HESI RN
Maternity HESI Quizlet
1. A male infant with a 2-day history of fever and diarrhea is brought to the clinic by his mother, who tells the nurse that the child refuses to drink anything. The nurse determines that the child has a weak cry with no tears. Which intervention is most important to implement?
- A. Provide a bottle of electrolyte solution.
- B. Infuse normal saline intravenously.
- C. Administer an antipyretic rectally.
- D. Apply an external cooling blanket.
Correct answer: B
Rationale: Infusing normal saline intravenously is crucial to treat dehydration caused by fever and diarrhea. In this scenario, the infant's weak cry with no tears indicates severe dehydration, necessitating rapid fluid replacement via intravenous normal saline to restore fluid balance and prevent complications.
2. A mother calls the school nurse to report that her preschool-aged child was bitten by a tick during a school outing last week. The mother removed the tick and flushed it down the toilet. What action should the school nurse take?
- A. Refer the mother to the Centers for Disease Control and Prevention.
- B. Report the incident to the school principal.
- C. Culture the bite site when the child returns to school.
- D. Schedule a test for Lyme disease if a rash appears.
Correct answer: D
Rationale: The correct action to take in this situation is to schedule a test for Lyme disease if a rash appears. Lyme disease can be transmitted through tick bites, and a rash is a common early symptom of the disease. Testing for Lyme disease is crucial for timely diagnosis and treatment to prevent complications. Referring the mother to the Centers for Disease Control and Prevention (Choice A) is not necessary at this point, as immediate testing for Lyme disease is more appropriate. Reporting the incident to the school principal (Choice B) is not the most direct action to address the potential health concern. Culturing the bite site when the child returns to school (Choice C) may not be as effective as scheduling a test for Lyme disease if a rash appears, as the latter is a more specific diagnostic measure for Lyme disease.
3. Upon admission to the prenatal clinic, a 23-year-old woman informs the nurse that her last menstrual period began on February 15, and that previously her periods were regular. Her pregnancy test is positive. What is this client's expected date of delivery (EDD)?
- A. November 22.
- B. November 8.
- C. December 22.
- D. October 22.
Correct answer: A
Rationale: To determine the expected date of delivery (EDD) using Nägele's rule, add 7 days to the first day of the last menstrual period (LMP) which is February 15, resulting in February 22. Then, subtract 3 months from February 22, which gives November 22 as the estimated due date.
4. The healthcare provider prescribes Amoxicillin 500mg PO every 8hrs for a child who weighs 22 pounds. The available suspension is labeled Amoxicillin Suspension 250mg/5ml. The recommended maximum dose is 50mg/kg/24hr. How many mL should the nurse administer in a single dose based on the child’s weight?
- A. 10mL
- B. 15mL
- C. 7.5mL
- D. 5mL
Correct answer: A
Rationale: To calculate the dose for the child weighing 22 pounds, first convert the weight to kg: 22 lbs ÷ 2.2 = 10 kg. The maximum dose based on weight would be 10 kg × 50 mg/kg/24hr = 500 mg/24hr. Since the medication is prescribed every 8 hours, the dose for each administration would be 500 mg ÷ 3 doses = 166.67 mg. As the available suspension is 250mg/5ml, the nurse should administer 166.67 mg ÷ 250 mg/mL = 0.67 mL per dose. However, since it's not practical to administer a fraction of a milliliter, the nurse should round up to the nearest appropriate dose, which is 10mL.
5. The client is 30 weeks pregnant and experiencing preterm labor. Which medication should the nurse anticipate administering to promote fetal lung maturity?
- A. Betamethasone (Celestone).
- B. Magnesium sulfate.
- C. Terbutaline (Brethine).
- D. Ampicillin.
Correct answer: A
Rationale: Betamethasone (Celestone) is the medication of choice to promote fetal lung maturity in cases of preterm labor. It helps accelerate surfactant production in the fetal lungs, reducing the risk of respiratory distress syndrome. Administering betamethasone to the mother can improve the baby's lung function and overall outcome if preterm birth occurs. Magnesium sulfate is commonly used to prevent seizures in preeclampsia or eclampsia. Terbutaline is a tocolytic agent used to suppress preterm labor contractions. Ampicillin is an antibiotic used for various bacterial infections but does not promote fetal lung maturity.
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