HESI LPN
HESI Focus on Maternity Exam
1. A charge nurse is teaching a group of staff nurses about fetal monitoring during labor. Which of the following findings should the charge nurse instruct the staff members to report to the provider?
- A. Contraction durations of 95 to 100 seconds
- B. Contraction frequency of 2 to 3 minutes apart
- C. Absent early deceleration of fetal heart rate
- D. Fetal heart rate is 140/min
Correct answer: A
Rationale: The correct answer is A. Contraction durations of 95 to 100 seconds are prolonged, indicating uterine hyperstimulation, which can lead to fetal distress and requires immediate intervention. Reporting this finding to the provider is crucial to ensure timely management and prevent adverse outcomes. Choice B, contraction frequency of 2 to 3 minutes apart, is within the normal range and does not raise immediate concerns. Choice C, absent early deceleration of fetal heart rate, is a reassuring finding suggesting fetal well-being. Choice D, a fetal heart rate of 140/min, is also normal for a fetus and does not typically require immediate reporting unless it deviates significantly from the baseline or is accompanied by other concerning signs.
2. Females with Turner syndrome:
- A. possess more thymine than cytosine.
- B. are taller than average.
- C. produce little estrogen.
- D. are more likely to give birth to twins.
Correct answer: C
Rationale: Turner syndrome is a chromosomal disorder in females characterized by short stature and underdeveloped ovaries, resulting in low estrogen production. This leads to symptoms such as delayed puberty and infertility. Choice A is incorrect because the chromosomal abnormality in Turner syndrome does not affect the thymine-cytosine ratio. Choice B is incorrect as females with Turner syndrome are typically shorter than average. Choice D is incorrect as Turner syndrome does not increase the likelihood of giving birth to twins.
3. _____ is a life-threatening disease, characterized by high blood pressure that may afflict women late in the second or early in the third trimester.
- A. Rubella
- B. Syphilis
- C. Preeclampsia
- D. Phenylketonuria
Correct answer: C
Rationale: Preeclampsia is a serious pregnancy complication characterized by high blood pressure that typically occurs in the second half of pregnancy. If left untreated, it can lead to severe complications for both the mother and the baby. Rubella (choice A) is a viral infection that can harm the developing fetus but is not directly related to high blood pressure in pregnancy. Syphilis (choice B) is a sexually transmitted infection that can affect pregnancy but does not specifically cause high blood pressure. Phenylketonuria (choice D) is a genetic disorder that affects metabolism and is not associated with high blood pressure in pregnancy.
4. Most victims of _____ die of respiratory infections in their 20s.
- A. Tay-Sachs disease
- B. cystic fibrosis
- C. Turner syndrome
- D. Klinefelter syndrome
Correct answer: B
Rationale: Individuals with cystic fibrosis have a genetic disorder that causes mucus to be thick and sticky, leading to blockages in the lungs and digestive system. This mucus buildup makes them more susceptible to severe respiratory infections, which can ultimately result in premature death in their 20s. Tay-Sachs disease (Choice A) is a genetic disorder that affects the nervous system, not typically causing respiratory infections. Turner syndrome (Choice C) and Klinefelter syndrome (Choice D) are chromosomal disorders that do not directly lead to the respiratory issues observed in cystic fibrosis.
5. According to a study conducted in 2013 by Fellman, what affects the chances of having twins?
- A. Increase when a woman conceives at a younger age.
- B. Increase with parental age.
- C. Decrease with the frequency of intercourse before conception.
- D. Decrease with the use of fertility drugs.
Correct answer: B
Rationale: The correct answer is B. According to the study by Fellman in 2013, the chances of having twins actually increase with parental age. Choice A is incorrect as the study does not specify a younger age for conceiving to increase the chances of twins. Choice C is incorrect as the frequency of intercourse before conception is not a highlighted factor in the study. Choice D is also incorrect as the study does not discuss the impact of fertility drugs on the likelihood of having twins.
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