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To lose oxygen as from not breathing. Desat is short for desaturate. Oxygen gets less and less and if oxygenation isn't restored either by the patient, CPR, or a ventilator, the patient will die. Desat is commonly used in the hospital when talking about a patient who's oxygen saturations are going down as seen on a pulse oximeter and/or arterial blood gas.
I can't breathe. I need oxygen or I will desat. All right. Let's get some oxygen going in by Non-rebreather at 90%
desat by ventilator96 November 8, 2009
Related Words
dtsat Dasath Disath Disator dtatl DTLAT Dtsa DTSAB Dtyat Dasatoilet
"Don't talk about this". Used to deflect or avoid a question or discussion topic.
Max: Can I see your glasses folder? Isaac: DTAT!!!
dtat by WhoDoesntFan November 24, 2020
An acronym for "don't talk about this". Used to evade a question or completely shut down a conversation.
A: Can I see your glasses folder?
B: dtat
dtat by WhoDoesntFan November 15, 2020
Down To Ass To Mouth. From the acronym family of DTF and DTP.
See Ass To Mouth.
I hope that hot sexy ginger is DTATM over there
DTATM by magerilla January 15, 2011
The horrible anti-immigrant, anti-gay, anti-trans, anti-Disney Republican governor of Florida.
The store shelves are empty and I cannot wear my drag outfit to Disney's Gay Days pride event, Thank you Ron Desatan.
Desatan by Old-Fart May 18, 2023

disattached 

The word idiots use when "detached" and "disconnected" are at the tip of their tongue.
Kid: Yo I have the craziest dreams in Social Studies class. One time, I was sleeping, and I had this dream that the school's new wing was dis...dis...disattached from the rest of the school, and we had to, like, swim across to get to the other side. It was crazy!11
disattached by cakeofages August 8, 2008