Preoxygenation in Anesthesia

Рет қаралды 18,552

Michael Bentley

10 жыл бұрын

Пікірлер: 10

@sapnadubey8362 3 ай бұрын

🙌🙌🙌

@anjanettetan2490 3 жыл бұрын

So good! Thank you

@Ecktunbaas 4 жыл бұрын

very helpful! Thank you so much!

@Jaaaaaaake999 3 жыл бұрын

Awesome, thanks

@lutfiabinragia5779 9 ай бұрын

It is so helpful thank u so much

@anjalipoudel7563 9 жыл бұрын

so now the question is... how much time do we preoxygenate??? preoxygenating with 3-5min leads to tolerance to apnea for longer period than with 4 vital capacity breaths with 100% oxygen.. how do we understand the difference in these 2?

@blondeinspired 4 жыл бұрын

Think this would be more helpful with audio input :)

@ravikumarcmkumar6350 2 жыл бұрын

Why should we specifically preoxygenate for 3 minutes . Is there any logic or any calculation for 3 mins time .

@benj_md 3 ай бұрын

You preoxygenate up to end tidal O2 of 87%.

@anhquang9644 2 ай бұрын

Well no we don't, especially if you understand the work. Firstly we preoxygenate the patient before and during the injection of NMBAs, and the average time before effect starts to show is 3 minutes for usual agents like Rocuronium and Atracurium. So by doing it for 3 minutes the concentration of the patient's oxygen in aveolar gas is enough to go through these minutes before you can safely put a tube in their trachea without complications like bronchospasm or laryngeaspasm. In practice however if the agents have a lower time required for emergence of effect like Succinylcholine we can just do preoxygenation for a minute and then intubate right away. For me personally where i practice i only preoxygenate for 2 minutes, and the FRC only reaches 60-70%, these numbers often give the patient 4-5 minutes.