Observation:Prid:Pt:Synv fld:Nom:Gram stain
observation:prid:pt:synv fld:nom:gram stain
Observation:Presence or Identity:To identify measures at a point in time:Synovial fluid (Joint fluid):Nominal:Gram stain
observation:presence or identity:to identify measures at a point in time:synovial fluid (joint fluid):nominal:gram stain