Bedside Aspiration

Procedure

1. Maintain NPO status until decision made to proceed or not with surgery.

2. Send joint fluid.

  • Red Tube: Cell Count

  • Blood Culture Bottle: Aerobic culture

  • If < 36mos: Kingella PCR*

Order "Misc. Referral Lab Test "

  • Test code: 18872

  • Accepted Specimen type: 0.7mL synovial fluid in a leak-proof container

  • Performing Lab: Quest

  • Test name: Kingella kingae DNA, Qualitative, real-time PCR

3. Is aspiration consistent with septic arthritis?

  • WBC >50,000/mm³

  • 75% neutrophils

  • Glucose <50 mg/dL