Thoracic – TCAR Exam Review QUESTIONS AND
ALL CORRECT ANSWERS
100% SOLVED AND GUARANTEED SUCCESS!!
Blood supply upper 2/3 of trachea - answer--inferior
thyroid arteries
Blood supply lower 2/3 of trachea - answer--
bronchial arteries
Blood supply lung parenchyma - answer--bronchial
arteries
Pathway of azygous vein in the thorax - answer--
runs along R side and dumps into superior vena cava
Pathway of thoracic duct in the chest - answer--runs
along R side, crosses midline at T4-T5, goes into L
,neck and dumps into L subclavian vein at junction
with LIJ
Pathway of phrenic nerve in thorax - answer--runs
anterior to hilum
Pathway of vagus nerve in thorax - answer--runs
posterior to hilum
What fissures exist in the lungs? - answer--Major
oblique separates RLL from middle and upper lobe
Minor separates upper from middle lobe
Muscle used in quiet respiration - answer--
Diaphragm 80%, intercostals 20%
Accessory muscles of respiration - answer--SCM
,Levators
Serratus posterior
Scalenes
Main surface active agent in surfactant - answer--
phosphatidylcholine
Alveolar, arterial, and venous pressures in lung
zones in upright person - answer--Zone I: PA > Pa >
Pv
Zone II: Pa > PA > Pv
Zone III: Pa > Pv > PA
Normal pulmonary artery pressure - answer--25/10
(mean 15)
, What predicted value is needed for pulmonary
resection? - answer--Predicted postop FEV1 > 0.8L
(>40% predicted)
What can be done if the predicted postop FEV1 is
close to 0.8 (40% predicted)? - answer--Obtain a
V/Q scan and see how much that segment actually
contributes
Single best predictor of being able to wean off
ventilator after pulmonary resection - answer--FEV1
Minimum DLCO for lung resection - answer-->11-12
ml/min/mmHg CO (>50% predicted value)
What six things effect DLCO? - answer--Pulmonary
capillary surface area
Hgb
ALL CORRECT ANSWERS
100% SOLVED AND GUARANTEED SUCCESS!!
Blood supply upper 2/3 of trachea - answer--inferior
thyroid arteries
Blood supply lower 2/3 of trachea - answer--
bronchial arteries
Blood supply lung parenchyma - answer--bronchial
arteries
Pathway of azygous vein in the thorax - answer--
runs along R side and dumps into superior vena cava
Pathway of thoracic duct in the chest - answer--runs
along R side, crosses midline at T4-T5, goes into L
,neck and dumps into L subclavian vein at junction
with LIJ
Pathway of phrenic nerve in thorax - answer--runs
anterior to hilum
Pathway of vagus nerve in thorax - answer--runs
posterior to hilum
What fissures exist in the lungs? - answer--Major
oblique separates RLL from middle and upper lobe
Minor separates upper from middle lobe
Muscle used in quiet respiration - answer--
Diaphragm 80%, intercostals 20%
Accessory muscles of respiration - answer--SCM
,Levators
Serratus posterior
Scalenes
Main surface active agent in surfactant - answer--
phosphatidylcholine
Alveolar, arterial, and venous pressures in lung
zones in upright person - answer--Zone I: PA > Pa >
Pv
Zone II: Pa > PA > Pv
Zone III: Pa > Pv > PA
Normal pulmonary artery pressure - answer--25/10
(mean 15)
, What predicted value is needed for pulmonary
resection? - answer--Predicted postop FEV1 > 0.8L
(>40% predicted)
What can be done if the predicted postop FEV1 is
close to 0.8 (40% predicted)? - answer--Obtain a
V/Q scan and see how much that segment actually
contributes
Single best predictor of being able to wean off
ventilator after pulmonary resection - answer--FEV1
Minimum DLCO for lung resection - answer-->11-12
ml/min/mmHg CO (>50% predicted value)
What six things effect DLCO? - answer--Pulmonary
capillary surface area
Hgb
