Posted Date
Effective Date
Test Name Hydroxychloroquine
Update Type Reference range changed
CPT Code 80375
Order Code HCQ
Referral Laboratory Mayo Medical Laboratories

Effective May 28, 2020. MLabs will be changing the reference range for Hydroxychloroquine (HCQ) per Mayo Medical Laboratories

 

Current Reference Range

 

New Reference Range

 

For suppressive treatment of malaria, suggested plasma or serum concentrations should be >10 ng/mL.

 

For systemic lupus erythematosus, proposed blood target concentrations should be 1000 ng/mL.

 

 

 

 

For suppressive treatment of malaria, suggested plasma or serum concentrations should be >10 ng/mL.

 

For systemic lupus erythematosus, proposed serum target concentrations should be > or = 500 ng/mL.