Nursing Elites

1. A breastfeeding infant, screened for congenital hypothyroidism, is found to have low levels of thyroxine (T4) and high levels of thyroid-stimulating hormone (TSH). What is the best explanation for this finding?

• A. The thyroxine level is low because the TSH level is high.
• B. High thyroxine levels do not normally occur in breastfeeding infants.
• C. The thyroid gland does not produce normal levels of thyroxine for several weeks after birth.
• D. The TSH is high because of the low production of T4 by the thyroid.

Correct answer: D

Rationale: High TSH and low T4 levels indicate that the thyroid gland is not producing enough hormones, which is a sign of congenital hypothyroidism. In this case, the high TSH is a compensatory response by the body to stimulate the thyroid to produce more T4. Choice A is incorrect because TSH does not directly affect T4 levels; rather, it is the other way around where low T4 levels lead to high TSH levels. Choice B is incorrect because high thyroxine levels are not expected in congenital hypothyroidism. Choice C is incorrect as the thyroid gland should be producing normal levels of thyroxine shortly after birth, making this explanation unlikely in the context of congenital hypothyroidism.

2. To confirm respiratory distress syndrome (RDS) in a newborn, what should the nurse assess?

• A. Assess diaphragmatic breathing.
• B. Assess heart sounds.
• C. Monitor blood oxygen levels.
• D. Check for signs of infection.

Correct answer: A

Rationale: To confirm respiratory distress syndrome (RDS) in a newborn, the nurse should assess diaphragmatic breathing. In RDS, the baby may have difficulty breathing due to immature lungs, leading to shallow, rapid breathing movements. Assessing diaphragmatic breathing directly evaluates the respiratory effort and can help identify the presence of RDS. Choice B, assessing heart sounds, is not specific to diagnosing RDS but could be relevant for other conditions. Choice C, monitoring blood oxygen levels, is important but alone may not confirm RDS. Choice D, checking for signs of infection, is not a direct indicator of RDS but rather suggests a different issue.

3. During a woman's first prenatal visit, the nurse reviews her health care record, noting a history of chickenpox as a child and syphilis as a teenager. Which action is most important for the nurse to take?

• A. Obtain blood and urine for prenatal screens.
• B. Schedule prenatal visits to occur monthly.
• C. Explain common complications of pregnancy.
• D. Obtain baseline blood pressure and weight.

Correct answer: A

Rationale: Obtaining blood and urine for prenatal screens is crucial in identifying any potential infections or conditions that may require monitoring throughout the pregnancy. Screening for infections such as syphilis is essential to ensure appropriate management and prevent adverse outcomes. This action helps in early detection and timely intervention, promoting the health and well-being of both the mother and the developing fetus. The other options, while important during prenatal care, are not as critical as obtaining prenatal screens to assess for any existing infections that could impact the pregnancy.

4. The client is 30 weeks pregnant and experiencing preterm labor. Which medication should the nurse anticipate administering to promote fetal lung maturity?

• A. Betamethasone (Celestone).
• B. Magnesium sulfate.
• C. Terbutaline (Brethine).
• D. Ampicillin.

Correct answer: A

Rationale: Betamethasone (Celestone) is the medication of choice to promote fetal lung maturity in cases of preterm labor. It helps accelerate surfactant production in the fetal lungs, reducing the risk of respiratory distress syndrome. Administering betamethasone to the mother can improve the baby's lung function and overall outcome if preterm birth occurs. Magnesium sulfate is commonly used to prevent seizures in preeclampsia or eclampsia. Terbutaline is a tocolytic agent used to suppress preterm labor contractions. Ampicillin is an antibiotic used for various bacterial infections but does not promote fetal lung maturity.

5. In caring for a 4-year-old boy recently diagnosed with Duchenne muscular dystrophy (DMD), which characteristic of the disease is most important for the nurse to focus on during the initial teaching?

• A. Lower legs become progressively weaker, causing a waddling, unsteady gait.
• B. Growth and development have been abnormal since birth.
• C. Muscular strength can be regained with physical exercise and therapy.
• D. Respiratory dysfunction and aspiration are prime concerns at this stage of the disease.

Correct answer: A

Rationale: In Duchenne muscular dystrophy, a key characteristic is the progressive weakness in the lower legs, leading to a waddling, unsteady gait. The nurse should focus on teaching about this aspect as it helps in understanding the disease's progression and managing the symptoms effectively.

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