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.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is D
Explanation
Choice A rationale
Oxytocin is used to induce or augment labor, not typically used before an external version, which is a procedure to turn a breech baby to a head-down position.
Choice B rationale
Methylergonovine is used to prevent or control postpartum hemorrhage by inducing strong uterine contractions, not indicated before an external version.
Choice C rationale
Betamethasone is a corticosteroid used to accelerate fetal lung maturity in preterm labor, not required for an external version.
Choice D rationale
Terbutaline is a tocolytic agent used to relax the uterus, making it easier to manipulate the fetus during the external version procedure.
Correct Answer is B
Explanation
Choice A rationale
Administering oxytocin during shoulder dystocia can exacerbate the problem by increasing uterine contractions, making it harder to deliver the baby's shoulder.
Choice B rationale
Flexing the client's thighs sharply toward her abdomen, known as the McRoberts maneuver, helps to widen the pelvis and can often resolve shoulder dystocia by changing the angle of the pelvic bones.
Choice C rationale
While applying oxygen is a standard practice to improve maternal and fetal oxygenation, it does not specifically address shoulder dystocia and is not a primary intervention.
Choice D rationale
Applying downward pressure on the fundus is contraindicated as it can worsen shoulder dystocia by further impacting the shoulder against the pelvic bone.