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Related Concept Videos

Ovarian Cycle01:27

Ovarian Cycle

The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle length...
Mitral Valve Prolapse III: Nursing Management01:19

Mitral Valve Prolapse III: Nursing Management

The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
Proliferative Phase01:20

Proliferative Phase

The proliferative phase typically occurs after menstruation and lasts between 6 to 13 days in a standard 28-day cycle. This phase involves the reconstruction of the endometrium, guided by estrogen produced by the developing ovarian follicle.
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Pathophysiology of Diabetes01:20

Pathophysiology of Diabetes

Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
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Related Experiment Video

Updated: Jun 13, 2026

Is My Mouse Pregnant? High-Frequency Ultrasound Assessment
02:39

Is My Mouse Pregnant? High-Frequency Ultrasound Assessment

Published on: March 18, 2021

Prolonged Pregnancy: Is It or Isn't It?

S C Macleod

    Canadian Family Physician Medecin De Famille Canadien
    |May 15, 2010
    PubMed
    Summary

    Managing prolonged pregnancies (over 42 weeks) is crucial for reducing perinatal risks. Early diagnosis and monitoring, including urinary estriol tests and amniocentesis, help manage high-risk pregnancies effectively.

    Area of Science:

    • Obstetrics and Gynecology
    • Perinatology
    • Maternal-Fetal Medicine

    Background:

    • Prolonged pregnancy, exceeding 42 weeks gestational age, is associated with increased perinatal mortality and morbidity.
    • Accurate diagnosis of gestational age is essential from the initial prenatal visit, as retrospective confirmation is not feasible.

    Purpose of the Study:

    • To outline effective management strategies for prolonged pregnancies.
    • To highlight the importance of early detection and intervention to mitigate risks.

    Main Methods:

    • Utilizing frequent urinary estriol determinations for monitoring.
    • Employing selective amniocentesis to assess fetal well-being.
    • Implementing careful monitoring for fetal distress and early intervention.

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    Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model
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    Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model

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  • Considering maternal X-ray for suspected anencephalic monsters when estriol levels are low.

    • Main Results:

    • Frequent urinary estriol tests and selective amniocentesis aid in managing high-risk pregnancies.
    • Early detection of fetal distress and prompt intervention are key to preventing adverse outcomes.
    • Elective cesarean section may be indicated for a select few.

    Conclusions:

    • Effective management of prolonged pregnancy involves accurate dating, vigilant monitoring, and timely interventions.
    • A combination of low estriol levels and prolonged gestation warrants further investigation, including X-ray, to rule out anencephaly.