Prompt

Fire victim with reassuring saturation; flat capnograph; drifting temperature; depth number in range

Viva Stems

The fire victim's oximeter reads 97% but she is confused. Do you believe the number?
Name the three classic pulse-oximeter limitations and the evidence direction for each.
The capnograph flattens to zero mid-case. Talk me through it.
Where are you measuring temperature, and why that site?
The BIS reads 52 but the patient moves. Who is lying?
The arterial line reads high after repositioning. What do you check?
Which monitor numbers are physics-owned versus convention, and why does the distinction matter?
What are the common exam pitfalls in this topic?

References7Show

[1]Moon K, et al. Pulse Oximetry-A Perioperative Perspective Diagnostics (Basel), 2026.PMID 42351472
[2]León-Valladares D, Barrio-Mateu LA, Cortés-Carmona N, et al. Determining factors of pulse oximetry accuracy: a literature review Rev Clin Esp (Barc), 2024.PMID 38599519
[3]Cotton SA, et al. Do Differences in Skin Pigmentation Affect Detection of Hypoxemia by Pulse Oximetry: A Systematic Review of the Literature Clin Nurs Res, 2025.PMID 41045137
[4]Ishihara T, et al. Time-Based Capnography to Diagnose Airway Obstruction During Lung Lobectomy in a Dog Animals (Basel), 2025.PMID 41375427
[5]Jogie J, et al. Perioperative Temperature Monitoring in Anesthesia: A Review of Current Evidence and Clinical Practice Cureus, 2026.PMID 42147589
[6]Yu H, et al. Depth of anesthesia monitoring: Current evidence, clinical impact, and future directions J Int Med Res, 2026.PMID 42333677
[7]Huang X, et al. Effects of EEG-based monitoring of depth of anesthesia on postoperative delirium, cognitive dysfunction, and long-term neurocognitive outcomes: a meta-analysis Front Med (Lausanne), 2025.PMID 41907691

Viva Stems

The fire victim's oximeter reads 97% but she is confused. Do you believe the number?

Name the three classic pulse-oximeter limitations and the evidence direction for each.

The capnograph flattens to zero mid-case. Talk me through it.

Where are you measuring temperature, and why that site?

The BIS reads 52 but the patient moves. Who is lying?

The arterial line reads high after repositioning. What do you check?

Which monitor numbers are physics-owned versus convention, and why does the distinction matter?

What are the common exam pitfalls in this topic?

References7Show

[1]Moon K, et al. Pulse Oximetry-A Perioperative Perspective Diagnostics (Basel), 2026.PMID 42351472
[2]León-Valladares D, Barrio-Mateu LA, Cortés-Carmona N, et al. Determining factors of pulse oximetry accuracy: a literature review Rev Clin Esp (Barc), 2024.PMID 38599519
[3]Cotton SA, et al. Do Differences in Skin Pigmentation Affect Detection of Hypoxemia by Pulse Oximetry: A Systematic Review of the Literature Clin Nurs Res, 2025.PMID 41045137
[4]Ishihara T, et al. Time-Based Capnography to Diagnose Airway Obstruction During Lung Lobectomy in a Dog Animals (Basel), 2025.PMID 41375427
[5]Jogie J, et al. Perioperative Temperature Monitoring in Anesthesia: A Review of Current Evidence and Clinical Practice Cureus, 2026.PMID 42147589
[6]Yu H, et al. Depth of anesthesia monitoring: Current evidence, clinical impact, and future directions J Int Med Res, 2026.PMID 42333677
[7]Huang X, et al. Effects of EEG-based monitoring of depth of anesthesia on postoperative delirium, cognitive dysfunction, and long-term neurocognitive outcomes: a meta-analysis Front Med (Lausanne), 2025.PMID 41907691

Measurement & monitoring physics — Viva