martin, V A Patel

    American Journal of Obstetrics and Gynecology
    |February 15, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    PGDIS position statement on the transfer of mosaic embryos 2021.

    Reproductive biomedicine online·2022
    Same author

    Synaptic communication mediates the assembly of a self-organizing circuit that controls reproduction.

    Science advances·2021
    Same author

    Developing a core outcome set for future infertility research: an international consensus development study.

    Fertility and sterility·2020
    Same author

    Developing a core outcome set for future infertility research: an international consensus development study†  ‡.

    Human reproduction (Oxford, England)·2020
    Same author

    PGDIS Position Statement on the Transfer of Mosaic Embryos 2019.

    Reproductive biomedicine online·2019
    Same author

    Sputum basophils are increased in eosinophilic asthma compared with non-eosinophilic asthma phenotypes.

    Allergy·2017
    Same journal

    Early patient removal of urinary catheters after urogynecologic surgery, a randomized trial.

    American journal of obstetrics and gynecology·2026
    Same journal

    Standard vs. Lower Pressure Pneumoperitoneum in Laparoscopic Gynecologic Surgery: A Randomized Controlled Trial.

    American journal of obstetrics and gynecology·2026
    Same journal

    Association of Surgical Approach with Oncologic Outcomes in Low-Risk Cervical Cancer.

    American journal of obstetrics and gynecology·2026
    Same journal

    Trends in Infertility Treatments by Race, Ethnicity, Socioeconomic Status, and Region in U.S. Birth Certificates from Live Births: 2011-2022.

    American journal of obstetrics and gynecology·2026
    Same journal

    Likelihood ratios enhance clinical interpretation of metagenomic prediction of early-onset neonatal sepsis in preterm premature rupture of membranes (Letter-to-the-Editor).

    American journal of obstetrics and gynecology·2026
    Same journal

    Taking risk stratification in preterm premature rupture of membranes to the bedside (Reply to Letter-to-the-Editor).

    American journal of obstetrics and gynecology·2026
    See all related articles

    The crystalline arborization test reliably distinguishes amniotic fluid from maternal urine during second-trimester amniocentesis. This simple test helps ensure accurate genetic testing by confirming fluid origin.

    Area of Science:

    • Obstetrics and Gynecology
    • Medical Diagnostics
    • Fetal Medicine

    Background:

    • Second-trimester amniocentesis is crucial for prenatal genetic diagnosis.
    • Accidental aspiration of maternal urine instead of amniotic fluid is a potential complication.
    • Misidentification of fluid can lead to diagnostic errors and procedural complications.

    Purpose of the Study:

    • To evaluate the reliability of the crystalline arborization test in differentiating amniotic fluid from maternal urine.
    • To establish a simple diagnostic method for confirming amniotic fluid during amniocentesis.

    Main Methods:

    • A randomized, blind study comparing the crystalline arborization pattern of amniotic fluid and maternal urine.
    • Air-drying of collected fluid samples to observe for characteristic crystalline structures.

    Related Experiment Videos

  • Assessment of test accuracy in distinguishing between the two fluid types.

    • Main Results:

    • The crystalline arborization test correctly identified amniotic fluid in 24 out of 25 cases.
    • None of the 25 maternal urine samples exhibited the characteristic crystalline arborization pattern.
    • The test demonstrated high accuracy in distinguishing amniotic fluid from urine.

    Conclusions:

    • The crystalline arborization test is a reliable and effective method for differentiating amniotic fluid from maternal urine.
    • This diagnostic test can enhance the safety and accuracy of second-trimester amniocentesis for genetic indications.