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
PTB is the leading cause of neonatal mortality and for antenatal hospitalization. This is accurate because preterm birth (PTB) is a significant cause of infant mortality and often
requires extended hospital stays for the management of complications.
Choice B rationale
PTBs result in increased numbers of neonatal and infant deaths and long-term neurological impairment. This is accurate because preterm births are associated with higher rates of
mortality and long-term health issues in infants.
Choice C rationale
PTL is defined as regular uterine contractions resulting in cervical changes before 37 weeks gestation. This is accurate because preterm labor (PTL) is indeed characterized by these
symptoms occurring before full-term pregnancy.
Choice D rationale
Average costs for premature/low birthweight infants are more than 10 times as high than for other newborns. This is accurate because medical care for premature and low
birthweight infants is significantly more expensive due to the need for specialized care and extended hospital stays.
Correct Answer is B
Explanation
Choice A rationale
While massaging the fundus and ensuring IV access are correct initial actions, methylergonovine (Methergine) is typically used for patients without hypertensive history due to its
potential to raise blood pressure.
Choice B rationale
This option correctly identifies initial steps and appropriate medication. Carboprost-tromethamine (Hemabate) is effective in controlling postpartum hemorrhage and can be safely
used in patients with hypertension when oxytocin is insufficient.
Choice C rationale
Quantifying blood loss is essential but it is not an immediate priority when the patient is showing signs of significant bleeding and instability. Immediate intervention to control bleeding
takes precedence.
Choice D rationale
Assisting the patient to the restroom and then massaging the fundus overlooks the immediate need to control bleeding. This approach may delay necessary treatment and increase
the risk of further hemorrhage.
Choice E rationale
Straight catheterization and oxytocin maintenance are part of the management of postpartum hemorrhage but do not address the immediate need to ensure uterine contraction and
control active bleeding as effectively as the initial steps outlined in Choice B. .