HESI RN
HESI Maternity 55 Questions Quizlet
1. Using Nägele's rule, what is the estimated date of delivery for a pregnant client who reports that the first day of her last menstrual period was August 2, 2006?
- A. April 25, 2007.
- B. May 9, 2007.
- C. May 29, 2007.
- D. June 2, 2007.
Correct answer: B
Rationale: Nägele's rule is used to estimate the date of delivery. It involves adding 7 days to the first day of the last menstrual period (August 2), which gives August 9. Then, subtracting 3 months from August 9, we arrive at May 9 of the following year as the estimated date of delivery. This makes choice B, 'May 9, 2007,' the correct answer. Choices A, C, and D are incorrect as they do not follow the correct calculation based on Nägele's rule.
2. 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.
3. The LPN/LVN should explain to a 30-year-old gravida client that alpha fetoprotein testing is recommended for which purpose?
- A. Detect cardiovascular disorders.
- B. Screen for neural tube defects.
- C. Monitor placental functioning.
- D. Assess for maternal pre-eclampsia.
Correct answer: B
Rationale: The correct answer is B: Screen for neural tube defects. Alpha fetoprotein testing is primarily used to screen for neural tube defects and other fetal abnormalities. It is not used to detect cardiovascular disorders, monitor placental functioning, or assess for maternal pre-eclampsia.
4. During a routine prenatal health assessment for a client in her third trimester, the client reports that she had fluid leakage on her way to the appointment. Which technique should the nurse implement to evaluate the leakage?
- A. Insert a straight urinary catheter to drain the bladder.
- B. Scan the bladder for urinary retention.
- C. Palpate the suprapubic area for fetal head position.
- D. Test the fluid with a nitrazine strip.
Correct answer: D
Rationale: Testing the fluid with a nitrazine strip is the appropriate technique to differentiate between amniotic fluid and urine. This test helps in determining if the fluid leakage is amniotic fluid, which is crucial for guiding further management and ensuring appropriate care for the client during the third trimester of pregnancy. Inserting a straight urinary catheter to drain the bladder (Choice A) is unnecessary and invasive in this scenario as the concern is fluid leakage, not urinary retention. Scanning the bladder for urinary retention (Choice B) is also not indicated since the client reported fluid leakage, not retention. Palpating the suprapubic area for fetal head position (Choice C) is unrelated to assessing fluid leakage and not the appropriate technique in this situation.
5. The healthcare provider is reviewing the serum laboratory findings for a 5-day-old infant with congenital adrenal hyperplasia. Which laboratory result should be reported to the healthcare provider immediately?
- A. Bilirubin of 1.5 mg/dl.
- B. Glucose of 80 mg/dl.
- C. Potassium of 4.5 mEq/L.
- D. Sodium of 119 mEq/L.
Correct answer: D
Rationale: Low sodium levels in congenital adrenal hyperplasia can indicate salt-wasting crisis, which is a life-threatening emergency requiring immediate medical attention. Monitoring sodium levels is crucial to prevent complications such as dehydration and shock in these patients.
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