HESI LPN
HESI Focus on Maternity Exam
1. A client with preeclampsia is receiving magnesium sulfate by continuous IV infusion. Which finding should the nurse report to the provider?
- A. Blood pressure 148/94 mm Hg
- B. Respiratory rate 14/min
- C. Urinary output 20 mL/hr
- D. 2+ deep tendon reflexes
Correct answer: C
Rationale: In a client with preeclampsia receiving magnesium sulfate, a urinary output of 20 mL/hr is a concerning finding as it may indicate renal impairment or magnesium toxicity. Adequate urinary output is crucial for eliminating excess magnesium and preventing toxicity. The nurse should report this finding to the provider for further evaluation. A blood pressure of 148/94 mm Hg is elevated but expected in a client with preeclampsia. A respiratory rate of 14/min is within the normal range. 2+ deep tendon reflexes are a common finding in clients receiving magnesium sulfate and are not a cause for concern unless they progress to hyperreflexia or clonus.
2. A primiparous woman presents in labor with the following labs: hemoglobin 10.9 g/dL, hematocrit 29%, hepatitis surface antigen positive, Group B Streptococcus positive, and rubella non-immune. Which intervention should the nurse implement?
- A. Transfuse 2 units of packed red blood cells.
- B. Give measles, mumps, rubella vaccine 0.5 mL.
- C. Administer ampicillin 2 grams intravenously.
- D. Inject hepatitis B immune globulin 0.5 milliliters.
Correct answer: C
Rationale: The correct intervention in this scenario is to administer ampicillin 2 grams intravenously. This is crucial to prevent Group B Streptococcus infection in the newborn during delivery. Option A, transfusing packed red blood cells, is not indicated based on the hemoglobin and hematocrit levels provided. Option B, giving measles, mumps, rubella vaccine, is not necessary at this time. Option D, injecting hepatitis B immune globulin, is not appropriate for the conditions presented in the question.
3. What is the central layer of the embryo from which the bones and muscles develop?
- A. neural tube
- B. mesoderm
- C. ectoderm
- D. umbilical cord
Correct answer: B
Rationale: The correct answer is mesoderm. The mesoderm is the middle layer of the embryo that gives rise to the bones, muscles, and other connective tissues. The neural tube (choice A) develops into the nervous system, not bones and muscles. The ectoderm (choice C) forms the skin and nervous system, not bones and muscles. The umbilical cord (choice D) is a structure that connects the developing fetus to the placenta; it is not a layer of the embryo that gives rise to bones and muscles.
4. When caring for a pregnant woman with cardiac problems, the nurse must be alert for the signs and symptoms of cardiac decompensation. Which critical findings would the nurse find on assessment of the client experiencing this condition?
- A. Regular heart rate and hypertension.
- B. Increased urinary output, tachycardia, and dry cough.
- C. Shortness of breath, bradycardia, and hypertension.
- D. Dyspnea, crackles, and an irregular, weak pulse.
Correct answer: D
Rationale: In pregnant women with cardiac problems, signs of cardiac decompensation include dyspnea, crackles, an irregular, weak, and rapid pulse, rapid respirations, a moist and frequent cough, generalized edema, increasing fatigue, and cyanosis of the lips and nailbeds. Choice A is incorrect as a regular heart rate and hypertension are not typically associated with cardiac decompensation. Choice B is incorrect as increased urinary output and dry cough are not indicative of cardiac decompensation, only tachycardia is. Choice C is incorrect as bradycardia and hypertension are not typically seen in cardiac decompensation; dyspnea is a critical sign instead.
5. A nurse on an antepartum unit is reviewing the medical records for four clients. Which of the following clients should the nurse assess first?
- A. A client who has diabetes mellitus and an HbA1c of 5.8%
- B. A client who has preeclampsia and a creatinine level of 1.1 mg/dL
- C. A client who has hyperemesis gravidarum and a sodium level of 110 mEq/L
- D. A client who has placenta previa and a hematocrit of 36%
Correct answer: C
Rationale: A sodium level of 110 mEq/L is critically low and can indicate severe dehydration and electrolyte imbalance, requiring immediate intervention.
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