Labs - Pulmonary

Question 1

Arterial Blood Gas Assessment

Answer 1

1) identify pH
2) Detn direction of PaCO2
3) Detn direction of bicarbonate
4) identify primary disorder - match pH shift with PaCO2 or bicarbonate
5) identify if there’s compensation/opposing pH

Question 2

PaCO2

Answer 2

acid - respiratory, increases –> acidic, decreases –> basic

Question 3

Bicarbonate

Answer 3

base - metabolic, increases –> basic, decreases –> acidic

Question 4

Pulmonary Function Tests

Answer 4

via simple spirometry

Question 5

FEV

Answer 5

forced expiratory volume

Question 6

FEV1

Answer 6

forced expiratory volume in first second

Question 7

FVC

Answer 7

forced vital capacity

Question 8

FEV1/FVC

Answer 8

% of volume exhaled in first second, normal >/= 80%

Question 9

Obstructive Disease

Answer 9

ex: Asthma, COPD 
LABS:
FEV1 --> decreased
FVC --> Normal/decreased
*FEV1/FVC -->  Decreased

Question 10

Restrictive Disease

Answer 10

ex: Emphysema, expansion of lung prevented but lung is normal
LABS:
FEV1 --> decreased
FVC --> decreased
*FEV1/FVC --> Normal (>/= 80%)
*PEF --> Normal

Question 11

bronchodilator medications judged effective IF–>

Answer 11

> /= 12%improvement, and 200 ml improvement in FEV1

Question 12

hypocapnia

Answer 12

decreased CO2 in blood

Question 13

hypercapnia

Answer 13

increased CO2 in blood