Nursing Elites

1. A 4-week-old premature infant has been receiving epoetin alfa (Epogen) for the last three weeks. Which assessment finding indicates to the healthcare provider that the drug is effective?

• A. Slowly increasing urinary output over the last week.
• B. Respiratory rate changes from the 40s to the 60s.
• C. Changes in apical heart rate from the 180s to the 140s.
• D. Change in indirect bilirubin from 12 mg/dl to 8 mg/dl.

Correct answer: C

Rationale: The correct answer is C. Epoetin alfa stimulates erythropoiesis, leading to an increase in red blood cell production and improving oxygen-carrying capacity. As the oxygenation status improves, there is a reduction in heart rate. Therefore, changes in apical heart rate from the 180s to the 140s indicate that the drug is effective. Choices A, B, and D are incorrect because they do not directly reflect the expected outcome of epoetin alfa therapy. Increasing urinary output, changes in respiratory rate, and decreasing bilirubin levels are not primary indicators of the drug's effectiveness in this context.

2. 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.

3. At 40 weeks gestation, a client presents to the obstetrical floor with spontaneous rupture of amniotic membranes at home and is in active labor. The client feels the need to bear down and push. What information is most important for the nurse to obtain first?

• A. Estimated amount of fluid.
• B. Any odor noted when membranes ruptured.
• C. Color and consistency of fluid.
• D. Time the membranes ruptured.

Correct answer: C

Rationale: The color and consistency of the amniotic fluid are crucial to assess as they can provide valuable information about the presence of meconium, which may indicate fetal distress. Meconium-stained amniotic fluid can lead to complications such as meconium aspiration syndrome in the newborn. Therefore, assessing the color and consistency of the amniotic fluid is the priority in this situation to ensure timely interventions if needed. Estimated amount of fluid (Choice A) may be important but not as critical as assessing for meconium. Any odor noted when membranes ruptured (Choice B) is less relevant compared to assessing for meconium. Knowing the time the membranes ruptured (Choice D) is important but does not take precedence over assessing for fetal distress indicated by meconium presence.

4. At 20 weeks gestation, a client is scheduled for an ultrasound. In preparing the client for the procedure, the nurse should explain that the primary reason for conducting this diagnostic study is to obtain which information?

• A. Sex and size of the fetus.
• B. Chromosomal abnormalities.
• C. Fetal growth and gestational age.
• D. Lecithin-sphingomyelin ratio.

Correct answer: C

Rationale: The primary reason for an ultrasound at 20 weeks gestation is to assess fetal growth, gestational age, and anatomical development. This evaluation helps ensure the fetus is developing appropriately and can detect any potential issues that may require intervention. Choices A, B, and D are incorrect because at 20 weeks, the primary focus of the ultrasound is not to determine the sex of the fetus, detect chromosomal abnormalities, or assess the lecithin-sphingomyelin ratio. While these factors may be evaluated in pregnancy, they are not the primary reasons for an ultrasound at 20 weeks gestation.

5. A newborn with a yellow abdomen and chest is being assessed. What should be the nurse's initial action?

• A. Assess bilirubin level.
• B. Administer phototherapy.
• C. Encourage feeding to help reduce bilirubin levels.
• D. Perform a bilirubin test every hour.

Correct answer: A

Rationale: The correct action when assessing a newborn with a yellow abdomen and chest is to initially assess the bilirubin level. This helps determine the severity of jaundice in the newborn. Administering phototherapy (choice B) is a treatment intervention that follows the assessment. Encouraging feeding (choice C) can help with bilirubin excretion but is not the initial assessment. Performing a bilirubin test every hour (choice D) may not be necessary initially and could lead to unnecessary interventions.

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