A nurse is preparing a client who is at 10 weeks of gestation for an ultrasound procedure.
Which of the following statements should the nurse make?
"With this procedure, we will be able to determine the biological sex of your fetus.”.
"With this procedure, we will be able to detect congenital anomalies.”.
"This procedure will help in determining your expected delivery date.”.
"This procedure will determine if you have enough amniotic fluid.”.
The Correct Answer is C
Choice A rationale
At 10 weeks of gestation, the external genitalia of the fetus are not yet fully differentiated or large enough to be reliably visualized and identified as male or female on an ultrasound. Fetal sex determination is typically more accurate later in pregnancy, usually after 16-20 weeks, when anatomical structures are more developed and distinct.
Choice B rationale
While some major structural congenital anomalies might be detectable at 10 weeks, a comprehensive and detailed assessment for a wide range of congenital anomalies is usually performed during the anomaly scan, which is typically conducted between 18 and 22 weeks of gestation. Fetal development is still ongoing at 10 weeks.
Choice C rationale
An ultrasound performed in the first trimester, particularly around 10 weeks, is highly accurate for estimating gestational age and, consequently, the expected delivery date. This is because fetal growth is very consistent during this period, allowing for precise measurements such as crown-rump length to determine gestational age within a small margin of error.
Choice D rationale
Assessment of amniotic fluid volume, often quantified using the amniotic fluid index (AFI) or deepest vertical pocket, is more commonly performed in the second and third trimesters of pregnancy. At 10 weeks, the amniotic fluid volume is relatively small, and its adequacy is not typically a primary focus of an early ultrasound unless there are specific concerns.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"A"},"C":{"answers":"A"},"D":{"answers":"A"},"E":{"answers":"B"}}
Explanation
- Discontinue oxytocin infusion (Expected): The client has contractions every 1–2 minutes lasting 90–120 seconds, indicating uterine tachysystole. Stopping oxytocin is a primary intervention to reduce contraction frequency and duration, preventing further fetal hypoxia.
- Assist with amnioinfusion (Expected): Amnioinfusion can help dilute thick meconium-stained amniotic fluid or relieve cord compression, which can cause late decelerations and minimal variability in FHR. It is often used to improve fetal oxygenation during uterine hyperstimulation.
- Give 500 mL of lactated Ringer’s IV bolus (Expected): Increasing maternal hydration improves uteroplacental perfusion, which can be compromised during frequent contractions. This intervention helps restore blood volume and oxygen delivery to the fetus.
- Place the client in a side-lying position (Expected): Lateral positioning improves uterine blood flow by relieving pressure on the vena cava and optimizing cardiac output and fetal oxygenation.
- Give betamethasone 12 mg IM now (Unexpected): Betamethasone is administered antenatally to accelerate fetal lung maturity in preterm labor (before 34 weeks). This client is at 38 weeks gestation, so corticosteroids are not indicated.
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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