Which of the following is true concerning the triple-lumen esophageal catheter used with the BICORE CP-100 Pulmonary Monitoring System?
a. It can measure intrapleural pressure indi-rectly.
b. Its ideal position is the upper third of the esophagus.
c. When the catheter enters the stomach, a negative pressure is recorded.
d. The catheter can be positioned by observ-ing the markings on its side.
ANS: A
Esophageal pressure is used clinically to estimate intrapleural pressure.
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