Which of the following is not an indication of caesarean section?

RUHS, Jaipur, PB B.Sc Nursing Entrance-2022

Obstetrics & Gynaecology

Easy

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2022

Explanation

Vertex presentation is the normal, head-first (cephalic) position of the fetus for birth, with the head flexed.
This position is the most common and safest for a vaginal delivery, as it allows the smallest diameter of the fetal head to navigate the maternal pelvis.
Because it is the optimal presentation for a normal vaginal birth, it is the opposite of an indication for a caesarean section.

Option A: A complex or abnormal pelvic floor, such as a contracted pelvis (cephalopelvic disproportion) or significant prior pelvic reconstructive surgery, can physically block the baby's descent, leading to obstructed labor. A C-section is indicated to prevent maternal and fetal trauma.
Option B: A previous classical (vertical) uterine incision carries a significantly higher risk of uterine rupture during a subsequent labor compared to a low transverse incision. To prevent this life-threatening complication for both mother and baby, a repeat caesarean section is the standard of care.
Option C: Placenta previa is a condition where the placenta partially or completely covers the internal cervical os. Attempting a vaginal delivery would cause the placenta to detach as the cervix dilates, leading to catastrophic and life-threatening hemorrhage.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Indications for Caesarean Section as background academic context rather than a clinical decision trigger.
Nurses play a key role in assessing fetal presentation and position during labor using Leopold's maneuvers and vaginal examination, and in recognizing signs of labor dystocia that might necessitate a C-section.
Patient education is a critical nursing responsibility. Explaining the rationale for a recommended C-section, such as placenta previa or a history of a classical incision, is essential for obtaining informed consent and reducing patient anxiety.
What if? - If the fetal presentation was breech instead of vertex, a caesarean section would be strongly considered, especially for a first-time mother. This is due to the increased risks of umbilical cord prolapse and head entrapment during a vaginal breech delivery.

How to Approach the Question

First, identify that this is a negative question because it uses the word "NOT". The goal is to find the option that is an exception.
The question asks what is NOT an indication for a caesarean section. This means you are looking for a condition that is normal or ideal for a vaginal delivery.
Evaluate each option: 'Complex pelvic floor', 'Previous classical caesarean section', and 'Placenta previa' are all complications or high-risk conditions that would make a vaginal delivery dangerous.
Recognize that 'Vertex presentation' describes the normal, head-down position of the baby, which is the most favorable for a vaginal birth.
Therefore, the three problematic conditions are indications for a C-section, while the normal condition (vertex presentation) is not.

Concept Tested & Keywords

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E6 Obstetrics Williams p. 40-58