FREE CVP Technical Skills and Equipment Operation Questions and Answers
When troubleshooting a malfunctioning CPB machine, which of the following steps should be performed first?
The first step in troubleshooting a malfunctioning CPB machine is to review the operational manual and perform a visual inspection. This helps identify common issues and provides guidance on potential solutions. Contacting the manufacturer, replacing components, or shutting down the machine should be considered based on the findings from the initial inspection.
What is the purpose of a bubble detector in a CPB system?
A bubble detector in a CPB system is used to detect and alert the presence of air bubbles in the blood circuit. Air bubbles can cause serious complications, so the detector plays a crucial role in ensuring the safety and effectiveness of the CPB system. It does not measure oxygen levels, monitor temperature, or calculate blood flow rates.
How should a perfusionist handle an alarm indicating low arterial pressure during CPB?
If there is an alarm indicating low arterial pressure during CPB, the perfusionist should first check the connections and flow rate, and then assess the patient’s condition. This approach helps identify and address the underlying issue while ensuring patient safety. Disconnecting the machine, increasing the oxygenator’s temperature, or administering anticoagulants are not appropriate initial responses.
What is the primary purpose of an oxygenator in a cardiopulmonary bypass (CPB) system?
The primary purpose of an oxygenator in a CPB system is to exchange oxygen and carbon dioxide in the blood, mimicking the gas exchange function of the lungs. It does not filter blood, provide mechanical support to the heart, or monitor blood pressure.
What is the recommended procedure for priming the CPB circuit before initiating cardiopulmonary bypass?
The recommended procedure for priming the CPB circuit involves using a mixture of blood and saline, and ensuring that no air bubbles are present. This helps maintain the necessary volume and prevents air embolism. Using only saline or sterile water, or filling the circuit with patient blood directly, is not appropriate.