A nurse in a prenatal clinic is caring for a client who asks what her estimated date of delivery will be if her last menstrual period was May 4, 2015. The nurse uses Naegele's Rule to calculate the correct EDD:
April 27, 2016
April 11, 2016
February 27, 2016
February 11, 2016
The Correct Answer is D
The correct answer is: April 11, 2016
Choice A: April 27, 2016
Reason: Using Naegele’s Rule, the estimated date of delivery (EDD) is calculated by adding one year, subtracting three months, and adding seven days to the first day of the last menstrual period (LMP). For an LMP of May 4, 2015:
- Add one year: May 4, 2016
- Subtract three months: February 4, 2016
- Add seven days: February 11, 2016
April 27, 2016, is incorrect because it does not follow the correct calculation steps.
Choice B: April 11, 2016
Reason: Following Naegele’s Rule:
- Add one year: May 4, 2016
- Subtract three months: February 4, 2016
- Add seven days: February 11, 2016
April 11, 2016, is the correct EDD as it accurately follows the calculation steps.
Choice C: February 27, 2016
Reason: This date is incorrect because it does not follow the correct calculation steps of Naegele’s Rule. The correct EDD should be in April, not February.
Choice D: February 11, 2016
Reason: This date is also incorrect. While it follows the initial steps of Naegele’s Rule, it does not account for the full calculation, which should result in an April date, not February.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Incorrect. Weightbearing exercises should be avoided or limited during pregnancy, as they can increase the risk of injury, joint pain, and fatigue.
B. Correct. Moderate exercise can improve circulation, reduce swelling, and prevent varicose veins during pregnancy.
C. Incorrect. Resting for 30 minutes before each new exercise is not necessary and may reduce the benefits of physical activity.
D. Incorrect. Stretching exercises can help prevent muscle cramps, improve flexibility, and reduce back pain during pregnancy.

Correct Answer is C
Explanation
A) Fetal head compression: Fetal head compression would typically result in variable decelerations, not late decelerations.
B) Umbilical cord compression: Umbilical cord compression is associated with variable decelerations, not late decelerations.
C) Uteroplacental insufficiency: Late decelerations occur due to decreased blood flow and oxygen supply to the fetus, which can be caused by uteroplacental insufficiency. This condition can lead to fetal hypoxia during contractions.
D) Maternal bradycardia: Maternal bradycardia would not directly cause late decelerations in the fetal heart rate.
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