Ver el código de «Template:Arthrocentesis diagnostic chart»

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===[[Special:MyLanguage/Arthrocentesis|Arthrocentesis]] of synoval fluid=== <!--T:1-->

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{| class="wikitable"
|-
| '''Synovium'''
| '''Normal'''
| '''Noninflammatory'''
| '''Inflammatory'''
| '''[[Special:MyLanguage/Septic Arthritis (General)|Septic]]'''
|-
| Clarity 
| Transparent 
| Transparent 
| Cloudy 
| Cloudy
|-
| Color 
| Clear 
| Yellow 
| Yellow 
| Yellow
|-
| WBC 
| &lt;200 
| &lt;200-2000 
| 200-50,000 
| 
&gt;'''1,100 (prosthetic joint)'''

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&gt;25,000; LR=2.9

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&gt;50,000; LR=7.7

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&gt;100,000; LR=28

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|-
| PMN 
| &lt;25% 
| &lt;25% 
| &gt;50% 
| 
&gt;64% (prosthetic joint)

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&gt;90%

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|-
| Culture 
| Neg 
| Neg 
| Neg 
| &gt;50% positive
|-
| Lactate
| &lt;5.6 mmol/L
| &lt;5.6 mmol/L
| &lt;5.6 mmol/L
| &gt;5.6 mmol/L
|-
| LDH
| &lt;250
| &lt;250
| &lt;250
| &gt;250
|-
| Crystals 
| None 
| None 
| Multiple or none 
| None
|}
*Viscosity of synovial fluid may actually be decreased in inflammatory or infectious etiologies, as hyaluronic acid concentrations decrease
*The presence of crystals does not rule out septic arthritis; however, the diagnosis is highly unlikely with synovial WBC < 50,000<ref>Shah K, Spear J, Nathanson LA, Mccauley J, Edlow JA. Does the presence of crystal arthritis rule out septic arthritis?. J Emerg Med. 2007;32(1):23-6.</ref>
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