Search
Lab Questions? Call 617-724-LABS • Full List of TestsAdvanced Search

 
PT-INR
Lab code: INR
 
Test Synonyms:
PT; Prothrombin time; INR; PT-INR
 
Lab:
Core Lab
Inpatient Req:
Core Lab (#84927)  
Outpatient Req:
Clinical Labs (#83608)  
Specimen:
Blue 3 ml
Result Time:
STAT: 1 hour   Cost: $
Reference Interval:
PT ref range (adult): 11.0 - 14.0 sec; INR ref range = 0.9-1.1
Critical value defined. See MGH Critical Values for details.
 
Neonatal/Pediatric:
Neonatal/Pediatric tube: Blue (1.8 ml tube). Fill to fill line on tube.
Special tubes available if hematocrit > 56%