Dear Sara
yes, some institutions have both, sometimes not all Lab Admin. know enough 
about
Pathology(Histo) especially,but work well together. An AP manager usally is 
responsible for cytology(sometimes not always) and Histology and perhaps 
various site(surgi centers) that procure tissues.They use these numbers for 
better pricing, one person handles all personell records, correlation of 
data, even transcription employees.The lab administrator handles all 
Supervisors, Managers, and deals with upper echelon in the hospital, they 
also handle procurement of large ticket items , like Chemistry Equip,etc.     
         Dana