Which statement describes a preparation requirement for swab testing?

• A. Review PSV-35 with the client
• B. Sign out of UA/Swab container and label with client's name and SID
• C. Preparation - For swab, instruct client, to have no food or drink within 10 minutes of testing
• D. For UA cup-collection, wash hands and adjust clothing before collection

Answer: (C)

The key idea is to ensure the swab sample isn’t contaminated and remains accurate. Instructing the client to have no food or drink within 10 minutes of testing directly affects how clean and reliable the swab specimen will be. Food or drink can leave residues in the mouth or on mucosal surfaces, potentially altering the test result or necessitating a repeat collection. This preparation step helps preserve sample integrity and accuracy.

The other statements aren’t about preparing the swab test itself: reviewing a form or policy touches on procedural briefing, signing and labeling pertains to handling materials, and anything about urine collection describes a different procedure entirely.