A woman who is trying to get pregnant tells the nurse that she was very disappointed several months ago when she was informed that her positive pregnancy test was a false positive. Which method of determining pregnancy provides the greatest degree of accuracy?
Visualization of implantation by vaginal ultrasound.
Maternal blood serum tests positive for alpha-fetoprotein.
Presence of amenorrhea for 2 months.
Reports feeling tired all of the time.
The Correct Answer is A
Choice A rationale
Visualization of implantation by vaginal ultrasound offers the highest accuracy in confirming pregnancy, as it directly visualizes the implanted embryo, eliminating errors associated with biochemical tests.
Choice B rationale
Maternal blood serum tests positive for alpha-fetoprotein do not confirm pregnancy. Alpha-fetoprotein is a marker used primarily for screening fetal abnormalities, not pregnancy determination.
Choice C rationale
The presence of amenorrhea for 2 months can suggest pregnancy but is not definitive due to other potential causes of missed periods, such as hormonal imbalances or stress, reducing its accuracy.
Choice D rationale
Reporting feeling tired all the time is a nonspecific symptom that can result from numerous conditions unrelated to pregnancy, making it an unreliable method for pregnancy determination.
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Related Questions
Correct Answer is C
Explanation
Choice A rationale
The obstetrician follow-up appointment is typically scheduled at 6 weeks postpartum, not 8 weeks. Accurate timing of follow-up visits is crucial for monitoring the mother's health and recovery.
Choice B rationale
While abstaining from sexual activities postpartum is generally advised, it is usually recommended until the 6-week follow-up appointment, not specified by the obstetrician's discretion.
Choice C rationale
Contacting the pediatrician if the baby is not breastfeeding well or has fewer wet diapers and stools is critical for early detection of feeding issues, dehydration, or other health concerns.
Choice D rationale
A lactation nurse visit is beneficial for breastfeeding support but does not cover the broader scope of postpartum care and monitoring the newborn's health. Comprehensive instructions are essential for new mothers.
Correct Answer is A
Explanation
Choice A rationale
Visualization of implantation by vaginal ultrasound offers the highest accuracy in confirming pregnancy, as it directly visualizes the implanted embryo, eliminating errors associated with biochemical tests.
Choice B rationale
Maternal blood serum tests positive for alpha-fetoprotein do not confirm pregnancy. Alpha-fetoprotein is a marker used primarily for screening fetal abnormalities, not pregnancy determination.
Choice C rationale
The presence of amenorrhea for 2 months can suggest pregnancy but is not definitive due to other potential causes of missed periods, such as hormonal imbalances or stress, reducing its accuracy.
Choice D rationale
Reporting feeling tired all the time is a nonspecific symptom that can result from numerous conditions unrelated to pregnancy, making it an unreliable method for pregnancy determination.
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