HESI RN
HESI Maternity Test Bank
1. When should the LPN/LVN encourage the laboring client to begin pushing?
- A. When there is only an anterior or posterior lip of the cervix left.
- B. When the client describes the need to have a bowel movement.
- C. When the cervix is completely dilated.
- D. When the cervix is completely effaced.
Correct answer: C
Rationale: The LPN/LVN should encourage the laboring client to begin pushing when the cervix is completely dilated to 10 centimeters. Pushing before full dilation can lead to cervical injury and ineffective labor progress. By waiting for complete dilation, the client can push effectively, aiding in the descent of the baby through the birth canal. Choices A, B, and D are incorrect because pushing before complete dilation can be harmful and may not effectively help in the descent of the baby. The presence of an anterior or posterior lip of the cervix, the urge to have a bowel movement, or complete effacement of the cervix are not indicators for the initiation of pushing during labor.
2. When counseling a couple seeking information about conceiving, the LPN/LVN should know that ovulation usually occurs
- A. two weeks before menstruation.
- B. immediately after menstruation.
- C. immediately before menstruation.
- D. three weeks before menstruation.
Correct answer: A
Rationale: Ovulation typically occurs about 14 days before the start of the next menstrual period. This timing allows for the released egg to travel down the fallopian tube where it may be fertilized by sperm, leading to conception. Understanding the timing of ovulation is crucial for couples trying to conceive to increase their chances of success.
3. A client with no prenatal care arrives at the labor unit screaming, 'The baby is coming!' The nurse performs a vaginal examination that reveals the cervix is 3 centimeters dilated and 75% effaced. What additional information is most important for the LPN/LVN to obtain?
- A. Gravidity and parity.
- B. Time and amount of last oral intake.
- C. Date of last normal menstrual period.
- D. Frequency and intensity of contractions.
Correct answer: C
Rationale: Obtaining the date of the last normal menstrual period is crucial in estimating the gestational age of the fetus. This information helps in determining the progression of labor and the management of delivery. It also assists healthcare providers in assessing the overall health of the mother and the fetus. Choices A, B, and D are important in labor assessment, but in this scenario, the most crucial information needed is the date of the last normal menstrual period to estimate the gestational age.
4. The healthcare provider notes on the fetal monitor that a laboring client has a variable deceleration. Which action should the healthcare provider implement first?
- A. Assess cervical dilation.
- B. Change the client's position.
- C. Administer oxygen via facemask.
- D. Turn off the oxytocin infusion.
Correct answer: B
Rationale: Changing the client's position is the priority intervention for variable decelerations as it can relieve pressure on the umbilical cord, potentially resolving the deceleration and improving fetal oxygenation. Assessing cervical dilation, administering oxygen via facemask, and turning off the oxytocin infusion are important interventions but addressing the fetal distress caused by variable decelerations takes precedence.
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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