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Old 12-20-2011
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Vascular Where is the catheter tip; Pressure reading!

A cardiac catheterization is done in a healthy person. The blood sample withdrawn from the catheter shows 60% oxygen saturation, and the pressure recording shows oscillations from a maximum of 26 mm Hg to a minimum of 14 mm Hg. The catheter tip was located in which of the following areas?

(A) Ductus arteriosus
(B) Foramen ovale
(C) Left atrium
(D) Pulmonary artery
(E) Right atrium
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Old 12-20-2011
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pulmonary artery
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i think its D
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Old 12-20-2011
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its pul artery
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i guess it is E
it was in the IVC and then moved to the RA coz in the right atrium u add the venous blood coming from the heart which has less O2
i hope to hear the answer soon
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Ans in pulmonary artery

Cannot be RA as the pressure in RA would not have been so high and would be between 0 to 15 mm hg
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Old 12-20-2011
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why the drop in PO2 pressure then from 26 to 14?? i dont get this point?
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