Centesis may be defined as the act of puncturing a body cavity or space with a hollow needle and drawing out fluid. Each centesis procedure involves both a puncture action and a needle aspiration action. It is correct to have two relationship groups for centesis procedures.
One group has a Method (attribute) of Puncture - action (qualifier value) and a Procedure site - Direct (attribute) of the structure being punctured.
For example,
- 91602002 |Thoracentesis (procedure)| has Procedure site - Direct (attribute) of Pleural membrane structure (body structure)
The second group has a Method (attribute) of Aspiration - action (qualifier value) and a Procedure site - Indirect (attribute) of the space being aspirated.
For example,
- 91602002 |Thoracentesis (procedure)| has Procedure site - Indirect (attribute) of Pleural cavity structure (body structure)
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