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Included in the definition of tachysystole is:

A.

Contraction duration of less than 40 seconds.

B.

Contraction frequency of greater than 5 in 10 minutes.

C.

Contraction intensity of less than 80 mm Hg.

D.

Resting tone of less than 18 mm Hg.

Answer and Explanation

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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View Related questions

Correct Answer is A

Explanation

Choice A rationale

History of preterm birth is the principal risk factor for predicting preterm birth. Previous preterm births significantly increase the likelihood of subsequent preterm deliveries due to

underlying etiological factors.

Choice B rationale

Low prepregnancy weight is a risk factor but not as significant as a history of preterm birth. It can contribute to complications in pregnancy but does not have the same predictive value.

Choice C rationale

Smoking during pregnancy increases the risk of preterm birth but is not the principal risk factor. It is a modifiable behavior that contributes to poor pregnancy outcomes.

Choice D rationale

Obesity can impact pregnancy outcomes but is not the principal risk factor for preterm birth. It is associated with other complications rather than directly predicting preterm delivery.

Correct Answer is C

Explanation

Choice A rationale

While it’s true that increased discomfort is expected with twins due to additional physical strain and space constraints, this alone is not sufficient reassurance. It is vital to assess for

signs of preterm labor or other complications.

Choice B rationale

Performing a digital cervical examination is a valid approach to checking for dilation, but this action must be carefully considered based on other signs and symptoms presented by

the patient. The focus here is on ensuring the absence or presence of labor, which might require hospital assessment.

Choice C rationale

Sending the patient to the hospital to be checked for possible signs of labor ensures that professional monitoring and interventions can occur if labor is confirmed. This action

prioritizes safety, given the increased risk of complications with twin pregnancies and the advanced gestation of 37 weeks.

Choice D rationale

Assuring the patient of the absence of contractions after an examination might provide temporary relief, but it does not address the possibility of other signs of labor or complications

that may require more comprehensive hospital assessment.

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