How do you judge intraprocedural whether an EBUS-TBNA sample is adequate for molecular testing?
When you get your TBNA sample during the procedure, what cues make you think "this might not be enough for EGFR/ALK/PD-L1 testing"? Is it the ROSE wording, the visible aspirate volume, or some other experience-based judgment? Just trying to gather how people actually make this call in practice.
1 Answer
Mednet MemberInvited Expert
Pulmonology · University of Maryland Medical School
Answered on
There are two things that I take into consideration:
- The amount of core tissue I have in the specimen tube/cytolyte. My goal is to have tissue cover 1/3 to 1/2 of the tapered part of the tube.
- How much blood is mixed with the core? I usually shake the tube prior to evaluation. Blood typically eithe...
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