dr_singh246
internal medicine pgy2
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A young skier with normal pulmonary function (minute volume 4 L; pulmonary blood flow 5 L/min) who is recovering from a tibial fracture suddenly develops right-sided chest pain and tachypnea. Embolic occlusion of the right pulmonary artery is suspected. Which of the following alveolar gas measurements would immediately confirm the diagnosis? PO2 (mmHg) PCo2 (mmHg)
A 125 60
B 125 20
C 100 40
D 80 20
E 80 60
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| mjl1717
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In this case i think of a diminished O2 and the Co2 approaching 50 or above I go with:
answer-e
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| kmp
Forum Elite
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I think there will be respiratory alkolosis so was thinking of
D) PO2 80 PCO2 20
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| mjl1717
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Although the ABG is not diagnostic, I must say kmp is probably correct:
but in this diagnostic arsenal Id include:
1) Helical CT arteriography or V/Q scan
2)D-dimer by ELISA above 500
3)and CXR
*The alveolar- arterial oxygen difference(A-a DO2) are most often abnormal.
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| mdwannabe
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D... hypervent due to pain and hypoxemia. CT- first, but start Heparin prior... D-Dimer only useful in negative CT, to rule out...never used to Rulie in.
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| dr_singh246
internal medicine pgy2
Topics: 235
Posts: 561
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i agree dr mdwannabe
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to love when it can be lost, to go on when progress seem futile and to believe in every fiber of your body. to live , have hope and faith and to never give in.... dr_singh246@yahoo.com
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