HESI RN
HESI Maternity Test Bank
1. 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?
- A. 45
- B. 15 mL
- C. 4
- D. 13
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.
2. The healthcare provider is reviewing the serum laboratory findings for a 5-day-old infant with congenital adrenal hyperplasia. Which laboratory result should be reported to the healthcare provider immediately?
- A. Bilirubin of 1.5 mg/dl.
- B. Glucose of 80 mg/dl.
- C. Potassium of 4.5 mEq/L.
- D. Sodium of 119 mEq/L.
Correct answer: D
Rationale: Low sodium levels in congenital adrenal hyperplasia can indicate salt-wasting crisis, which is a life-threatening emergency requiring immediate medical attention. Monitoring sodium levels is crucial to prevent complications such as dehydration and shock in these patients.
3. The healthcare provider is preparing to suture a 10-year-old with a lacerated forehead. Both parents and the 12-year-old sibling are at the child’s bedside. Which instruction best supports the family?
- A. While waiting for the healthcare provider, only one family member may stay with the child.
- B. All family members should leave while the healthcare provider sutures the child’s forehead.
- C. It is best if the sibling goes to the waiting room until the suturing is completed.
- D. Please decide among yourselves who will stay when the healthcare provider begins suturing.
Correct answer: D
Rationale: Choice D is the best instruction as it involves the family in the decision-making process, allowing them to choose who will stay with the child during the suturing procedure. This approach supports the family's comfort and participation in the child's care, promoting a sense of control and family-centered care. Choices A, B, and C do not promote family involvement and may lead to feelings of exclusion or lack of control among the family members.
4. 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?
- A. April 25, 2007.
- B. May 9, 2007.
- C. May 29, 2007.
- D. June 2, 2007.
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.
5. 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.
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