Kirollos Roman Profile picture
May 16 5 tweets 3 min read Twitter logo Read on Twitter
Expert clinicians utilize targeted debiasing strategies almost instinctively

@rabihmgeha at #SGIM23 employing “What can’t I explain?” for a pt w “CHF exacerbation” hypoxic to 70% on RA, improved to 92% on 3L

Photo from my recent Cognitive M&M courtesy of @UABMedPeds @uabimres Image
He emphasized: the crux of the case probably lies in this one point.
That you went from “may need to intubate” to “looks great” with only 3Lnc?

Doesn’t add up…

Consider an alternative etiology for his hypoxemia — notably, w such profound response to minimal O2, hypercarbia
Spot on, as always!

Pt admitted for diuresis. Became progressively somnolent - gas showed marked respiratory acidosis, CTH w cerebral edema — all d/t hypercarbia 2/2 OSA

So. Anytime I utilize “What can’t I explain?” in a diagnostic timeout, I create a new brief script.
In this case: SpO2 improvement out of proportion to supplemental O2 — consider hypercarbia/hypo ventilation as etiology of hypoxemia

Q: When to apply “what can’t I explain”?
A: OOPS (out of proportion s/sx)

- Tachypnea OOP to hypoxemia
- ^^SpO2 response OOP to suppl O2
- etc

• • •

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More from @KirollosRoman

Sep 13, 2022
Formulating and appraising your PR (problem representation) is critical to the diagnostic process, and intrinsically welcomes cognitive bias

Work this case with me #MedTwitter

ED calls for admission: “40yo M w pneumonia”

*fist pump* sweet, easy admission

1/
“Fever, cough, dyspnea x2d. WBC 20, triggered sepsis. Got cx, fluids, abx. CXR RLL infiltrate. Needs admission for sepsis 2/2 CAP”

With that PR, slam dunk pneumonia.

100% match for my CAP illness script, don’t even need my dyspnea schema (courtesy of @DxRxEdu @CPSolvers)
#CognitiveBias of premature closure
+
cognitive load of retaking a full hx on such an “easy admission” 12hrs into call
=
Cutting corners in the name of “efficiency”

So you confirm a preconceived HPI

Fever✅
Cough✅
Leukocytosis✅
CXR infiltrate✅

Community acquired PNA✅

2/
Read 11 tweets

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