A woman at 26 weeks of gestation is being assessed to determine whether she is experiencing preterm labor. Which finding is most indicative that preterm labor is occurring?
The cervix is effacing and dilated to 2 cm
Irregular, mild uterine contractions are occurring every 15-30 minutes
Estriol is not found in maternal saliva
Fetal fibronectin is present in vaginal secretions
The Correct Answer is A
A. The cervix is effacing and dilated to 2 cm. Cervical changes, including effacement and dilation, are the most definitive signs of preterm labor. Uterine contractions alone do not confirm preterm labor unless they result in cervical dilation, indicating that labor is progressing.
B. Irregular, mild uterine contractions are occurring every 15-30 minutes. Irregular contractions, known as Braxton Hicks contractions, can be common in pregnancy and do not necessarily indicate preterm labor. True preterm labor involves regular contractions that lead to cervical changes.
C. Estriol is not found in maternal saliva. The absence of estriol in maternal saliva does not confirm or rule out preterm labor. Salivary estriol testing is not a widely used or reliable diagnostic tool for determining the onset of preterm labor.
D. Fetal fibronectin is present in vaginal secretion. Fetal fibronectin (fFN) is a protein found in vaginal secretions between 22-34 weeks of pregnancy and can indicate a risk of preterm labor, but its presence alone does not confirm that labor is actively occurring. A positive fFN test means the patient may be at increased risk for preterm labor, but cervical changes remain the best indicator of actual labor.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Jaundice. Oxytocin does not cause jaundice in the mother. Jaundice is typically related to liver dysfunction, hemolysis, or bile obstruction and is not an expected side effect of oxytocin administration.
B. Dehydration. While prolonged labor induction may contribute to dehydration if fluid intake is insufficient, oxytocin itself does not directly cause dehydration. IV fluids are typically administered alongside oxytocin to maintain hydration during labor.
C. Uterine hyperstimulation. Uterine hyperstimulation (tachysystole), defined as more than five contractions in 10 minutes, is a serious complication of oxytocin administration. It can lead to fetal distress, uterine rupture, and impaired placental perfusion. If hyperstimulation occurs, the nurse should discontinue oxytocin, reposition the patient, provide oxygen, and notify the provider.
D. Maternal bradycardia. Oxytocin does not typically cause bradycardia. Maternal side effects are more commonly tachycardia, hypertension, or fluid retention. Fetal bradycardia, however, can occur if uterine hyperstimulation leads to fetal hypoxia.
Correct Answer is D
Explanation
A. Apply oxygen. While oxygen may be administered if fetal distress is present, it does not directly resolve shoulder dystocia, which is a mechanical issue requiring immediate positional maneuvers to free the impacted shoulder.
B. Increase IV Pitocin. Increasing oxytocin (Pitocin) is contraindicated in shoulder dystocia because it can cause stronger contractions, worsening the impaction and increasing the risk of fetal injury or uterine rupture.
C. Apply downward pressure on the woman's fundus. Fundal pressure should never be applied in shoulder dystocia, as it can further wedge the fetal shoulder against the pubic bone, increasing the risk of brachial plexus injury and fetal distress.
D. Flex the woman's thighs sharply toward her abdomen. The McRoberts maneuver, which involves sharply flexing the mother’s thighs to widen the pelvic outlet, is the first-line intervention for shoulder dystocia. This maneuver helps rotate the pelvis and reposition the fetal shoulder, increasing the chances of a successful vaginal delivery.
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