HESI RN
HESI Maternity 55 Questions Quizlet
1. A client at 32 weeks gestation is hospitalized with severe pregnancy-induced hypertension (PIH), and magnesium sulfate is prescribed to control the symptoms. Which assessment finding indicates the therapeutic drug level has been achieved?
- A. 4+ reflexes
- B. Urinary output of 50 ml per hour
- C. A decrease in respiratory rate from 24 to 16
- D. A decreased body temperature
Correct answer: C
Rationale: A decrease in respiratory rate from 24 to 16 indicates that magnesium sulfate is effectively reducing central nervous system irritability, a desired therapeutic effect. This decrease in respiratory rate signifies that the drug has reached a therapeutic level to control symptoms of severe pregnancy-induced hypertension. Choices A, B, and D are incorrect because 4+ reflexes, urinary output, and body temperature are not direct indicators of achieving a therapeutic level of magnesium sulfate for controlling PIH symptoms.
2. In assessing a 9-year-old boy admitted to the hospital with possible acute post-streptococcal glomerulonephritis (APSGN), what information is most significant to obtain in his history?
- A. Back pain for a few days
- B. A history of hypertension
- C. A sore throat last week
- D. Diuresis during the nights
Correct answer: C
Rationale: A recent sore throat is most significant in this case as it could indicate a preceding streptococcal infection, which is a crucial factor in diagnosing APSGN. Streptococcal infection often precedes APSGN, and recognizing this history is essential for appropriate management and treatment. Choices A, B, and D are less relevant in the context of APSGN. Back pain and diuresis are symptoms that may not directly correlate with APSGN, while a history of hypertension, although important in general health assessment, is not as specific to the current scenario compared to a recent sore throat.
3. 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.
4. A client who is receiving oxytocin to augment early labor begins to experience tachysystolic tetanic contractions with variable fetal heart decelerations. Which action should the nurse implement?
- A. Turn off the oxytocin infusion.
- B. Reposition the fetal monitor transducers.
- C. Decrease the rate of the oxytocin infusion.
- D. Alert the charge nurse about the patient's condition.
Correct answer: A
Rationale: When a client experiences tachysystolic tetanic contractions with variable fetal heart decelerations, indicating uterine hyperstimulation, the priority action is to turn off the oxytocin infusion. This step aims to reduce uterine activity, which can compromise fetal oxygenation and lead to adverse outcomes.
5. During a prenatal visit, the nurse discusses with a client the effects of smoking on the fetus. When compared with nonsmokers, mothers who smoke during pregnancy tend to produce infants who have
- A. lower Apgar scores.
- B. lower birth weights.
- C. respiratory distress.
- D. a higher rate of congenital anomalies.
Correct answer: B
Rationale: Smoking during pregnancy is associated with intrauterine growth restriction, leading to lower birth weights. This occurs due to the harmful effects of smoking on fetal development, which can result in reduced nutrient and oxygen supply to the fetus, impacting its overall growth and leading to lower birth weights. Choices A, C, and D are incorrect as smoking during pregnancy primarily affects fetal growth and development, leading to lower birth weights rather than lower Apgar scores, respiratory distress, or a higher rate of congenital anomalies.
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