HESI LPN
HESI Maternity 55 Questions
1. Individuals with Klinefelter syndrome produce:
- A. less estrogen than normal males.
- B. less testosterone than normal males.
- C. less adenine than normal males.
- D. less thymine than normal males.
Correct answer: B
Rationale: Individuals with Klinefelter syndrome have an extra X chromosome (XXY), leading to reduced production of testosterone, the primary male sex hormone. This deficiency can result in various physical and developmental characteristics associated with the syndrome. Estrogen levels may actually be relatively elevated due to the imbalance between testosterone and estrogen. Choices C and D are incorrect as adenine and thymine are nucleotide bases found in DNA and are not related to hormone production.
2. A nurse is reviewing laboratory results for a term newborn who is 24 hours old. Which of the following results require intervention by the nurse?
- A. WBC count 10,000/mm3
- B. Platelets 180,000/mm3
- C. Hemoglobin 20g/dL
- D. Glucose 20 mg/dL
Correct answer: D
Rationale: A glucose level of 20 mg/dL is critically low for a newborn and requires immediate intervention. Hypoglycemia in a newborn can lead to serious complications such as neurologic deficits. The normal range for glucose levels in a newborn is typically 40-60 mg/dL. Choices A, B, and C represent normal or acceptable values for a term newborn and do not require immediate intervention. A WBC count of 10,000/mm3, platelets of 180,000/mm3, and hemoglobin of 20g/dL are all within normal ranges for a term newborn and do not raise immediate concerns.
3. A primigravida at 36 weeks gestation who is RH-negative experienced abdominal trauma in a motor vehicle collision. Which assessment finding is most important for the nurse to report to the healthcare provider?
- A. Fetal heart rate at 162 beats per minute
- B. Mild contractions every 10 minutes
- C. Trace of protein in the urine
- D. Positive fetal hemoglobin testing
Correct answer: D
Rationale: The correct answer is 'Positive fetal hemoglobin testing' (D). Positive fetal hemoglobin testing (Kleihauer-Betke test) indicates fetal-maternal hemorrhage, which is critical in an RH-negative mother due to the risk of isoimmunization. This condition can lead to sensitization of the mother's immune system against fetal blood cells, potentially causing hemolytic disease of the newborn in subsequent pregnancies. Reporting this finding promptly is crucial for appropriate management and interventions. Choices A, B, and C are not as critical in this scenario. While monitoring fetal heart rate and contractions is important, the detection of fetal-maternal hemorrhage takes precedence due to the serious implications it poses for the current and future pregnancies of an RH-negative mother.
4. What is the highest priority nursing intervention when admitting a pregnant woman who has experienced a bleeding episode in late pregnancy?
- A. Assessing FHR and maternal vital signs.
- B. Performing a venipuncture for hemoglobin and hematocrit levels.
- C. Placing clean disposable pads to collect any drainage.
- D. Monitoring uterine contractions.
Correct answer: A
Rationale: The highest priority nursing intervention when admitting a pregnant woman who has experienced a bleeding episode in late pregnancy is to assess the fetal heart rate (FHR) and maternal vital signs. This assessment is crucial in determining the extent of blood loss and its impact on both the mother and the fetus. Ensuring the well-being of both the mother and the fetus is the top priority in this situation. While obtaining hemoglobin and hematocrit levels is important, it can be done after the initial assessment. Placing clean disposable pads is necessary for managing any drainage but does not take precedence over assessing vital signs. Monitoring uterine contractions is important but is not the highest priority when compared to assessing the FHR and maternal vital signs.
5. The _________ is the hollow organ within females in which the embryo and fetus develop.
- A. placenta
- B. ovum
- C. uterus
- D. amniotic sac
Correct answer: C
Rationale: The correct answer is C: uterus. The uterus is the organ where the embryo implants and the fetus develops during pregnancy. The placenta (choice A) is an organ that develops during pregnancy and provides nutrients and oxygen to the fetus, but it is not the organ where the embryo and fetus physically develop. The ovum (choice B) is the female reproductive cell or egg that is fertilized by the sperm to form an embryo, but it is not the organ where the embryo and fetus develop. The amniotic sac (choice D) is a membrane filled with amniotic fluid that surrounds and protects the fetus, but it is not the organ where the embryo and fetus physically develop.
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