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. A new mother calls the nurse stating that she wants to start feeding her 6-month-old child something besides breast milk, but is concerned that the infant is too young to start eating solid foods. How should the nurse respond?

• A. Advise the mother to wait at least another month before starting any solid foods.
• B. Instruct the mother to offer a few spoons of 2 or 3 pureed fruits at each meal.
• C. Reassure the mother that the infant is old enough to eat iron-fortified cereal.
• D. Encourage the mother to schedule a developmental assessment of the infant.

Correct answer: C

Rationale: At 6 months, infants are generally ready to start eating iron-fortified cereals as their iron stores begin to deplete. Introducing iron-fortified cereals at this age helps meet the infant's nutritional needs, particularly for iron, which becomes deficient as the infant's iron reserves diminish. It is a safe and appropriate first food to introduce to infants around 6 months of age, along with continued breastfeeding or formula feeding. Choice A is incorrect because waiting another month is not necessary if the infant is 6 months old. Choice B is incorrect as introducing pureed fruits as the first food may not provide the necessary iron that the infant needs at this stage. Choice D is also incorrect as scheduling a developmental assessment is not indicated solely based on the desire to start solid foods; it is more appropriate to reassure the mother about starting iron-fortified cereal.

3. A child who received multiple blood transfusions after correction of a congenital heart defect is demonstrating muscular irritability and oozing blood from the surgical incision. Which serum value is most important for the nurse to obtain before reporting to the healthcare provider?

• A. CO2 combining power
• B. Calcium
• C. Sodium
• D. Chloride

Correct answer: B

Rationale: The correct answer is Calcium. In this scenario, the child is displaying symptoms of muscular irritability and oozing blood, which are indicative of hypocalcemia. Calcium levels are crucial to monitor after multiple blood transfusions to prevent complications such as hypocalcemia, which can lead to these symptoms. Therefore, obtaining a serum calcium value is essential for the nurse to assess and address the child's condition effectively. CO2 combining power, Sodium, and Chloride levels are not directly associated with the symptoms described and are not the priority in this situation.

4. A client is admitted to the postpartum unit and tells the nurse she had rheumatic fever as a child, which resulted in some 'heart damage'. The nurse knows that this client is at particular risk for developing heart failure during the immediate postpartum period. Based on the client's history, which nursing problem has the highest priority?

• A. Nausea and vomiting.
• B. Risk for infection.
• C. Sleep deprivation.
• D. Fluid volume excess.

Correct answer: D

Rationale: Fluid volume excess is a priority concern in this client, as heart damage from rheumatic fever can impair the heart's ability to manage increased blood volume postpartum, leading to potential heart failure. Monitoring and managing fluid volume status are crucial to prevent complications in this high-risk client. Choices A, B, and C are not the highest priority in this situation. Nausea and vomiting, risk for infection, and sleep deprivation are important but do not pose an immediate threat to the client's physiologic stability compared to the risk of heart failure due to fluid volume excess.

5. When should the LPN/LVN encourage the laboring client to begin pushing?

• A. When there is only an anterior or posterior lip of the cervix left.
• B. When the client describes the need to have a bowel movement.
• C. When the cervix is completely dilated.
• D. When the cervix is completely effaced.

Correct answer: C

Rationale: The LPN/LVN should encourage the laboring client to begin pushing when the cervix is completely dilated to 10 centimeters. Pushing before full dilation can lead to cervical injury and ineffective labor progress. By waiting for complete dilation, the client can push effectively, aiding in the descent of the baby through the birth canal. Choices A, B, and D are incorrect because pushing before complete dilation can be harmful and may not effectively help in the descent of the baby. The presence of an anterior or posterior lip of the cervix, the urge to have a bowel movement, or complete effacement of the cervix are not indicators for the initiation of pushing during labor.

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