A 26-year-old, 6'6, 250 lb male patient, is still under the ...

[cdr_15]

A 26-year-old, 6'6, 250 lb male patient, is still under the effects of anesthesia following knee surgery. His body temperature is 37 C. He has no history of lung disease.
 
  The appropriate initial minute ventilation for this patient is which of the following?
  a. 8.9 L/min
  b. 9.7 L/min
  c. 11.4 L/min
  d. 13.6 L/min

Question 2

A 47-year-old, 5'6, 112 lb female patient, is still under the effects of anesthesia following a hys-terectomy. Her body temperature is 37 C. She has no history of lung disease.
 
  The appropriate initial minute ventilation for this patient is which of the following?
  a. 5.1 L/min
  b. 6.1 L/min
  c. 11.2 L/min
  d. 13.5 L/min

[mcabuhat]

Answer to Question 1

ANS: B
First calculate ideal body weight (IBW) for a male, using the formula 106 + 6(ht  60). This pa-tient's IBW is 97 kg. Minute ventilation is about 100 mL/kg IBW, which would be 97,000 mL/min or 9.7 L/min.

Answer to Question 2

ANS: B
First calculate ideal body weight (IBW) for a female, using the formula 105 + 5(ht  60). This patient's IBW is 51 kg. Minute ventilation is about 100 mL/kg IBW, which would be 51,000 mL/min or 5.1 L/min.