ICU Vivas · Equipment & physics
Clinical viva — your approach to the ICU equipment and monitoring
A clinical viva on how ICU monitors mislead — pulse oximetry bias, capnography limits, arterial-line dynamic response and line-cuff discrepancy, temperature sites and electrical safety.
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Target exams
CICMFFICMEDIC
Prompt
A clinical viva on how ICU monitors mislead — pulse oximetry bias, capnography limits, arterial-line dynamic response and line-cuff discrepancy, temperature sites and electrical safety.
The question
"Take me through how the monitors and devices on a ventilated patient can mislead you."[1]
References8ShowHide
- [1]Moon K, Daino N, Gomez P, et al. Pulse Oximetry-A Perioperative Perspective. Diagnostics (Basel, Switzerland), 2026.PMID 42351472
- [2]León-Valladares D, Barrio-Mateu LA, Cortés-Carmona N, et al. Determining factors of pulse oximetry accuracy: a literature review. Revista clinica espanola, 2024.PMID 38599519
- [3]Cotton SA, Lee JA, Malhotra A, et al. Do Differences in Skin Pigmentation Affect Detection of Hypoxemia by Pulse Oximetry: A Systematic Review of the Literature. Clinical nursing research, 2025.PMID 41045137
- [4]Nassar BS, Schmidt GA Capnography During Critical Illness. Chest, 2016.PMID 26447854
- [5]Devasahayam S, Gangadharan N, Surekha C, et al. Intra-arterial blood pressure measurement: sources of error and solutions. Medical & biological engineering & computing, 2022.PMID 35235133
- [6]Zamith N, Walker C, Scully T, et al. Should I Target the Blood Pressure from the Arterial Line or the Cuff? A Practical Approach for Dealing with Widely Discordant Measurements. Journal of clinical medicine, 2025.PMID 41464519
- [7]Jogie J, Jogie JA, Phillip K Perioperative Temperature Monitoring in Anesthesia: A Review of Current Evidence and Clinical Practice. Cureus, 2026.PMID 42147589
- [8]Burgess RC Electrical safety. Handbook of clinical neurology, 2019.PMID 31277877