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Calculating the tidal volume ATPS (L)

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    ReputationRep:
    If we want to calculate the ATPS, and were given for example that the total volume of expired air (L) was 30.6 L provided that the air was collected over an interval of 3-minutes, will ATPS in this case be: 30.6 L / 3 min = 10.2 ?

    Thanks.
  2. Offline

    ReputationRep:
    If we have the following values:

    - Number of breaths in one-minute = 16
    - Exhaled minute volume ATPS (L min-1) = 5.50

    Will the tidal volume ATPS (L) be ---> 5.50 / 16 = 0.34 ?

    Thanks.
  3. Offline

    ReputationRep:
    If we were given the following values:

    - Oxygen concentration of expired air = 16.7%
    - Exhaled minute volume ATPS (L min-1) = 5.67

    And, want to calculate the "Oxygen exhalation rate ATPS (ml min-1)", would it be as follows?

    5.67 X 16.7% = 0.95

    But, since the value has to be in (ml min-1), we should multiply by 1000, so, the final result will be 950 ml min-1

    Is it correct this way?

    Thanks.

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