400 South Clark Street, Butte, MT 59701-2328      406-723-2500
St. James Healthcare
 
 
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Laboratory Critical Values

HIGH
TOXICOLOGY    
Acetaminophen (Tylenol)   >25 mcg/ml
Carbamezepine   >12 mcg/ml
Cortisol <2.0 mcg/dl  
Digoxin    >2.0 ng/ml
Gentamicin   >2mcg/ml (trough)
Peak: dosing interval dependent
Lithium   >1.2 mEq/L
Phenobarbital   >50 mcg/ml
Phenytoin (Dilantin)   >50 mcg/ml
Salicylate   >20 mcg/ml
Theophylline   >20 mc g/ml
 
Valproic Acid
  >200 mcg/ml (children)
>110 mcg/ml (adult)
Vancomycin   >25 mcg/ml (trough)



 
 
 
 
 

 


 




 

 
 
 

 

 

 



BLOOD BANK

Positive DAT and /or Indirect Coombs
Positive DAT in previously transfused patient
Positive DAT in newborn
Positive Prenatal Antibody Screen

MICROBIOLOGY

Positive Blood Cultures
Positive CSF Gram Stain
Positive Cryptococcal Antigen
Positive AFB Smear
Yeast on an Abdominal Source
Vancomycin Resistant Enterococci
Methicillin Resistant Staph Aureus

Strep Pneumo UA Ag

Legionella UA Ag