Causes of prolonged first stage of labor are all except: March 2009
Correct Answer: Rigid perineum
Description: Ans. C: Rigid Perineum The first stage stas with uterine contractions leading to complete cervical dilation and is divided into latent and active phases. In the latent phase, irregular uterine contractions occur with slow and gradual cervical effacement and dilation. The active phase is demonstrated by an increased rate of cervical dilation and fetal descent. The active phase usually stas at 3-4 cm cervical dilation and is subdivided into the acceleration, maximum slope, and deceleration phases. The second stage of labor is defined as complete dilation of the cervix to the delivery of the infant. The third stage of labor involves delivery of the placenta. Prolonged first stage of labour Latent phase: Diagnosis of abnormal labor during the latent phase is uncommon and likely an incorrect diagnosis. Active phase: Around the time uterine contractions cause the cervix to become 3-4 cm dilated, the patient usually enters the active phase of the first stage of labor. There may be abnormalities of cervical dilation (protracted dilation and arrest of dilation) or descent abnormalities (protracted descent and arrest of descent). In general, abnormal labor is the result of problems with one of the 3 P' s. Passenger (infant size, fetal presentation) Pelvis or passage (size, shape, and adequacy of the pelvis) Power (uterine contractility)
Category:
Gynaecology & Obstetrics
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now