The earliest sign of placental separation is?

Appeared in: IGNOU PB Bsc Nsg Entrance-2017

Explanation

The earliest sign of placental separation is the change in the shape of the uterus.
Following the birth of the baby, the uterus begins to contract firmly.
This contraction causes the placental attachment site to shrink, leading to the placenta shearing off the uterine wall.
As a result, the uterus changes from a soft, flattened (discoid) shape to a hard, round (globular) shape.
This change in shape is the first clinically observable sign that placental separation has begun.

Option A: A sudden gush of blood is a later sign of placental separation. It occurs after the placenta has already detached and the blood that collected behind it is expelled.
Option C: An increase in the height of the fundus occurs after the placenta has separated and descended into the lower uterine segment, pushing the fundus upward. It is not the earliest sign.
Option D: Shock is not a normal sign of placental separation. It is a sign of a serious complication, such as postpartum hemorrhage (PPH), resulting from excessive blood loss.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Signs of placental separation in the third stage of labor as background academic context rather than a clinical decision trigger.
Recognizing the signs of placental separation is a critical nursing skill for managing the third stage of labor.
Prompt identification allows for timely intervention to assist with placental delivery and minimizes the risk of postpartum hemorrhage (PPH).
Failure to recognize these signs can lead to mismanagement, such as pulling on the cord before separation, which can cause uterine inversion, a life-threatening emergency.

How to Approach the Question

The question asks for the 'earliest' sign of a physiological process. This requires knowledge of the sequence of events.
Recall the four classic signs of placental separation: change in uterine shape, gush of blood, rise in fundal height, and cord lengthening.
Think through the physiology: The uterus must contract to detach the placenta. This contraction is what changes its shape from discoid to globular.
The other signs (rise of fundus, cord lengthening, gush of blood) are consequences of the placenta having already detached and moved down.
Therefore, the change in uterine shape is the primary and earliest event.
Eliminate 'shock' as it is a sign of a complication (hemorrhage), not a normal physiological sign of separation.

Concept Tested & Keywords

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E6 Midwifery Obstetrics and Gynecology Nursing Sandeep Kaur p. 48-56

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