HESI RN
Maternity HESI Quizlet
1. 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.
2. The healthcare provider is preparing to administer phytonadione to a newborn. Which statement made by the parents indicates understanding why the healthcare provider is administering this medication?
- A. Prevent hemorrhagic disorders.
- B. Help an immature liver.
- C. Improve insufficient dietary intake.
- D. Stimulate the immune system.
Correct answer: A
Rationale: The correct answer is A: 'Prevent hemorrhagic disorders.' Phytonadione (vitamin K) is administered to newborns to prevent hemorrhagic disease by promoting blood clotting. Newborns are born with low levels of vitamin K, which is essential for blood clotting, hence the administration to prevent hemorrhagic disorders. Choice B is incorrect because phytonadione is not given to help an immature liver but to supply vitamin K. Choice C is incorrect as phytonadione is not administered to improve dietary intake but to provide essential vitamin K. Choice D is incorrect as phytonadione does not stimulate the immune system but helps with blood clotting.
3. In caring for a 4-year-old boy recently diagnosed with Duchenne muscular dystrophy (DMD), which characteristic of the disease is most important for the nurse to focus on during the initial teaching?
- A. Lower legs become progressively weaker, causing a waddling, unsteady gait.
- B. Growth and development have been abnormal since birth.
- C. Muscular strength can be regained with physical exercise and therapy.
- D. Respiratory dysfunction and aspiration are prime concerns at this stage of the disease.
Correct answer: A
Rationale: In Duchenne muscular dystrophy, a key characteristic is the progressive weakness in the lower legs, leading to a waddling, unsteady gait. The nurse should focus on teaching about this aspect as it helps in understanding the disease's progression and managing the symptoms effectively.
4. The healthcare provider is preparing to administer magnesium sulfate to a laboring client whose blood pressure has increased from 110/60 mmHg to 140/90 mmHg. Which action is the highest priority?
- A. Provide a quiet environment with subdued lighting.
- B. Have calcium gluconate immediately available.
- C. Assess deep tendon reflexes (DTRs) every 4 hours.
- D. Insert a Foley catheter with a urimeter to monitor hourly output.
Correct answer: B
Rationale: Having calcium gluconate readily available is crucial when administering magnesium sulfate, as it serves as the antidote in case of magnesium toxicity. Magnesium sulfate can lead to respiratory depression and cardiac arrest in cases of overdose or toxicity, making the prompt availability of calcium gluconate essential for immediate administration to counteract these effects. Providing a quiet environment with subdued lighting may be beneficial for the client's comfort but is not the highest priority in this situation. Assessing deep tendon reflexes every 4 hours is important when administering magnesium sulfate, but it is not the highest priority compared to having calcium gluconate available. Inserting a Foley catheter with a urimeter to monitor hourly output is not the highest priority when preparing to administer magnesium sulfate in this scenario.
5. A client in active labor is admitted with preeclampsia. Which assessment finding is most significant in planning this client's care?
- A. Patellar reflex 4+
- B. Blood pressure 158/80
- C. Four-hour urine output 240 ml
- D. Respirations 12/minute
Correct answer: A
Rationale: The correct answer is A: 'Patellar reflex 4+'. Hyperreflexia is a sign of severe preeclampsia and increases the risk of seizures, indicating the need for immediate intervention. Monitoring and addressing this finding are crucial in managing the client's condition and preventing complications.
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