Artificial caput raised by a vacuum extractor is?

IGNOU Post B. SC. Nursing entrance-2019

Obstetrics & Gynaecology

Easy

Appeared in: IGNOU Post B. SC. Nursing entrance-2019

Explanation

A chignon is the specific medical term for the localized, circular area of scalp edema created by the application of a vacuum extractor (ventouse) during childbirth.
This swelling is caused by the negative pressure of the cup drawing serosanguinous fluid into the soft tissues of the scalp.
It is a temporary condition, conforming to the shape of the cup, and typically resolves within 24-48 hours.
The key differentiator is its direct cause (vacuum extractor) and its well-defined shape corresponding to the cup placement.

Option A: Caput succedaneum is generalized edema of the fetal scalp caused by the pressure of the presenting part against the dilating cervix during labor. It is not caused by an instrument.
Option B: A cephalhematoma is a collection of blood between the skull bone and its periosteum. It does not cross suture lines and appears hours after birth, taking weeks to resolve. It is a hemorrhage, not edema.
Option D: While 'suction caput' is a descriptive term for the condition, 'Chignon' is the more precise and formally accepted medical term used in clinical practice and for examinations.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Neonatal birth injuries related to the scalp as background academic context rather than a clinical decision trigger.
Nurses must accurately assess and differentiate neonatal scalp swellings to identify potential complications. While a chignon is benign, it must be distinguished from a cephalhematoma (risk of jaundice) and the more dangerous subgaleal hemorrhage (risk of severe blood loss and shock), which can also be associated with vacuum extraction.
Accurate documentation of the swelling's characteristics (size, location, crossing of suture lines, consistency) is essential for monitoring its resolution or progression.
Parental education is a key nursing role. Reassuring parents that a chignon is a common and temporary side effect of vacuum-assisted delivery can alleviate their anxiety.

How to Approach the Question

First, identify the key terms in the question: 'artificial caput' and 'vacuum extractor'. This points to a specific condition caused by an intervention.
Recall the different types of neonatal scalp swellings: caput succedaneum, cephalhematoma, and chignon.
Differentiate them based on their cause. Caput succedaneum is from labor pressure. Cephalhematoma is from ruptured blood vessels under the periosteum. Chignon is specifically from a vacuum device.
Recognize that 'Chignon' is the specific medical term for the swelling caused by a vacuum extractor.
Eliminate 'Caput succedaneum' and 'Cephalhematoma' as they have different causes and characteristics.
Choose 'Chignon' over the more descriptive but less formal term 'Suction caput' as the best answer in an examination context.

Concept Tested & Keywords

QeI0q2MettcL6x-68_f2qJ

E6 Text Book Of Pediatric Nursing 3rd Panchali Pal — Part 2 (pp 239-476 of 713) p. 10-12

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1065-1067

E6 Obstetrics Williams p. 18-35