When Is Amniocentesis Usually Performed

question 55

Multiple Choice

When is amniocentesis usually performed?

• A) at 6-8 weeks
• B) at 9-12 weeks
• C) at 14-16 weeks
• D) at 20-23 weeks

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Definitions:

Synapse

The junction between neurons through which they communicate with each other, transferring information via chemical or electrical signals.

Chemical Reactions

Processes that involve the rearrangement of atomic or molecular structures to form new substances.

Adenosine

A nucleoside that plays a role in biochemical processes, such as energy transfer and signal transduction in the form of ATP and cAMP.

Chemical Induction

The initiation or increase of a process or action in a biological system by a chemical substance.