Which is the major advantage of chorionic villus sampling over ...

[kfurse]

Which is the major advantage of chorionic villus sampling over amniocentesis?
 
  a. It is not an invasive procedure.
  b. It does not require a hospital setting.
  c. It requires less time to obtain results.
  d. It has less risk of spontaneous abortion.

Question 2

What is the purpose of initiating contractions in a contraction stress test (CST)?
 
  a. Increase placental blood flow.
  b. Identify fetal acceleration patterns.
  c. Determine the degree of fetal activity.
  d. Apply a stressful stimulus to the fetus.

[xthemafja]

Answer to Question 1

ANS: C
Results from chorionic villus sampling can be known within 24 to 48 hours, whereas results from amniocentesis require 2 to 4 weeks. It is an invasive procedure. The woman has to be in a hospital setting for her and the fetus to be properly assessed during and after the procedure. The risk of an abortion is at the same level for both procedures.

Answer to Question 2

ANS: D
The CST involves recording the response of the fetal heart rate to stress induced by uterine contractions. The CST records the fetal response to stress. It does not increase placental blood flow. The NST looks at fetal heart accelerations with fetal movements. The NST and biophysical profiles look at fetal movements.