a breastfeeding infant screened for congenital hypothyroidism is found to have low levels of thyroxine t4 and high levels of thyroid stimulating hormo
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HESI RN

HESI Maternity 55 Questions Quizlet

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?

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. Using Nägele'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?

Correct answer: B

Rationale: Nägele'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 Nägele's rule.

3. In assessing a 9-year-old boy admitted to the hospital with possible acute post-streptococcal glomerulonephritis (APSGN), what information is most significant to obtain in his history?

Correct answer: C

Rationale: A recent sore throat is most significant in this case as it could indicate a preceding streptococcal infection, which is a crucial factor in diagnosing APSGN. Streptococcal infection often precedes APSGN, and recognizing this history is essential for appropriate management and treatment. Choices A, B, and D are less relevant in the context of APSGN. Back pain and diuresis are symptoms that may not directly correlate with APSGN, while a history of hypertension, although important in general health assessment, is not as specific to the current scenario compared to a recent sore throat.

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?

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 loading dose of terbutaline (Brethine) 250 mcg IV is prescribed for a client in preterm labor. Brethine 20 mg is added to 1,000 mL of D5W. How many milliliters of the solution should the nurse administer?

Correct answer: D

Rationale: To calculate the amount of terbutaline to administer, first convert the dose to the same unit. 250 mcg = 0.25 mg. Next, set up a proportion: 20 mg is to 1000 mL as 0.25 mg is to X mL. Cross multiply and solve for X: 20 × X = 0.25 × 1000. X = (0.25 × 1000) / 20 = 12.5 mL. Therefore, the nurse should administer 13 mL of the solution. Choice A is incorrect as it does not reflect the correct calculation. Choice B is incorrect as it does not consider the accurate conversion and calculation. Choice C is incorrect as it is not the result of the correct proportion calculation.

Similar Questions

A client in active labor is admitted with preeclampsia. Which assessment finding is most significant in planning this client's care?
A newborn's parents tell the nurse that their baby is already trying to walk. How should the nurse respond?
A neonate with congenital adrenal hypoplasia (CAH) presents with ambiguous genitalia. What is the primary nursing consideration when supporting the parents of a child with this anomaly?
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?
The client at 10 weeks' gestation is palpated with the fundus at 3 fingerbreadths above the pubic symphysis. The client reports nausea, vomiting, and scant dark brown vaginal discharge. What action should the nurse take?

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