Nokea
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.
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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.
In planning care for a client at 30-weeks gestation experiencing preterm labor, what maternal prescription is most important in preventing this fetus from developing respiratory syndrome?
- A. Betamethasone (Celestone) 12mg deep IM.
- B. Butorphanol 1mg IV push q2h PRN pain.
- C. Ampicillin 1g IV push q8h.
- D. Terbutaline (Brethine) 0.25mg subcutaneously q15 minutes x3.
Correct Answer: A
Rationale: The administration of Betamethasone (Celestone) is crucial in cases of preterm labor to promote fetal lung maturation and reduce the risk of respiratory distress syndrome in the newborn. Betamethasone helps enhance the production of surfactant in the fetal lungs, improving their functionality and decreasing the likelihood of respiratory complications upon birth. Butorphanol is an analgesic and not indicated for preventing respiratory syndrome in preterm infants. Ampicillin is an antibiotic used for infection prevention and treatment, not for fetal lung maturation. Terbutaline is a tocolytic agent used to inhibit contractions, but it does not have a direct effect on fetal lung maturity.
A primipara patient asks what is the best pet to have at home to share time with. Which pet is not recommended?
- A. Dog
- B. Cat
- C. Bird
- D. Fish
Correct Answer: C
Rationale: Birds are not recommended as pets for a primipara patient due to potential health risks associated with bird droppings, feathers, and dander. These factors may pose a risk to the newborn's health and the mother's well-being. Additionally, some birds can be loud, which may disrupt the baby's sleep patterns. Therefore, it is advisable for primipara patients to consider pets like dogs, cats, or fish as they generally have lower associated risks in a household with a newborn. Dogs, cats, and fish are relatively safer options compared to birds for primipara patients due to their lower risk of transmitting infections, allergens, or causing disturbances that could affect the newborn or the mother.
A 4-year-old boy presents with a rash and is diagnosed with varicella (chickenpox). What is the most appropriate intervention to manage this condition?
- A. Administer oral acyclovir.
- B. Apply calamine lotion to soothe itching.
- C. Encourage scratching to relieve itching.
- D. Encourage bed rest to avoid spreading the rash.
Correct Answer: B
Rationale: The most appropriate intervention for managing varicella (chickenpox) in a 4-year-old child is to apply calamine lotion to soothe itching. Calamine lotion helps alleviate the itching associated with the chickenpox rash, providing relief to the child. It is important to discourage scratching to prevent complications such as scarring or secondary bacterial infections. Encouraging bed rest can be beneficial for comfort but is not the primary intervention to manage chickenpox.
Using N¤gele's rule, what is the estimated date of delivery for a pregnant client who reports that the first day of her last menstrual period was August 2, 2006?
- A. April 25, 2007.
- B. May 9, 2007.
- C. May 29, 2007.
- D. June 2, 2007.
Correct Answer: B
Rationale: N¤gele's rule is used to estimate the date of delivery. It involves adding 7 days to the first day of the last menstrual period (August 2), which gives August 9. Then, subtracting 3 months from August 9, we arrive at May 9 of the following year as the estimated date of delivery. This makes choice B, 'May 9, 2007,' the correct answer. Choices A, C, and D are incorrect as they do not follow the correct calculation based on N¤gele's rule.