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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Related Questions
Correct Answer is D
Explanation
Choice A rationale
Polyuria, an abnormally large production of urine, is not a typical adverse effect of epidural analgesia. Epidural analgesia, due to its influence on sympathetic nervous system blockade, can sometimes lead to urinary retention by inhibiting bladder detrusor muscle contraction and relaxing the urethral sphincter. Therefore, polyuria would be an unexpected finding.
Choice B rationale
A maternal temperature of 37.4° C (99.4° F) is within the normal physiological range for a laboring client. Slight elevations can occur due to the metabolic demands of labor or dehydration, but this temperature does not indicate an adverse effect directly attributable to epidural analgesia. Fever, defined as a temperature above 38° C (100.4° F), can be associated with epidural use due to thermoregulatory changes.
Choice C rationale
A fetal heart rate of 152/min is within the normal range for a term fetus, typically 110-160 beats per minute. This finding indicates a healthy fetal response and does not suggest an adverse effect of epidural analgesia. Epidural analgesia itself usually does not directly alter the fetal heart rate in a negative way if maternal hemodynamics remain stable.
Choice D rationale
Hypotension is a common adverse effect of epidural analgesia. It occurs due to sympathetic blockade, which causes vasodilation and peripheral pooling of blood, leading to decreased venous return to the heart and a subsequent drop in cardiac output and blood pressure. This reduction in blood pressure can compromise uteroplacental perfusion.
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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