Following are the methods of induction of labor EXCEPT?

AIIMS Raipur - 2017 (Shift-3)

Obstetrics & Gynaecology

Easy

Appeared in: AIIMS Raipur - 2017 (Shift-3)

Explanation

Methergin (methylergometrine) is an ergot alkaloid and is not used for labor induction.
It causes strong, sustained uterine contractions (tetanic contractions) without the normal relaxation phase seen in labor.
This lack of relaxation can lead to severe complications, including fetal hypoxia (lack of oxygen) and uterine rupture.
Methergin's primary clinical use is in the third stage of labor or postpartum period to control bleeding (postpartum hemorrhage) by making the uterus contract firmly.

Option A: Artificial rupture of membranes (ARM), or amniotomy, is a well-established mechanical method for inducing or augmenting labor.
Option C: Oxytocin is one of the most common pharmacological agents used for both inducing and augmenting labor by stimulating uterine contractions.
Option D: Prostaglandins (like misoprostol and dinoprostone) are widely used for cervical ripening and labor induction.

Visual 1: Table - Create a table comparing the uses, mechanisms, and contraindications of uterotonic drugs like Oxytocin, Prostaglandins, and Methergin.
Visual 2: Flowchart - Illustrate the decision-making process for labor induction, showing the points where methods like ARM, prostaglandins, and oxytocin are considered.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain This question tests the knowledge of different methods used for the induction of labor and the specific contraindications of certain uterotonic agents as background academic context rather than a clinical decision trigger.
Medication safety is a critical nursing responsibility. Knowing the difference between drugs that induce labor (uterotonics) and those that are used to manage postpartum hemorrhage (also uterotonics, but with different actions) is essential to prevent catastrophic harm to both mother and fetus.
Administering Methergin to induce labor is a serious medication error with life-threatening consequences. Nurses must be vigilant in verifying drug orders and understanding their indications.
What if? - If a patient is experiencing postpartum hemorrhage due to uterine atony after delivery, Methergin would be an appropriate medication to administer (if not contraindicated by hypertension), as its powerful, sustained contractile effect is needed to stop the bleeding.

How to Approach the Question

First, identify the core concept of the question, which is 'induction of labor'.
Note the keyword 'EXCEPT'. This means you are looking for the option that is NOT a method of labor induction.
Evaluate each option against your knowledge of obstetrical procedures.
Recall or look up the purpose of 'Artificial rupture of membrane'. It's a standard induction method.
Recall or look up 'Oxytocin'. It's the most common drug for induction.
Recall or look up 'Prostaglandin'. It's used for cervical ripening and induction.

Concept Tested & Keywords

Concept Tested: This question tests the knowledge of different methods used for the induction of labor and the specific contraindications of certain uterotonic agents.
Stem keywords: methods, induction of labor
Lead-in keywords: EXCEPT
Negative lead-in flag: The question uses the word 'EXCEPT', requiring identification of the option that does not belong.

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