HESI LPN
HESI Maternity 55 Questions
1. A pregnant client mentions in her history that she changes the cat's litter box daily. Which test should the nurse anticipate the healthcare provider to prescribe?
- A. Biophysical profile
- B. Fern test
- C. Amniocentesis
- D. TORCH screening
Correct answer: D
Rationale: The correct answer is D, TORCH screening. TORCH screening is done to detect infections such as toxoplasmosis, which can be contracted from handling cat litter and is harmful during pregnancy. Biophysical profile (choice A) is a prenatal ultrasound evaluation. Fern test (choice B) is used to assess for amniotic fluid leakage. Amniocentesis (choice C) involves taking a sample of amniotic fluid to test for genetic abnormalities and certain infections, not specifically related to toxoplasmosis from cat litter.
2. During a prenatal visit, for which of the following clients should the nurse auscultate the fetal heart rate?
- A. A client who has an ultrasound confirming a molar pregnancy
- B. A client who has a crown-rump length corresponding to 7 weeks gestation
- C. A client who has a positive urine pregnancy test 1 week after missed menses
- D. A client who has felt quickening for the first time
Correct answer: D
Rationale: The correct answer is D because feeling quickening typically occurs around 18-20 weeks of gestation, indicating fetal movement. This is an appropriate time to auscultate the fetal heart rate. Choice A is incorrect because a molar pregnancy is not a viable pregnancy, and auscultating the fetal heart rate in this case is not applicable. Choice B is incorrect because a crown-rump length of 7 weeks gestation is too early for fetal heart rate auscultation. Choice C is incorrect because a positive urine pregnancy test alone does not indicate the appropriate timing for fetal heart rate auscultation.
3. A client with hyperemesis gravidarum is being cared for by a nurse. Which of the following laboratory tests should the nurse anticipate?
- A. Urine Ketones
- B. Rapid plasma reagin
- C. Prothrombin time
- D. Urine culture
Correct answer: A
Rationale: Urine ketones should be anticipated as a laboratory test for a client with hyperemesis gravidarum because it helps assess the severity of dehydration and malnutrition, which are common complications of this condition. Choice B, rapid plasma reagin, is a test for syphilis and is not relevant to hyperemesis gravidarum. Choice C, prothrombin time, is a measure of blood clotting function and is not typically indicated for hyperemesis gravidarum. Choice D, urine culture, is used to identify bacteria in the urine and is not directly related to assessing dehydration and malnutrition in clients with hyperemesis gravidarum.
4. A newborn's head circumference is 12 inches (30.5 cm) and his chest measurement is 13 inches (33 cm). The nurse notes that this infant has no molding, and it was a breech presentation delivered by cesarean section. What action should the nurse take based on this data?
- A. No action needs to be taken, it is normal for an infant born by cesarean section to have a small head circumference.
- B. Notify the pediatrician immediately. These signs support the possibility of hydrocephalus.
- C. Call these findings to the attention of the pediatrician. The head/chest ratio is abnormal.
- D. Record the findings on the chart. They are within normal limits.
Correct answer: D
Rationale: Head and chest circumference measurements are within normal limits for a newborn, especially for those delivered by cesarean section, so no immediate action is required beyond documentation.
5. Which of the following pairs share 100% of their genes?
- A. Biovular twins
- B. Fraternal twins
- C. Dizygotic (DZ) twins
- D. Monozygotic (MZ) twins
Correct answer: D
Rationale: The correct answer is Monozygotic (MZ) twins. Monozygotic twins, also known as identical twins, share 100% of their genes because they originate from the same fertilized egg that splits into two. Fraternal twins (choice B), also known as dizygotic (DZ) twins (choice C), result from two separate fertilized eggs and share approximately 50% of their genes. Biovular twins (choice A) is not a term used in genetics and does not describe a type of twinning.
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