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Figure 32-28
Bedside testing of the pulmonary artery catheter-pressure
transducer system. With the tip of the catheter held at the level of the transducer
and the heart, a pressure of 0 mm Hg is recorded. The catheter tip is raised to
create a 30-cm vertical fluid column, and the resulting pressure display should equal
22 mm Hg (equivalent to 30 cm H2
O). (Redrawn from Mark JB: Atlas
of Cardiovascular Monitoring. New York, Churchill Livingstone, 1998, Fig. 3-4.)
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