A nurse in a prenatal clinic is caring for a client who is pregnant and asks the nurse for her estimated date of birth (EDB). The client's last menstrual period began on July 27. What is the client's EDB? (State the date in MMDD format. For example, July 27 is 0727.)
The Correct Answer is ["0504"]
To calculate the estimated date of birth (EDB), also known as the due date, we use Naegele's Rule, which involves adding one year, subtracting three months, and adding seven days to the first day of the last menstrual period (LMP). Using this rule, if the LMP was on July 27, the EDB would be:
- Add one year: July 27, 2024
- Subtract three months: April 27, 2024
- Add seven days: May 4, 2024
Therefore, the EDB in MMDD format is 0504.
Reason:
Naegele's Rule is a standard way of calculating the due date for a pregnancy. The rule estimates the expected date of delivery (EDD) by adding one year, subtracting three months, and adding seven days to the date of a woman's last menstrual period (LMP). This calculation assumes a regular menstrual cycle of 28 days and ovulation occurring on the 14th day of the cycle. The EDB is typically set at 40 weeks from the LMP, which is approximately 280 days. While this method provides an estimate, only about 4% of births occur on the exact due date, and most births occur within a range of two weeks before or after the estimated due date.
It's important to note that the EDB is an estimate and can be influenced by factors such as the length of menstrual cycles, the exact day of ovulation, and the date of conception. Ultrasounds and other prenatal tests can provide additional information to refine the due date estimate as the pregnancy progresses.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice a reason:
While ultrasound can be used for estimating fetal age, at 36 weeks of gestation, this is not the primary reason for performing an ultrasound before an amniocentesis. Fetal age is usually estimated earlier in the pregnancy to help with dating the pregnancy and determining the due date.
Choice b reason:
Determining if there is more than one fetus is typically established earlier in the pregnancy. By 36 weeks, the presence of multiples would already be known, so this would not be the primary reason for an ultrasound before an amniocentesis at this stage.
Choice c reason:
An ultrasound can be used as a screening tool for spina bifida, but it is not the main reason for an ultrasound before an amniocentesis at 36 weeks. Screening for spina bifida and other anomalies is usually done during the second trimester.
Choice d reason:
The primary reason for an ultrasound before an amniocentesis is to identify the location of the placenta and fetus. This information is crucial to ensure the safety of both the mother and the fetus during the procedure by avoiding injury to the placenta and ensuring the amniotic needle is inserted in a safe location.
Correct Answer is A
Explanation
Choice A reason:
In the case of a client with painless, bright red vaginal bleeding at 38 weeks of gestation, the priority is to stabilize the client's condition. Initiating IV access is crucial as it allows for rapid administration of fluids or blood products to address potential hypovolemia and to prepare for the possibility of an emergency cesarean section if needed. The client's low blood pressure and elevated heart rate suggest that she may be experiencing hypovolemia, which can quickly lead to hypovolemic shock if not treated promptly.
Choice B reason:
While obtaining informed consent is important before any surgical procedure, it is not the immediate priority. The priority is to stabilize the client, and consent can be obtained concurrently with other stabilizing actions or by another member of the healthcare team.
Choice C reason:
Inserting an indwelling urinary catheter is a supportive measure that can be necessary during labor or before surgery to keep the bladder empty, reducing the risk of bladder injury during a cesarean section and monitoring urine output as an indicator of renal perfusion. However, it is not the first priority in the presence of significant vaginal bleeding.
Choice D reason:
Preparing the abdominal and perineal areas is part of the preoperative procedure for a cesarean section. This action would follow after the client has been stabilized and a decision for surgery has been made.
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