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Calculator: Predicted postoperative FEV1 following lung resection surgery (anatomic method) in adults


Calculator: Predicted postoperative FEV1 following lung resection surgery (anatomic method) in adults

 
Input
 
Preoperative FEV1   Liters
Y  
Z  

 
Result
 
Important: Inputs must be complete to perform calculation.

 
 
Predicted postoperative FEV1   Liters
 
Decimal precision  

 
 

 
Notes
  • FEV1: forced expiratory volume at one second; Y: the number of functional or unobstructed lung segments to be removed; Z: the total number of functional segments (typically 19).

 
Equations used
 
Predicted postoperative FEV1 = Preoperative FEV1 * (1 - Y/Z)

 

 
Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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Topic 93496 Version 6.0