HESI LPN
HESI Focus on Maternity Exam
1. What nursing action should the nurse implement for a 3-hour-old male infant who presents with cyanotic hands and feet, an axillary temperature of 96.5°F (35.8°C), a respiratory rate of 40 breaths per minute, and a heart rate of 165 beats per minute?
- A. Administer oxygen by mouth at 2L/min
- B. Gradually warm the infant under a radiant heat source
- C. Notify the pediatrician of the infant's vital signs
- D. Perform a heel-stick to maintain blood glucose levels
Correct answer: B
Rationale: The correct nursing action is to gradually warm the infant under a radiant heat source. The infant is presenting with signs of cold stress, indicated by cyanotic extremities and a low body temperature. Gradual warming is crucial to stabilize the infant's temperature and prevent further complications. Administering oxygen, notifying the pediatrician, or performing a heel-stick are not the priority actions in this scenario and may not address the immediate need to raise the infant's body temperature.
2. A healthcare provider is teaching a prenatal class about immunizations that newborns receive following birth. Which of the following immunizations should the provider include in the teaching?
- A. Hepatitis B
- B. Rotavirus
- C. Pneumococcal
- D. Varicella
Correct answer: A
Rationale: The correct answer is Hepatitis B. Newborns receive the Hepatitis B vaccine shortly after birth to provide protection against the virus. Rotavirus, Pneumococcal, and Varicella vaccines are typically administered at later stages of infancy or childhood, not immediately after birth. Rotavirus vaccine helps prevent severe diarrhea, Pneumococcal vaccine protects against infections like pneumonia and meningitis, and Varicella vaccine prevents chickenpox. However, these vaccines are not part of the routine immunizations given to newborns immediately after birth.
3. Which of the following is most likely to develop sickle cell anemia?
- A. European American
- B. Native American
- C. African American
- D. Asian American
Correct answer: C
Rationale: Sickle cell anemia is most commonly found in individuals of African American descent. This is because sickle cell trait provides some protection against malaria, and historically, regions where malaria is or was prevalent have higher rates of sickle cell anemia. Therefore, individuals with African ancestry are at a higher risk of developing sickle cell anemia compared to other populations. Choices A, B, and D are less likely to develop sickle cell anemia due to lower genetic prevalence in their respective populations.
4. Rh incompatibility occurs when an Rh-negative woman is carrying an Rh-positive fetus.
- A. TRUE
- B. FALSE
- C. Sometimes
- D. Never
Correct answer: B
Rationale: Rh incompatibility occurs when an Rh-negative woman is carrying an Rh-positive fetus, not the other way around. Therefore, the statement that an Rh-positive woman is carrying an Rh-negative fetus is incorrect. Rh incompatibility can lead to hemolytic disease of the newborn, where maternal antibodies attack the fetal red blood cells. Choice A is incorrect because the statement is false. Choice C is incorrect as Rh incompatibility has a clear cause and effect relationship. Choice D is incorrect as Rh incompatibility can occur, but it depends on the Rh status of the mother and fetus.
5. A healthcare professional is caring for a client who is 14 weeks of gestation. At which of the following locations should the healthcare professional place the Doppler device when assessing the fetal heart rate?
- A. Midline 2 to 3 cm (0.8 to 1.2 in) above the symphysis pubis
- B. Left Upper Abdomen
- C. Two fingerbreadths above the umbilicus
- D. Lateral at the Xiphoid Process
Correct answer: A
Rationale: At 14 weeks of gestation, the uterus is still relatively low in the abdomen. Placing the Doppler midline 2 to 3 cm above the symphysis pubis is appropriate for assessing the fetal heart rate. This location allows for better detection of the fetal heart tones as the uterus is at a lower position during this stage of pregnancy. Placing the Doppler on the left upper abdomen would not be ideal at 14 weeks gestation as the uterus is not yet at that level. Placing it two fingerbreadths above the umbilicus or lateral at the xiphoid process would also not be accurate for locating the fetal heart rate at this stage of gestation.
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