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. A 6-week-old infant diagnosed with pyloric stenosis has recently developed projectile vomiting. Which assessment finding indicates to the nurse that the infant is becoming dehydrated?
- A. Weak cry without tears.
- B. Bulging fontanel.
- C. Visible peristaltic wave.
- D. Palpable mass in the right upper quadrant.
Correct answer: A
Rationale: In infants, a weak cry without tears is a classic sign of dehydration. Tears are produced by the lacrimal glands, and reduced tear production is a result of dehydration. This assessment finding should alert the nurse to the infant's dehydration status, requiring prompt intervention to prevent further complications.
3. After two miscarriages, a client is instructed to increase her daily intake of foods that include folic acid. The client does not like green leafy vegetables and states she is allergic to soy. Which food should the nurse suggest that the client eat to obtain folic acid?
- A. Strawberries.
- B. Yogurt.
- C. Collard greens.
- D. Whole milk.
Correct answer: C
Rationale: Collard greens are a good source of folic acid, which is important for preventing neural tube defects, especially in clients with a history of miscarriages. Since the client does not like green leafy vegetables, collard greens could be suggested as an alternative source of folic acid. Yogurt and whole milk do not contain significant amounts of folic acid, and while strawberries are a healthy choice, they are not a high source of folic acid compared to collard greens.
4. The client is 24 hours postpartum and is being discharged. The nurse explains that vaginal discharge will change from red to pink and then to white. If the client starts having red bleeding after the color changes, what should the nurse instruct the client to do?
- A. Reduce activity level and notify the healthcare provider.
- B. Go to bed and assume a knee-chest position.
- C. Massage the uterus and go to the emergency room.
- D. Do not worry as this is a normal occurrence.
Correct answer: A
Rationale: If the client experiences red bleeding after the color changes, it may indicate possible hemorrhage or retained placental fragments, which require immediate attention. Instructing the client to reduce activity level and notify the healthcare provider is crucial for prompt evaluation and management of potential complications.
5. The healthcare provider prescribes magnesium sulfate 6 grams intravenously (IV) to be infused over 20 minutes for a client with preterm labor. The IV bag contains magnesium sulfate 20 grams in dextrose 5% in water 500 mL. How many mL/hour should the nurse set the infusion pump?
- A. 150 mL/hour
- B. 250 mL/hour
- C. 50 mL/hour
- D. 275 mL/hour
Correct answer: A
Rationale: To calculate the infusion rate, first, determine the total volume to be infused (6 grams of magnesium sulfate) over a specific time frame (20 minutes). Then, calculate the concentration of magnesium sulfate in the IV bag to determine the mL/hour rate. The IV bag contains 20 grams of magnesium sulfate in 500 mL of solution, which means there are 4 grams of magnesium sulfate per 100 mL. Since 6 grams are required, the nurse should set the pump to deliver 150 mL/hour to infuse the prescribed dose over 20 minutes. Choice B, 250 mL/hour, is incorrect because it miscalculates the amount of magnesium sulfate infused per hour. Choice C, 50 mL/hour, is incorrect as it is too slow to deliver the required dose in the specified time frame. Choice D, 275 mL/hour, is incorrect as it overestimates the infusion rate and would deliver the dose too quickly.
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