Monitoring & CPR · NEET PG Preparation Anaesthesia
Which invasive blood pressure monitoring transducer artifact occurs when the natural frequency of the monitoring system is close to the frequency of…
Practice question from Monitoring & CPR (NEET PG Preparation Anaesthesia), with the correct answer and a step-by-step solution.
hard · MCQ · Q-52F636
Which invasive blood pressure monitoring transducer artifact occurs when the natural frequency of the monitoring system is close to the frequency of the pulse wave, resulting in a falsely elevated systolic pressure reading?
- A.UnderdampingCorrect answer
- B.Overdamping
- C.Air bubble in tubing
- D.Excessive tubing length
Solution
Underdamping in an arterial line system causes resonance, leading to an exaggerated waveform with a falsely high systolic pressure and presence of extra (spurious) oscillations. Overdamping results in a sluggish waveform with a falsely low systolic pressure.
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