Cellulitis and the role of laboratory

Clinical Scenario

A 72 y/o woman presented to the ED for swollen and painful leg.

Physical examination shows an erythematous, tender and warm leg. 

Probably it is a cellulitis. 

In previous post we stressed the US use to increase diagnostic accuracy. 

Can WBC or CPR help in the differential diagnoses?  

Do they have a role in the decision to admit the patient to the Hospital?  

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Is CRP correlated to CT result in the evaluation of abdominal pain?

A 74 yo/man complained of diffuse abdominal pain. The pain was intermittent and accompained by vomiting. He has no history of abdominal pain or abdominal surgery.

On examinations the patient presented non icteric, afebrile, not tachicardic. 

The abdomen was mildly distensed with midline tenderness. 

The US evidenced a normal aorta diameter. 

Abdominal x ray showed non specific bowel gas pattern. 

CRP value was 7 mg/L.

The radiologist says it is a little value to perform an abdominal CT, we see tomorrow…..

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