A pregnant client is at the prenatal clinic for a fetal nuchal translucency test.
What does the nurse understand about this test?
It’s a screening test for trisomy 21.
It’s a diagnostic test for neural tube defects.
It’s only available in the second trimester.
It’s considered normal when greater than 3mm.
It’s considered normal when greater than 3mm.
The Correct Answer is A
Choice A rationale:
Trisomy 21, also known as Down syndrome, is a genetic condition caused by the presence of an extra copy of chromosome 21.
The nuchal translucency test (NT) is a non-invasive ultrasound screening test that measures the thickness of the fluid-filled space at the back of a developing baby's neck.
Evidence suggests that fetuses with Down syndrome tend to have increased fluid accumulation in this area, resulting in a larger-than-average nuchal translucency measurement.
Therefore, an increased NT measurement can be a marker for an increased risk of Down syndrome.
It's important to emphasize that the NT test is a screening tool, not a diagnostic test.
This means it can only indicate an increased risk of Down syndrome; it cannot definitively diagnose the condition.
To confirm a diagnosis, further testing, such as chorionic villus sampling (CVS) or amniocentesis, is required.
Choice B rationale:
Neural tube defects (NTDs) are birth defects that affect the brain, spine, or spinal cord.
The most common NTDs are spina bifida and anencephaly.
The NT test is not a diagnostic test for NTDs, although it might detect some cases of open spina bifida.
However, it's not specifically designed for this purpose, and other tests, such as alpha-fetoprotein (AFP) screening or detailed ultrasound, are more reliable for diagnosing NTDs.
Choice C rationale:
The NT test is typically performed in the first trimester of pregnancy, between 11 and 14 weeks gestation.
It's not available in the second trimester because the nuchal translucency measurement becomes less reliable after this point in pregnancy.
Choice D rationale:
A nuchal translucency measurement of 3mm or less is generally considered normal.
Measurements greater than 3mm are associated with an increased risk of Down syndrome and other chromosomal abnormalities.
The higher the measurement, the greater the risk.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Visceral pain arises from the internal organs and is often described as dull, aching, cramping, or squeezing. During the first stage of labor, the uterus contracts forcefully to dilate the cervix and move the baby down the birth canal. This stretching and pressure on the uterus, cervix, and other pelvic organs stimulate pain receptors, resulting in visceral pain. This pain is typically located in the lower abdomen, back, and groin.
Key points about visceral pain in the first stage of labor:
It's often described as dull, aching, cramping, or squeezing.
It's caused by the stretching and pressure on the uterus, cervix, and other pelvic organs.
It's typically located in the lower abdomen, back, and groin.
It can be intermittent or continuous.
It can vary in intensity from mild to severe.
It's often accompanied by other symptoms such as nausea, vomiting, sweating, and anxiety.
Choice B rationale:
Referred pain is pain that is felt in a different location from the source of the pain. It's not typically associated with the first stage of labor.
Choice C rationale:
Somatic pain arises from the skin, muscles, bones, and joints. It's often described as sharp, stabbing, burning, or throbbing. The somatic pain of the second stage of labor is caused by the stretching and distension of the perineum and vagina as the baby descends. It's typically located in the lower back, buttocks, and thighs.
Choice D rationale:
Pain during the third stage of labor is typically mild compared to the first and second stages. It's caused by the contractions of the uterus as it expels the placenta. It's usually located in the lower abdomen and may be accompanied by a feeling of pressure or fullness.
Correct Answer is B
Explanation
Choice A rationale:
While non-pharmacologic methods can promote relaxation and coping, they may not guarantee full alertness at all times.
The intensity of labor pain can vary significantly, and even non-pharmacologic methods may not completely prevent fatigue or exhaustion.
Factors such as prolonged labor, anxiety, or discomfort can still impact alertness.
Choice C rationale:
Non-pharmacologic methods often provide significant pain relief, but they may not achieve the same degree of pain control as pharmacologic options like epidural analgesia.
The level of pain relief experienced with non-pharmacologic methods can depend on individual factors, preferences, and the specific techniques used.
Choice D rationale:
While relaxation and reduced anxiety can sometimes contribute to a more efficient labor, there's no guarantee that nonpharmacologic methods will consistently lead to a more rapid labor.
The duration of labor is influenced by various factors, including the strength and frequency of contractions, the position of the fetus, and the mother's overall health and preparedness.
Choice B rationale:
Non-pharmacologic pain management techniques do not involve medications or interventions that could potentially have adverse effects on the fetus.
This makes them a safe and desirable option for many pregnant women who are concerned about the potential risks of pharmacologic pain relief.
Common non-pharmacologic techniques include:
Relaxation techniques (deep breathing, guided imagery, meditation)
Hydrotherapy (immersion in water, showers, hot or cold compresses)
Positioning and movement (walking, rocking, changing positions frequently)
Massage and touch therapy
Acupuncture and acupressure
Transcutaneous electrical nerve stimulation (TENS)
Biofeedback
Hypnosis
Continuous labor support (from a doula, partner, or other support person)
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