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. Upon arrival in the nursery, a newborn infant is breathing satisfactorily but appears dusky. What action should the LPN/LVN take first?

• A. Notify the healthcare provider immediately.
• B. Suction the infant's nares, then the oral cavity.
• C. Check the infant's oxygen saturation rate.
• D. Position the infant on the right side.

Correct answer: C

Rationale: The priority action in this scenario is to check the infant's oxygen saturation rate. This will provide crucial information on the infant's oxygen levels and the need for immediate oxygen therapy. Assessing oxygen saturation is essential in determining the severity of hypoxia and guiding further interventions to ensure adequate oxygenation. Option A is not the priority as immediate intervention related to oxygenation is needed before notifying the healthcare provider. Suctioning (Option B) may be necessary but should come after assessing oxygen saturation. Positioning the infant (Option D) does not address the immediate need to evaluate oxygen levels.

3. When performing the daily head-to-toe assessment of a 1-day-old newborn, the nurse observes a yellow tint to the skin on the forehead, sternum, and abdomen. Which action should the nurse take?

• A. Measure bilirubin levels using transcutaneous bilirubinometry.
• B. Evaluate cord blood Coombs test results.
• C. Review maternal medical records for blood type and Rh factor.
• D. Prepare the newborn for phototherapy.

Correct answer: A

Rationale: The presence of a yellow tint on the skin of a newborn suggests jaundice. The initial step in managing jaundice in a newborn is to measure bilirubin levels, typically done using transcutaneous bilirubinometry. This measurement helps determine the severity of jaundice and guides appropriate treatment interventions. Evaluating cord blood Coombs test results or reviewing maternal medical records for blood type and Rh factor are not the immediate actions indicated when jaundice is suspected. Phototherapy may be considered after confirming elevated bilirubin levels and assessing the need for treatment.

4. During the newborn admission assessment, the nurse palpates the newborn's scrotum and does not feel the testicles. Which assessment technique should the nurse perform next to verify the absence of testes?

• A. Observe the urethral opening on the surface of the penis when the newborn voids.
• B. Perform transillumination of the scrotal sac to visualize shadows of the testes.
• C. Use a fingertip to palpate the inguinal canal for a retractile or undescended testis.
• D. Measure the size of the scrotal sac for length and width.

Correct answer: C

Rationale: If the testes are not palpated in the scrotum, the next step is to check the inguinal canal for a retractile or undescended testis. This technique allows the nurse to determine if the testes are located within the inguinal canal rather than the scrotum. It is essential to assess for the presence of testes in the inguinal canal to ensure proper diagnosis and management of any potential issues related to testicular positioning.

5. What action should the nurse take if an infant, who was born yesterday weighing 7.5 lbs (3,402 grams), weighs 7 lbs (3,175 grams) today?

• A. Inform and assure the mother that this is normal weight loss.
• B. Encourage the mother to increase the frequency of breastfeeding.
• C. After verifying the accuracy of weight, notify the healthcare provider.
• D. Monitor the stool and urine output of the neonate for the last 24 hours.

Correct answer: A

Rationale: The correct action for the nurse to take in this situation is to inform and assure the mother that this weight loss is normal. Newborns can lose up to 10% of their birth weight in the first few days after birth, which is attributed to fluid loss and adjustment to life outside the womb. This weight loss is typically regained within the first two weeks of life. It is crucial for the nurse to educate and provide reassurance to the mother about this common occurrence in newborns.

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