A client's Alpha-fetoprotein Test (AFP) result is reported as 0.8 MoM.
What does this result suggest?
Normal level of AFP for the given gestational age.
High level of AFP indicating a neural tube defect.
Low level of AFP indicating a potential chromosomal abnormality.
Inconclusive result, requiring further evaluation.
The Correct Answer is A
This result suggests that the baby has a low risk of having a genetic disorder or a neural tube defect.
Choice B is wrong because a high level of AFP indicating a neural tube defect would be greater than 2 MoM.
Choice C is wrong because a low level of AFP indicating a potential chromosomal abnormality would be less than 0.5 MoM.
Choice D is wrong because an inconclusive result, requiring further evaluation, would depend on other factors such as ultrasound findings and maternal age.
MoM stands for multiples of the median, which is a way of comparing the AFP level of a pregnant person to the average level for their gestational age.
Values between 0.5 and 2.49 MoM are considered normal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The baby’s heart beat is audible by a Doppler stethoscope at 12 weeks of pregnancy.
This is a device that uses sound waves to create an image of the baby’s heart and measure its rate and rhythm.
Some possible explanations for the other choices are:
Choice B is wrong because the baby’s sex can not be determined by ultrasound at 8 weeks of pregnancy.
The external genitalia are not fully developed until around 14 to 16 weeks of pregnancy.
Even then, the accuracy of ultrasound depends on factors such as the position of the baby, the quality of the equipment, and the skill of the sonographer.
Choice C is wrong because the baby’s lungs are not fully mature by 24 weeks of pregnancy.
The lungs are one of the last organs to develop in the fetus and they continue to grow and mature until near term.
The production of surfactant, a substance that helps the lungs expand and prevent collapse, begins around 24 weeks but is not sufficient until around 34 to 36 weeks.
Choice D is wrong because the baby’s eyes do not open and close by 16 weeks of pregnancy.
The eyelids are fused together until around 26 to 28 weeks of pregnancy, when they start to open and close periodically.
The baby can also respond to light and dark stimuli around this time.
Correct Answer is A
Explanation
"NST is performed after 28 weeks of gestation or earlier if there are risk factors."12 This statement indicates that the client understands when and why an NST is done.
Choice B is wrong because it describes a reactive NST, not a nonreactive one.
A reactive NST means that the fetal heart rate increases by at least 15 beats per minute for at least 15 seconds twice or more in a 20-minute period.2
Choice C is wrong because it confuses NST with contraction stress test (CST), which requires monitoring uterine contractions.
NST does not involve contractions.2
Choice D is wrong because it describes possible causes of a nonreactive NST, not a reactive one.
A nonreactive NST may indicate fetal hypoxia, distress, sleep, medication effect, or neurological abnormality.2
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