Reading Part B20

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Select the most appropriate answer from A, B, C.

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Questions count: 1
Passing grade: 4
Time limit: 3 minutes
Number of allowed attempts: 5

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B20. Which of the following is correct about pulmonary artery catheterization?

Flow-directed pulmonary artery catheters, also called Swan-Ganz catheters, are used in the diagnosis and management of a range of conditions in critically ill patients. Pulmonary artery catheterization can yield direct measurements of central venous, right sided intracardiac, pulmonary arterial and pulmonary capillary wedge pressures. Automated thermodilution techniques can be used to estimate cardiac output. Systemic and pulmonary vascular resistance can be calculated on the basis of vascular pressures and cardiac output. Despite the widespread use of pulmonary artery catheters in hemodynamically unstable patients, no study has definitively demonstrated improved outcome in critically ill patients managed using pulmonary artery catheterization. Role of invasive hemodynamic monitoring in critically ill patients is controversial as the pulmonary artery catheter is yet to be proven to improve patient outcome.

No study has been conducted about its effectiveness in critically ill patients.

It has demonstrated some adverse effects in critically ill patients, raising controversy.

Its efficacy in improving outcome in critically ill patients is not yet proven beyond criticism.