A nurse is reviewing the contraindications for a Contraction Stress Test (CST) with a pregnant client.
Which condition would be a contraindication for the test?
Gestational diabetes.
Mild preeclampsia.
Preterm labor.
Ruptured membranes.
The Correct Answer is D
This is a contraindication for the Contraction Stress Test (CST) because it increases the risk of infection and umbilical cord prolapse.
A CST is a test that measures the baby’s heart rate during uterine contractions induced by oxytocin or nipple stimulation.
Choice A is wrong because gestational diabetes is not a contraindication for the CST.
It is a condition that affects how the body processes glucose during pregnancy and may cause complications such as macrosomia (large baby), hypoglycemia (low blood sugar) or preeclampsia (high blood pressure and protein in urine).
Choice B is wrong because mild preeclampsia is not a contraindication for the CST.
It is a condition that causes high blood pressure and protein in urine after 20 weeks of pregnancy and may affect the placenta, kidneys, liver or brain.
Choice C is wrong because preterm labor is a relative contraindication for the CST, not an absolute one.
It means that the test may be performed if the benefits outweigh the risks, but it should be avoided if possible because it may trigger early labor or delivery.
Preterm labor is defined as regular uterine contractions with cervical changes before 37 weeks of pregnancy.
Normal ranges for blood pressure are below 120/80 mmHg, for glucose are 70-100 mg/dL (fasting) or below 140 mg/dL (2 hours after eating), and for protein in urine are less than 300 mg/24 hours.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Normal level of AFP for the given gestational age.
AFP is a protein that the liver makes when its cells are growing and dividing to make new cells.
It is normally high in unborn babies and drops very low after birth.
The AFP test measures the amount of AFP present in blood and can help diagnose certain types of cancer and check how well treatment is working.
It can also help detect some birth defects in pregnant women.
Choice B is wrong because high level of AFP indicating a neural tube defect.
Neural tube defects are abnormalities that affect the brain and spinal cord of the fetus.
They can cause spina bifida, which is a condition where the spine does not close properly.
High levels of AFP can be a sign of neural tube defects, but they can also be caused by other factors, such as multiple pregnancies, inaccurate dating of pregnancy, or fetal death.
Choice C is wrong because low level of AFP indicating a chromosomal abnormality.
Chromosomal abnormalities are genetic disorders that affect the number or structure of chromosomes in the fetus.
They can cause Down syndrome, which is a condition where the fetus has an extra copy of chromosome 212.
Low levels of AFP can be a sign of chromosomal abnormalities, but they can also be caused by other factors, such as inaccurate dating of pregnancy, fetal death, or maternal obesity.
Choice D is wrong because inconclusive result, requiring further evaluation.
An inconclusive result means that the AFP level is neither too high nor too low to indicate a problem with the fetus.
It does not necessarily mean that there is something wrong with the fetus, but it may require further testing to confirm or rule out any abnormalities.
Normal ranges for AFP levels vary depending on the gestational age and the laboratory that performs the test.
Generally, the normal range for AFP levels in pregnant
Correct Answer is B
Explanation
A low level of AFP (<0.5 MoM) in a pregnant woman can indicate that the fetus has a chromosomal abnormality, such as Down syndrome or Edwards syndrome.
This is because these conditions affect the development of the fetal liver, which produces AFP.
Choice A is wrong because neural tube defects, such as spina bifida, are associated with high levels of AFP (>2.5 MoM) in the maternal blood.
This is because AFP can leak from the open spinal canal of the fetus into the amniotic fluid and then into the maternal blood.
Choice C is wrong because maternal weight-related factors do not affect the level of AFP in the maternal blood.
However, they can affect the interpretation of the AFP test results, as the test needs to be adjusted for maternal weight, age, ethnicity, and gestational age.
Choice D is wrong because fetal demise (death) can also cause high levels of AFP in the maternal blood, as the AFP from the dead fetus can leak into the amniotic fluid and then into the maternal blood.
Normal ranges of AFP in pregnant women vary depending on the gestational age and the method of measurement.
Generally, normal levels of AFP are below 10 ng/ml in nonpregnant adults and below 2.5 MoM in pregnant women.
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