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
The hemoglobin level of 11.6 g/dL is within the normal range for a pregnant woman. While placenta previa requires monitoring, it is not immediately life-threatening.
Choice B rationale
Type 2 diabetes mellitus requires regular monitoring and management, but a single fasting blood glucose level does not indicate an immediate emergency unless it is extremely high or low.
Choice C rationale
Partial placental abruption can lead to significant complications for both the mother and fetus, including hemorrhage and fetal distress, making it the priority for immediate assessment.
Choice D rationale
An Rh-negative status and a recent cerclage placement are important for ongoing monitoring but do not present an immediate life-threatening condition that demands the first assessment.
Correct Answer is D
Explanation
Choice A rationale
Checking blood sugar is important in gestational diabetes but isn't immediate priority in a triage setting compared to assessing urgent conditions that could harm the fetus or mother immediately.
Choice B rationale
Assessing vaginal blood loss post-abortion is crucial, but in the presence of ruptured membranes, fetal heart rate checks take precedence to ensure the fetus's immediate well-being.
Choice C rationale
Assessing patellar reflexes in pre-eclampsia management is significant, but immediate priority in labor and delivery triage goes to ensuring fetal safety after membrane rupture.
Choice D rationale
Checking the fetal heart rate after membrane rupture is a priority because it provides immediate information about the fetus's status and any potential complications like cord prolapse or distress.