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 A
Explanation
Choice A rationale
Methylergonovine (Methergine) is used to manage postpartum hemorrhage by stimulating uterine contractions. It is especially useful in cases like this where rapid uterine tone is needed.
Choice B rationale
Magnesium sulfate is used to prevent seizures in preeclamptic patients, not to manage postpartum hemorrhage. This choice is incorrect in this context.
Choice C rationale
Carboprost-tromethamine (Hemabate) is also used for treating postpartum hemorrhage but is typically a secondary option to methylergonovine and may have more side effects.
Choice D rationale
Fresh frozen plasma (FFP) is used to replace clotting factors in cases of coagulopathy, not as a primary intervention for postpartum hemorrhage in this patient.
Correct Answer is B
Explanation
Choice A rationale
Decreased muscle tone is not typically associated with neonatal abstinence syndrome (NAS). Instead, NAS often presents with hypertonia or increased muscle tone due to
withdrawal symptoms.
Choice B rationale
A continuous high-pitched cry is a hallmark sign of NAS, indicating the newborn is experiencing withdrawal and discomfort. This symptom results from the overstimulation of the
central nervous system.
Choice C rationale
Newborns with NAS often have difficulty sleeping and may sleep for shorter periods due to irritability and discomfort. Prolonged sleep after feeding is not characteristic of NAS.
Choice D rationale
Tremors in newborns with NAS are usually pronounced and continuous, not just when disturbed. These tremors are a result of withdrawal effects on the nervous system.