A nurse is caring for a client who is in a trial of labor for vaginal birth after cesarean (VBAC). The client reports a sudden tearing pain in their back and side that does not feel like a uterine contraction.
Which of the following findings indicates the client may be experiencing a uterine rupture?
Observation of a sudden gush of amniotic fluid.
Hypotension with a blood pressure of 85/40 mm Hg.
Severe bradypnea with a respiratory rate of 10/min.
Palpation of the fetal presenting part in the cervical os.
The Correct Answer is B
Choice A rationale
A sudden gush of amniotic fluid typically indicates rupture of membranes (ROM), which can be spontaneous or induced. While ROM can occur during labor, it is not a direct indicator of uterine rupture, which is a catastrophic event involving the tearing of the uterine wall and often presents with different clinical signs.
Choice B rationale
Hypotension with a blood pressure of 85/40 mm Hg is a critical finding suggesting hypovolemic shock, often due to internal hemorrhage, which is a common consequence of uterine rupture. The sudden loss of maternal blood into the abdominal cavity leads to a rapid decrease in circulating blood volume and subsequent systemic hypotension.
Choice C rationale
Severe bradypnea with a respiratory rate of 10/min is not a primary indicator of uterine rupture. Bradypnea often suggests central nervous system depression, possibly from medication effects or other neurological events, but is not a direct physiological response to the acute blood loss and pain associated with a uterine tear.
Choice D rationale
Palpation of the fetal presenting part in the cervical os is a normal finding during labor progression as the fetus descends. However, if the presenting part is palpated higher or outside the uterus, it can indicate expulsion of the fetus into the abdominal cavity following a complete uterine rupture, which is an abnormal and emergent finding.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"B"}
Explanation
The client is at risk for developing Intraamniotic infection as evidenced by White blood cell count.
Rationale for correct answers:
Intraamniotic infection (chorioamnionitis) is a bacterial infection of the amniotic sac often associated with prolonged rupture of membranes and labor. This client has spontaneous rupture of membranes (SROM) 1 hour ago with positive nitrazine test confirming amniotic fluid presence. The elevated white blood cell count (19,800/mm³; normal 5,000–15,000/mm³) is an early marker of infection or inflammation. The presence of group B streptococcus further increases infection risk. The amniotic fluid is moderate and clear, which is normal, so fluid characteristics alone do not indicate infection. Early identification and management of intraamniotic infection are critical to prevent maternal and fetal morbidity.
Rationale for incorrect Response 1 options:
Fetal hypoxia typically manifests as abnormal fetal heart rate patterns such as late decelerations or decreased variability, which are not present here (FHR 150/min, moderate variability). Labor dystocia refers to abnormal or slow labor progress; with 2 cm dilation and regular contractions, no evidence suggests dystocia yet. Gestational hypertension is a maternal hypertensive disorder unrelated to current rupture or WBC findings.
Rationale for incorrect Response 2 options:
Amniotic fluid characteristics (clear, moderate) are normal and not indicative of infection. Uterine tone is moderate and normal on palpation, not suggesting infection or abnormal labor. Cervical exam findings (2 cm dilation, 10% effacement) are early labor signs but do not indicate infection risk.
Take home points:
- Elevated WBC after rupture of membranes signals increased risk of intraamniotic infection.
- Clear amniotic fluid with positive nitrazine confirms membrane rupture but does not confirm infection.
- Early labor signs should be monitored for infection risk, especially with group B strep positive status.
- Differentiating infection from other labor complications like dystocia or fetal hypoxia relies on clinical signs and fetal monitoring.
Correct Answer is D
Explanation
Choice A rationale
The specific volume of formula for gavage feeding a newborn, such as 20 mL, depends on the newborn's weight, gestational age, and clinical condition. A blanket recommendation of 20 mL without this individualized assessment is inappropriate and could lead to over or underfeeding, impacting growth and gastrointestinal tolerance.
Choice B rationale
Placing a newborn in a supine position immediately after gavage feedings increases the risk of aspiration, especially for infants with immature swallowing reflexes or reflux. The newborn should be positioned on their right side or semi-Fowler's position to facilitate gastric emptying and minimize aspiration risk.
Choice C rationale
While cluster feeding (multiple feedings close together) is a natural pattern for some breastfed infants, for gavage feeding, regular, scheduled intervals are typically maintained to ensure consistent nutrient delivery and proper digestion, especially in newborns who are medically fragile. Cluster feeding is not a standard gavage feeding practice.
Choice D rationale
Nonnutritive sucking (e.g., pacifier use) during gavage feedings is crucial for promoting oral motor development and associating the feeling of fullness with sucking. This helps prevent oral aversion and prepares the newborn for eventual oral feeding, stimulating gastric secretions and improving digestion.
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