Included in the definition of tachysystole is:
Contraction duration of less than 40 seconds.
Contraction frequency of greater than 5 in 10 minutes.
Contraction intensity of less than 80 mm Hg.
Resting tone of less than 18 mm Hg.
The Correct Answer is B
Choice A rationale
Contraction duration less than 40 seconds doesn't define tachysystole. Tachysystole focuses on frequency, not duration, of contractions over a specific time frame.
Choice B rationale
Contraction frequency of more than 5 in 10 minutes defines tachysystole. This frequency indicates excessive uterine activity, requiring intervention to prevent fetal distress.
Choice C rationale
Contraction intensity less than 80 mm Hg does not define tachysystole. Intensity relates to contraction strength, but tachysystole is about frequency exceeding the normal range.
Choice D rationale
Resting tone less than 18 mm Hg isn't part of tachysystole's definition. Tachysystole pertains to contraction frequency, not resting tone, which measures uterine relaxation between contractions.
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Correct Answer is C
Explanation
Choice A rationale
While maternal lacerations are a risk during childbirth, they are not the greatest risk in cases of fetal dystocia. The focus is primarily on fetal wellbeing.
Choice B rationale
Fetal injury such as bruising can occur with dystocia, but the primary concern is the potential for severe, life-threatening complications.
Choice C rationale
Neonatal asphyxia related to prolonged labor is the greatest risk with fetal dystocia. Prolonged labor can lead to decreased oxygen supply to the fetus, causing asphyxia and
potential brain injury.
Choice D rationale
Increased consideration for a cesarean delivery is a possible outcome of fetal dystocia, but it is a management decision rather than a direct risk to the baby’s immediate health.
Correct Answer is C
Explanation
Choice A rationale
A 15-year-old, G3 P0020, although young, doesn't have an increased risk of uterine rupture related to prior surgical deliveries or other known factors.
Choice B rationale
A 22-year-old, G1 P0000 with eclampsia requires close monitoring for complications related to eclampsia but not specifically for uterine rupture.
Choice C rationale
A 25-year-old, G4 P3003 with a previous cesarean section is at increased risk for uterine rupture due to the scar from the prior surgery which could weaken under the stress of labor.
Choice D rationale
A 32-year-old, G2 P0100's history of a prior fetal demise does not specifically increase the risk of uterine rupture unless accompanied by other risk factors. .