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What is the estimated date of birth (EDB) for a client who is pregnant and whose last menstrual period began on July 27? (State the date in MMDD.
For example, July 27 is 0727)

A.

0427

B.

0503

C.

0603

D.

0527

Answer and Explanation

The Correct Answer is B

To calculate the estimated date of birth (EDB) using the first day of the last menstrual period (LMP), you can use Naegele’s Rule. This rule adds 280 days (or 40 weeks) to the first day of the LMP.

Given the LMP of July 27 (0727):

  1. Add 1 year: July 27, 2023 becomes July 27, 2024.
  2. Add 7 days: July 27, 2024 becomes August 3, 2024.
  3. Subtract 3 months: August 3, 2024 becomes May 3, 2024.

So, the estimated date of birth (EDB) is May 3, 2024 (0503).


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Related Questions

Correct Answer is A

Explanation

Choice A rationale: Uteroplacental insufficiency causes late decelerations due to reduced oxygenation, not mechanical pressure. It reflects placental dysfunction, not direct cranial compression effects.

Choice B rationale: Spontaneous rupture of membranes increases infection and labor risk but does not directly alter cerebral perfusion or trigger vagal responses linked to head compression.

Choice C rationale: Altered fetal cerebral blood flow results from cranial pressure during contractions, triggering vagal stimulation and early decelerations. This is the physiological response to head compression.

Choice D rationale: Umbilical cord compression causes variable decelerations due to transient blood flow obstruction, unrelated to cranial pressure or cerebral perfusion changes.

Correct Answer is C

Explanation

Choice A rationale
The fundus should not be soft or to the right of the umbilicus 12 hours postpartum. A soft or displaced fundus could indicate uterine atony or a full bladder, both of which require intervention.
Choice B rationale
The fundus should not be soft or above the umbilicus 12 hours postpartum. This could indicate uterine atony, which could lead to postpartum hemorrhage.
Choice C rationale
The fundus should be firm and at the level of the umbilicus 12 hours postpartum. This indicates that the uterus is contracting properly to prevent excessive bleeding.
Choice D rationale
The fundus should not be to the left of the umbilicus 12 hours postpartum. This could indicate a full bladder, which can displace the uterus and interfere with uterine contractions

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