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. A multiparous client is involuntarily pushing while being wheeled into the labor triage area. The nurse observes the fetal head presenting at the perineum. Which action should the nurse take?
- A. Support the infant as it emerges.
- B. Review prenatal laboratory results.
- C. Obtain fetal heart tones.
- D. Apply suprapubic pressure.
Correct answer: A
Rationale: When the fetal head is visible at the perineum, the priority is to support the infant's birth to prevent injury. Providing support as the infant emerges helps ensure a safe delivery process and reduces the risk of complications associated with rapid or uncontrolled birth.
3. In which chromosome pattern is Duchenne disease inherited?
- A. Autosomal dominant
- B. Autosomal recessive
- C. X-linked recessive
- D. Mitochondrial
Correct answer: C
Rationale: Duchenne disease is caused by a mutation in the DMD gene located on the X chromosome, leading to an X-linked recessive inheritance pattern. Males are typically affected by this disorder as they have only one X chromosome, while females are carriers with one normal and one affected X chromosome.
4. During the newborn admission assessment, the nurse palpates the newborn's scrotum and does not feel the testicles. Which assessment technique should the nurse perform next to verify the absence of testes?
- A. Observe the urethral opening on the surface of the penis when the newborn voids.
- B. Perform transillumination of the scrotal sac to visualize shadows of the testes.
- C. Use a fingertip to palpate the inguinal canal for a retractile or undescended testis.
- D. Measure the size of the scrotal sac for length and width.
Correct answer: C
Rationale: If the testes are not palpated in the scrotum, the next step is to check the inguinal canal for a retractile or undescended testis. This technique allows the nurse to determine if the testes are located within the inguinal canal rather than the scrotum. It is essential to assess for the presence of testes in the inguinal canal to ensure proper diagnosis and management of any potential issues related to testicular positioning.
5. The LPN/LVN identifies crepitus when examining the chest of a newborn who was delivered vaginally. Which further assessment should the nurse perform?
- A. Elicit a positive scarf sign on the affected side.
- B. Observe for an asymmetrical Moro (startle) reflex.
- C. Watch for swelling of fingers on the affected side.
- D. Note paralysis of the affected extremity and muscles.
Correct answer: B
Rationale: Crepitus in a newborn's chest following vaginal delivery may indicate a clavicle fracture. Observing for an asymmetrical Moro reflex is essential because it can indicate potential nerve damage or fracture, which may be associated with the crepitus identified during the examination.
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