Which of the following is not a probable sign of pregnancy?

Appeared in: JODHPUR AIIMS SNO-2018

Explanation

The signs of pregnancy are classified into presumptive (subjective), probable (objective but not definitive), and positive (conclusive).
Detection of the fetal heart rate, whether by electronic or non-electric (fetoscope) means, is a positive sign of pregnancy.
Positive signs confirm the presence of a fetus, making them distinct from probable signs, which only suggest pregnancy.
Therefore, detecting a fetal heart rate is not a probable sign; it is a positive sign.

Option A: Increased vaginal discharge (leukorrhea) is an objective finding that can be observed by an examiner and is classified as a probable sign of pregnancy.
Option C: Chadwick's sign, the bluish discoloration of the cervix and vagina, is a classic probable sign of pregnancy observed by an examiner due to increased vascularity.
Option D: Painless, irregular uterine contractions (Braxton Hicks contractions) that can be palpated by an examiner are considered a probable sign of pregnancy.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of signs of pregnancy (presumptive, probable, and positive) as background academic context rather than a clinical decision trigger.
Nurses must accurately differentiate between presumptive, probable, and positive signs of pregnancy to provide correct patient education and counseling.
Understanding this classification prevents misdiagnosis and ensures that a definitive diagnosis of pregnancy is based only on positive signs.
This knowledge is crucial for guiding appropriate antenatal care and managing patient expectations, especially in early pregnancy when symptoms can be ambiguous.

How to Approach the Question

First, understand the question is a negative-framing question, asking for what is 'NOT' a probable sign.
Recall the three categories of pregnancy signs: presumptive, probable, and positive.
Define each category: Presumptive (subjective symptoms), Probable (objective signs noted by examiner, but not 100% certain), and Positive (conclusive proof of pregnancy).
Evaluate each option against these definitions.
Option A (Vaginal discharge), C (Chadwick's sign), and D (Uterine contraction) are all objective signs an examiner can find, fitting the 'probable' category.
Option B (Fetal heart rate) is a direct confirmation of a living fetus, which is the definition of a 'positive' sign.

Concept Tested & Keywords

Concept Tested: Classification of signs of pregnancy (presumptive, probable, and positive).
Stem keywords: probable sign, pregnancy
Lead-in keywords: not
Negative lead-in flag: The question uses the word 'not', asking for the exception among the options.

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E6 Midwifery Obstetrics and Gynecology Nursing Sandeep Kaur p. 6-11

E6 Comprehensive Textbook of Community Health Nursing for BSc Nursing Students Part 2 — Subpart B (pp 276-535 of 550) p. 224-226

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