Question:
Which of the following is NOT a clinical sign of scar rupture?
Which of the following is NOT a clinical sign of scar rupture?
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Scar rupture causes maternal tachycardia from blood loss, not bradycardia; fetal bradycardia, hematuria, and vaginal bleeding are the real warning signs.
Updated On: Jul 8, 2026
- Maternal bradycardia
- Fetal bradycardia
- Hematuria
- Bleeding per vaginum
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question.
Scar rupture means the giving way of a previous uterine scar, most often from an earlier cesarean, during labor. We are asked which of the listed findings is NOT one of its clinical signs.
Step 2: Key Concept or Approach.
When a uterine scar ruptures, the fetus can lose its blood supply and the mother can start bleeding internally and externally. The recognized signs are sudden sharp abdominal pain, the contractions stopping, loss of the fetal station on vaginal exam, bleeding per vaginum, hematuria if the tear extends into the bladder, and fetal distress that shows up as fetal bradycardia, often the earliest and most reliable sign.
On the maternal side, the mother is losing blood into the abdomen or vagina. The body's normal response to blood loss is to speed up the heart to keep organs perfused, so the expected finding is maternal tachycardia, not bradycardia.
Step 3: Detailed Explanation.
Fetal bradycardia is a well known and often the first sign of scar rupture, caused by placental separation and reduced blood flow to the baby.
Hematuria appears when the rupture line extends close to the bladder, since the bladder sits just in front of the lower uterine segment where a cesarean scar usually is.
Bleeding per vaginum happens as blood tracks down through the cervix and vagina.
Maternal bradycardia is not part of this picture. A mother losing blood becomes tachycardic and hypotensive as she moves toward shock, the heart rate rises, it does not fall.
Step 4: Final Answer.
The sign that is NOT seen in scar rupture is maternal bradycardia, since blood loss drives the maternal heart rate up, not down.
\[ \boxed{\text{Maternal bradycardia}} \]
Scar rupture means the giving way of a previous uterine scar, most often from an earlier cesarean, during labor. We are asked which of the listed findings is NOT one of its clinical signs.
Step 2: Key Concept or Approach.
When a uterine scar ruptures, the fetus can lose its blood supply and the mother can start bleeding internally and externally. The recognized signs are sudden sharp abdominal pain, the contractions stopping, loss of the fetal station on vaginal exam, bleeding per vaginum, hematuria if the tear extends into the bladder, and fetal distress that shows up as fetal bradycardia, often the earliest and most reliable sign.
On the maternal side, the mother is losing blood into the abdomen or vagina. The body's normal response to blood loss is to speed up the heart to keep organs perfused, so the expected finding is maternal tachycardia, not bradycardia.
Step 3: Detailed Explanation.
Fetal bradycardia is a well known and often the first sign of scar rupture, caused by placental separation and reduced blood flow to the baby.
Hematuria appears when the rupture line extends close to the bladder, since the bladder sits just in front of the lower uterine segment where a cesarean scar usually is.
Bleeding per vaginum happens as blood tracks down through the cervix and vagina.
Maternal bradycardia is not part of this picture. A mother losing blood becomes tachycardic and hypotensive as she moves toward shock, the heart rate rises, it does not fall.
Step 4: Final Answer.
The sign that is NOT seen in scar rupture is maternal bradycardia, since blood loss drives the maternal heart rate up, not down.
\[ \boxed{\text{Maternal bradycardia}} \]
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