The nurse has received a report regarding her patient in labor.
The woman's last vaginal examination was recorded as 3 cm, 30 The nurse's interpretation of this assessment is that.
The cervix is 3 cm dilated, it is effaced 30
The cervix is effaced 3 cm, it is dilated 30
The cervix is dilated 3 cm, it is effaced 30
The cervix is effaced 3 cm, it is dilated 30
The Correct Answer is C
Choice A rationale
The standard documentation for a vaginal examination in labor follows a specific sequence of dilation, effacement, and station. In this scenario, the first number refers to the cervical dilation measured in centimeters. Dilation ranges from 0 cm to 10 cm, representing the opening of the internal os. The second number, 30, represents the percentage of effacement, which is the thinning and shortening of the cervix. Choice A is partially correct but lacks the percentage designation for effacement.
Choice B rationale
This choice incorrectly reverses the clinical definitions of dilation and effacement. Effacement is never measured in centimeters; it is a qualitative assessment of cervical thinning expressed as a percentage from 0 percent to 100 percent. Dilation is the measure of how open the cervix has become, which is correctly represented by centimeters. Reversing these terms leads to a fundamentally flawed interpretation of the progress of labor and the physiological state of the maternal cervix during the first stage.
Choice C rationale
This interpretation correctly identifies that the first digit in the sequence refers to cervical dilation, which is 3 cm. The second digit, 30, refers to the degree of effacement, meaning the cervix has thinned by 30 percent. During the latent phase of labor, the cervix typically begins this process of opening and thinning. Normal dilation progresses to 10 cm for birth, while effacement progresses to 100 percent. This response aligns with standard obstetric reporting and clinical assessment guidelines.
Choice D rationale
Similar to Choice B, this option provides a clinically inaccurate interpretation by assigning centimeters to effacement and a whole number to dilation without proper units. In obstetric practice, 3 cm always refers to the diameter of the cervical opening. Effacement describes the preparation of the lower uterine segment and the shortening of the cervical canal. Using these terms interchangeably or incorrectly can lead to errors in tracking labor progression and determining when a patient has entered the active phase of labor.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Neonatal weight loss is a physiological expectation during the first week of life. Newborns typically lose 5 percent to 10 percent of their birth weight due to the loss of extracellular fluid, meconium passage, and limited initial caloric intake before the mother's mature milk comes in. A 7 percent weight loss at 4 days postpartum is within the normal range. Providing reassurance helps alleviate parental anxiety while documenting the trend ensures proper clinical tracking of growth.
Choice B rationale
Introducing supplemental feedings like formula or water for a 7 percent weight loss is unnecessary and can interfere with the establishment of a successful breastfeeding relationship. Supplementation reduces the infant's demand at the breast, which can lead to a decrease in maternal milk production through the feedback inhibition of lactation. Unless weight loss exceeds 10 percent or there are signs of dehydration, the nurse should encourage frequent, exclusive breastfeeding sessions to ensure adequate intake.
Choice C rationale
While lactation consultants are valuable resources, a 7 percent weight loss on day 4 is a standard physiological occurrence that does not automatically indicate a breastfeeding problem. If the infant is latching well, has audible swallows, and has appropriate voiding and stooling patterns (typically 4 or more voids and 3 or more stools by day 4), a specialist referral is not yet indicated. The primary nurse can provide sufficient guidance on positioning and latch techniques.
Choice D rationale
Reporting this finding to a provider as abnormal would be clinically inaccurate since it falls within the expected 5 percent to 10 percent range for a 4-day-old infant. Healthcare providers monitor weight trends, but 7 percent does not trigger an immediate medical intervention or diagnostic workup for failure to thrive. Over-reporting normal physiological processes can lead to unnecessary medicalization of the postpartum period and cause undue stress for the new parents regarding their infant's health.
Correct Answer is D
Explanation
Choice A rationale
While tracking the frequency and duration of contractions is helpful, it is not the most definitive way to distinguish between true and false labor. Braxton Hicks contractions can also become regular and frequent, especially in late pregnancy. Identifying the pattern is a part of the assessment, but it does not confirm that the physiological process of labor has actually begun, as true labor is strictly defined by the progressive effacement and dilation of the cervix.
Choice B rationale
Bloody show is a premonitory sign of labor caused by the rupture of small capillaries as the cervix begins to soften and thin. However, it can occur days or even weeks before actual labor begins. It can also occur after a vaginal examination. Because it does not guarantee that active labor is currently taking place, it is less useful than confirming cervical change. It remains a subjective finding that requires further clinical correlation to determine labor status.
Choice C rationale
Spontaneous rupture of membranes is a significant event, but it does not always mean that labor has started. In some cases, the membranes rupture before contractions begin, a condition known as premature rupture of membranes. While it necessitates medical evaluation to prevent infection and assess fetal status, it is not the defining characteristic of labor. True labor requires the presence of regular uterine contractions that result in documented, progressive changes to the cervical structure.
Choice D rationale
The most useful and definitive information to determine if a woman is in true labor is whether there has been a change in the cervix. True labor is characterized by regular contractions that increase in intensity and frequency, leading to progressive cervical effacement and dilation. In contrast, false labor or Braxton Hicks contractions do not cause the cervix to change. Asking about recent checks focuses on the primary clinical indicator that separates active labor from pre-labor sensations.
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