Some topics that have been batting around my head over the past few months:
The Secret Sixth Cause of Arterial Hypoxemia
You should know the standard five:
- V/Q Mismatch (Deadspace)
- Low FiO2
- Diffusion Abnormality
- Shunt (Usually Physiologic)
but the sixth cause can be particularly dangerous with cause #5, the physiologic shunt. The sixth cause is Low Mixed Venous Saturation (SvO2).
John Marinaro created this acronym for the causes above:
Excess extraction of O2 from Hb (low SvO2)
It ain't phenlephrine anymore
Dissociated Awake for Critical AS/Pulmonary Hypertension
just keep loving this more and more. See the hemodynamically neutral intubation podcast for the final version of this idea.