HESI RN
HESI Maternity Test Bank
1. An infant with tetralogy of Fallot becomes acutely cyanotic and hyperneic. Which action should the nurse implement first?
- A. Place the infant in a knee-chest position.
- B. Administer morphine sulfate.
- C. Start intravenous fluids.
- D. Provide 100% oxygen by face mask.
Correct answer: A
Rationale: In a tetralogy of Fallot situation, placing the infant in a knee-chest position is the initial priority to help increase systemic vascular resistance, which reduces the right-to-left shunt and improves oxygenation. This position can assist in optimizing oxygen levels before considering other interventions. Administering morphine sulfate (choice B) is not the first-line treatment for tetralogy of Fallot crisis. Starting intravenous fluids (choice C) may be necessary but is not the priority in this situation. Providing 100% oxygen by face mask (choice D) may not fully address the underlying issue of decreased systemic vascular resistance that leads to cyanosis in tetralogy of Fallot.
2. During a newborn assessment, which symptom would indicate respiratory distress if present in a newborn?
- A. Flaring of the nares.
- B. Shallow and irregular respirations.
- C. Respiratory rate of 50 breaths per minute.
- D. Abdominal breathing with synchronous chest movement.
Correct answer: A
Rationale: Flaring of the nares is a classic sign of respiratory distress in newborns. It indicates that the newborn is working hard to breathe, and immediate attention should be given to assess and address the respiratory status of the infant.
3. 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.
4. 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.
5. 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?
- A. Collect a urine sample for urinalysis.
- B. Measure vital signs.
- C. Recommend bed rest.
- D. Obtain human chorionic gonadotropin levels.
Correct answer: D
Rationale: In a pregnant client with a fundal height greater than expected at 10 weeks and experiencing scant dark brown vaginal discharge, there is a concern for a molar pregnancy. Assessing human chorionic gonadotropin (hCG) levels is crucial in this situation to confirm or rule out this condition.
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