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. An infant delivered vaginally by an HIV-positive mother is admitted to the newborn nursery. What intervention should the healthcare provider perform first?

• A. Bathe the infant with an antimicrobial soap.
• B. Measure the head and chest circumference.
• C. Obtain the infant's footprints.
• D. Administer vitamin K (AquaMEPHYTON).

Correct answer: A

Rationale: The initial intervention should be to bathe the infant with an antimicrobial soap to reduce the risk of HIV transmission from maternal fluids. This immediate action helps minimize potential exposure to the virus and promotes infection control practices in the care of infants born to HIV-positive mothers. Choice B, measuring head and chest circumference, is important for assessing growth and development but not the priority in this scenario. Choice C, obtaining footprints, is a routine procedure but not a priority over infection control measures. Choice D, administering vitamin K, is important for clotting factors but does not address the immediate risk of HIV transmission.

3. Upon admission to the prenatal clinic, a 23-year-old woman informs the nurse that her last menstrual period began on February 15, and that previously her periods were regular. Her pregnancy test is positive. What is this client's expected date of delivery (EDD)?

• A. November 22.
• B. November 8.
• C. December 22.
• D. October 22.

Correct answer: A

Rationale: To determine the expected date of delivery (EDD) using Nägele's rule, add 7 days to the first day of the last menstrual period (LMP) which is February 15, resulting in February 22. Then, subtract 3 months from February 22, which gives November 22 as the estimated due date.

4. During an examination for possible cryptorchidism in an infant, what technique should be used?

• A. Place the infant in a warm room and use a calm approach.
• B. Hold the scrotum and palpate gently.
• C. Cleanse the penis with an antiseptic-soaked pad.
• D. Position the infant in a warm room to prevent muscle contraction.

Correct answer: D

Rationale: When examining an infant for cryptorchidism, it is important to position the infant in a warm room to prevent muscle contraction, which could cause the testes to retract. Placing the infant in a side-lying position may not be necessary for this specific examination. Holding the penis or retracting the foreskin is not relevant to the assessment for cryptorchidism. Cleansing the penis with an antiseptic pad is not indicated for this examination.

5. A client at 18-weeks gestation was informed this morning that she has an elevated alpha-fetoprotein (AFP) level. After the healthcare provider leaves the room, the client asks what she should do next. What information should the nurse provide?

• A. Inform her that a repeat alpha-fetoprotein (AFP) should be evaluated.
• B. Discuss options for intrauterine surgical correction of congenital defects.
• C. Reassure the client that the AFP results are likely to be a false reading.
• D. Explain that a sonogram should be scheduled for definitive results.

Correct answer: D

Rationale: An elevated alpha-fetoprotein (AFP) level in a pregnant client can indicate potential congenital anomalies in the fetus. A follow-up sonogram is necessary to provide definitive results and further evaluate the fetus for any possible abnormalities. Therefore, it is essential for the nurse to explain to the client that scheduling a sonogram is the next appropriate step to assess the fetal well-being and address any concerns regarding the elevated AFP level. Choices A, B, and C are incorrect because a repeat AFP test alone, discussing surgical correction of defects, or assuming the results are false without further evaluation are not appropriate responses when dealing with a potentially serious issue like elevated AFP levels in pregnancy.

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