Related Experiment Video
Updated: Aug 18, 2026

Electromyometrial Imaging of Uterine Contractions in Pregnant Women
Published on: May 26, 2023
Abnormalities of the first and second stages of labor
Amen Ness1, Jay Goldberg, Vincenzo Berghella
1Department of Obstetrics and Gynecology, Jefferson Medical College of Thomas Jefferson University, 834 Chestnut Street, Suite 400, Philadelphia, PA 19107, USA.
Abstract:
Abnormalities of the first and second stages of labor refer for the most part to abnormal progression of labor. This article discusses the risk factors, diagnoses, management options, and outcomes of the various categories of labor abnormalities, and provides an evidence-based approach where one exists. The article concentrates on the term, healthy woman carrying a singleton, vertex, normally grown fetus with no anomalies.
Related Concept Videos
Stages of General Anesthesia
Respiratory System Abnormal Finding I: Inspection and Percussion
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
Local Anesthetics: Clinical Application as Epidural Anesthesia
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...
Cardiovascular System Abnormal Findings II: Auscultation
Abnormal Heart Sounds
Gallops:
Respiratory System Abnormal Finding II: Palpation and Auscultation
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Local Anesthetics: Differential Sensitivity of Nerve Fibers