Pulmonary Assessment Diagnostic Testing

Question 1

what is forced vital capacity (FVC)

Answer 1

volume of air that can be forcibly and maximally exhaled out after a full inhale

Question 2

what is forced expiratory volume (FEV1)

Answer 2

volume of air forcibly exhaled in first second of forced expiratory maneuver

Question 3

an FEV1 value of >2.0 indicates

Answer 3

little to no obstruction

Question 4

an FEV1 value of 1.0 - 2.0 indicates

Answer 4

mild to mod obstruction

Question 5

an FEV1 value of <1.0 indicates

Answer 5

severe obstruction

Question 6

what is the normal percentage of the FEV1/FVC ratio?

Answer 6

75%

Question 7

80-90% of the FEV1/FVC ratio indicates what?

Answer 7

restrictive dysfunction

Question 8

<70% of the FEV1/FVC ratio indicates what?

Answer 8

obstruction

Question 9

what is our LLN value?

Answer 9

70

Question 10

if the measured FEV1 value is ≥ 80% of the predicted, what does that indicate?

Answer 10

mild obstruction

Question 11

if the measured FEV1 value is 50-79% of the predicted, what does that indicate?

Answer 11

moderate obstruction

Question 12

if the measured FEV1 value is 30-49% of the predicted, what does that indicate?

Answer 12

severe obstruction

Question 13

if the measured FEV1 value is <30% of the predicted, what does that indicate?

Answer 13

very severe obstruction

Question 14

how do you determine the severity of restrictive dysfunction?

Answer 14

based on the TLC

Question 15

what indicates a mild restrictive dysfunction?

Answer 15

TLC < LLN by ≥ 70% predicted

Question 16

what indicates a moderate restrictive dysfunction?

Answer 16

TLC <70% and ≥60% predicted

Question 17

what indicates a severe restrictive dysfunction?

Answer 17

TLC < 60% predicted