Diagnostics Questions
And Answers Updated
2026
WhatBareBtheBconditionsBthatBbenefitBfromBarthrocentesis/jointBinjection?B-
BAnswerBAdhesiveBcapsulitisB(frozenBshoulder)
Arthritis:BOsteo,BRheumatoidB&BCrystalBinduced
Bursitis
CarpalBtunnel
SeronegativeBspondyloarthropathiesB(AnkylosingBspondylitis,BPsoriaticBarthritis,BInflamm
atoryBbowelBdiseaseBassociatedBarthritis.BReactiveBarthritisBTenosynovitis/tendinitis
TendinosisBorBtenosynovitisB(PlantarBfasciitis,BtennisBelbow,BbicepBtenosynovitis)B-`
WhatBareBtheBtwoBmainBreasonsBforBjointBinjection?B-BAnswerB1-aspirationBofBfluid
2-injectionBofBmedications
WhatBisBtheBpurposeBofBarthrocentesis/aspiration?B-BAnswerB1-
aspirateBasBmuchBfluidBasBpossible
2-r/oBsepticBarthritis
3-analyzeBfluid
IfBsynovialBfluidBresultedBwithBaBnegativeBG/SBandBCX,BcouldBitBstillBbeBsepticBarthriti
s?B-BAnswerBYes
SynovialBfluidBwithBaBWBC>50,000:B-BAnswerBTXBforBsepticBarthritis
SynovialBfluidBwithBaBWBCB<50,000BandBcrystals:B-BAnswerBgoutBorBpseudogout
, SynovialBfluidBwithBaBWBCB<50,000BandBnoBcrystals:B-BAnswerBRA
SynovialBfluidBwithBaBWBCB<4,000:B-BAnswerBOA
WhatBareBtheBabsoluteBcontraindicationsBtoBarthrocentesis?B-
BAnswerBuncooperativeBpatient
allergyBtoBanesthesia
noBconsent
infectedBtissues
WhatBareBtheBrelativeBcontraindicationsBtoBarthrocentesis?B-
BAnswerBcoagulationBdisorders
bacteremia
previousBjointBreplacementBsite
excessiveBanxiety
adjacentBosteomyelitis
overlyingBcellulitisBorBdermatitis
debilitatingBdiseases,BsuchBasBDM
injectionBnearBcriticalBstructures
tendinopathies
hxBofBavascularBnecrosis
moreBthanB3BpreviousBsteroidBinjectionsBinBaBmajorBweightBbearingBjointBw/nBtheBpr
ecedingByear
concernBforBactivationBofBaBlatentBdisease
WhatBareBtheBcomplicationsBrelatedBtoBarthrocentesis?B-BAnswerBhematoma
intravascularBinjection
iatrogenicBinfectionBwithBpoorBsterileBtechnique