A nurse is reinforcing teaching with a client who is undergoing amniotic fluid assessment for the lecithin/sphingomyelin ratio. Which of the following client statements indicates an understanding of the teaching?
The results can indicate a genetic disorder.
This test determines how well my placenta is functioning.
This test is done if there is a risk of an Rh incompatibility.
The results will show if my baby's lungs are mature.
The Correct Answer is D
Choice A rationale
Lecithin/sphingomyelin (L/S) ratio does not indicate genetic disorders; it's used to assess fetal lung maturity.
Choice B rationale
The test does not determine placental function. It specifically evaluates fetal lung maturity through the ratio of lecithin to sphingomyelin in amniotic fluid.
Choice C rationale
The test is not used to assess the risk of Rh incompatibility. The L/S ratio focuses on lung development rather than blood compatibility issues.
Choice D rationale
The L/S ratio assesses the baby's lung maturity, indicating if the lungs produce enough surfactant for proper function after birth.
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Correct Answer is C
Explanation
Choice A rationale
Maternal age of 21 years is not considered a significant risk factor for gestational diabetes. Typically, advanced maternal age (35 years or older) is considered a risk factor due to changes in insulin resistance that occur with age.
Choice B rationale
A fasting blood glucose of 72 mg/dL is within the normal range and does not indicate a risk for gestational diabetes. Gestational diabetes is usually diagnosed with fasting blood glucose levels higher than 95 mg/dL.
Choice C rationale
Previous newborn weighing 4.8 kg is a significant risk factor for gestational diabetes. Having a macrosomic (large) baby in a previous pregnancy is linked with an increased risk of developing gestational diabetes in subsequent pregnancies.
Choice D rationale
A prepregnancy BMI of 23 is within the normal range (18.5-24.9) and does not increase the risk of gestational diabetes. Higher BMI levels, particularly above 25, are associated with an increased risk.
Correct Answer is A
Explanation
Choice A rationale
Positioning the newborn's car seat at a 45° angle helps to maintain an open airway and reduces the risk of the baby's head falling forward, which can obstruct breathing.
Choice B rationale
Placing the car seat in a forward-facing position is incorrect for a newborn. Newborns and infants should always be placed in a rear-facing car seat to protect their head, neck, and spine in the event of a crash.
Choice C rationale
Placing a rolled blanket behind the newborn's neck is not recommended as it can alter the position of the head and neck, potentially compromising the airway. Proper positioning is crucial to ensure safety and comfort.
Choice D rationale
The retainer clip should be positioned at the level of the newborn's armpits, not the umbilicus. Proper placement of the retainer clip ensures that the harness is secure and reduces the risk of injury in a collision.