AskDrKK: What are the lab abnormalities in drug fever?

Dr KK Answers:

1.    The white blood cell count can be elevated with accompanying eosinophilia

2.    The ESR is usually increased

3.    Liver and renal dysfunction

4.    Urine can be checked for eosinophils especially in interstitial nephritis caused by beta-lactam antibiotics.

Dr KK Answers: What is hyper Eosinophilia?

The term refers to Eosinophilia count of more than 1500 Cells/microL. It can be associated with organ damage.

Dr KK Answers: What is Eosinophilia?

A value of more than 500 Eosinophilic ells/microL blood means Eosinophilia. The degree of Eosinophilia can be mild (500-1500 cells/microL), moderate (1500-5000 cells/microL) or severe (more than 5000 cells/microL)