Count to 10 - Anaesthetic Primary Podcast EP10 – Respiratory Measurement | Anaesthetic Primary Topic | Respiratory Physiology | CT10
11 snips
Mar 9, 2023 The podcast covers respiratory acidosis, methods to measure respiratory function like Flow-Volume Loops, and past SAQ's from exams. The host announces changes to the podcast format due to upcoming Part 2 exam preparation, focusing on listener-requested learning objectives. Topics include interpretation of blood gas analysis in respiratory failure, understanding forced expiratory volume (FEV), expiratory phase of the respiratory cycle, respiratory measurement and acid-base changes, and analyzing expiratory flow volume curves in lung diseases.
AI Snips
Chapters
Transcript
Episode notes
Host Changes Format While Studying
- Anirudh explains he will pause long episodes to study for his fellowship and switch to short 10–15 minute LO-focused episodes.
- He invites listeners to email learning objectives they want covered at anirudh@sweetdreamsanaesthesia.com.
CO2 Changes Strongly Shift pH
- Small changes in PaCO2 produce large pH shifts because pH = 6.1 + log([HCO3-]/0.03·PaCO2).
- Doubling PaCO2 from 40 to 80 mmHg can drop pH from 7.4 to ~7.1, showing lungs dominate acute acid–base control.
Memorize Simple Compensation Rules
- Use simple bedside rules to determine acute vs chronic respiratory acid–base compensation.
- Remember compensation numbers: respiratory acidosis ΔHCO3- ≈ +1 (acute) and +4 (chronic) per 10 mmHg ↑PaCO2; alkalosis ≈ −2 and −5.