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NPTE > Cardio-Pulm Systems > Flashcards

Cardio-Pulm Systems Flashcards

1
Q

Functional residual capacity equation:

A

FRC = ERV + RV

ERV: Expiratory Reserve Volume, RV: Residual Volume

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2
Q

Inspiratory capacity equation:

A

IC = TV + IRV

IC: Inspiratory Capacity, TV: Tidal Volume, IRV: Inspiratory Reserve Volume

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3
Q

Total lung capacity equations:

A 
TLC = RV + VC  or TLC = FRC + IC
ERV: Expiratory Reserve Volume
FRC: Functional Residual Capacity
IC: Inspiratory Capacity
IRV: Inspiratory Reserve Volume
RV: Residual Volume
TV: Tidal Volume
VC: Vital Capacity
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4
Q

Vital capacity equation:

A 
VC = TV + IRV + ERV
ERV: Expiratory Reserve Volume
FRC: Functional Residual Capacity
IC: Inspiratory Capacity
IRV: Inspiratory Reserve Volume
RV: Residual Volume
TV: Tidal Volume
VC: Vital Capacity
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5
Q

Inspiratory capacity (IC)

A

The maximal volume of air that can be inspired after a normal tidal exhalation. IC =TV + IRV. Approx. 60% of TLV.

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6
Q

Functional residual capacity (FRC)

A

The volume of air in the lungs after normal exhalation. FRC = ERV + RV. Approx. 40% of TLV.

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7
Q

Expiratory reserve volume (ERV)

A

The maximal volume of air that can be exhaled after a normal tidal exhalation. Approximately 15% of TLV.

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8
Q

Vital capacity (VC)

A

The volume change that occurs between maximal inspiration and maximal expiration. Approx 75% of TLV. VC = TV + IRV + ERV.

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9
Q

Total lung capacity (TLC)

A

the volume of air in the lungs after a max inspiration; the sum of all lung volumes. TLC = RV + VC, or TLC = FRC + IC.

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10
Q

Residual volume (RV)

A

The volume of gas remaining in the lungs at the end of a max expiration. Approx. 25% of TLV

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11
Q

Forced vital capacity (FVC)

A

the volume of air expired during a forced max expiration after a forced maximal inspiration.

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12
Q

Tidal volume (TV)

A

Total volume inspired and expired with each breath during quiet breathing. Approx. 10% of TLV.

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13
Q

Anatomic dead space (VD)

A

the volume of air that occupies the non-respiration conducting airways

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14
Q

Inspiratory reserve volume (IRV)

A

The maximal volume of air inspired after normal tidal volume inspiration. Approx. 50% of TLV

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15
Q

Minute volume ventilation (VE)

A

The volume of air expired in one minute. VE = TV x respiratory rate.

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16
Q

Peak expiratory flow (PEF)

A

The max flow of air during the beginning of a forced expiratory maneuver.

NPTE (6 decks)

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