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. 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. Insulin therapy is initiated for a 12-year-old child who is admitted with diabetic ketoacidosis (DKA). Which action is most important for the nurse to include in the child’s plan of care?
- A. Monitor serum glucose for adjustment in the infusion rate of regular insulin (Novolin R).
- B. Determine the child’s compliance schedule for subcutaneous NPH insulin (Humulin N).
- C. Demonstrate to the parents how to program an insulin pen for daily glucose regulation.
- D. Consult with the healthcare provider about the use of insulin detemir (Levemir Flex Pen).
Correct answer: A
Rationale: In managing diabetic ketoacidosis (DKA), monitoring serum glucose levels is crucial to adjust the infusion rate of regular insulin effectively. This helps in controlling blood glucose levels and preventing complications associated with DKA. Close monitoring and adjustments based on glucose levels are essential for the successful management of DKA. Choice B is incorrect as it focuses on a different type of insulin and compliance schedule without addressing the immediate needs of managing DKA. Choice C is not the priority action and involves educating parents on a different method of insulin administration. Choice D is also not the most important action as it suggests consulting with the healthcare provider about a different type of insulin rather than focusing on immediate glucose monitoring for insulin adjustment in DKA management.
4. 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.
5. A couple has been trying to conceive for nine months without success. Which information obtained from the clients is most likely to have an impact on the couple's ability to conceive a child?
- A. Both partners have a daily exercise regimen that includes running four miles each morning.
- B. The couple has a history of having sexual intercourse 2 to 3 times per week.
- C. The woman's menstrual period occurs every 35 days.
- D. They use lubricants with each sexual encounter to decrease friction.
Correct answer: D
Rationale: Using lubricants during sexual encounters can potentially impact the couple's ability to conceive a child. Some lubricants may contain substances that are spermicidal or alter the vaginal environment, affecting sperm motility and fertility.
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