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Clinical Reasoning Corner: Pre and Posttest Probability – Jack Penner

The Clinical Problem Solvers

Welcome, Clinical Problem Solvers, to our first post in the “Clinical Reasoning Corner,” where we will take a deeper dive into key concepts that shape how we think through cases. The “Clinical Reasoning Corner” will provide an introduction to the topics that keep our reasoning rooted in the core principles of clinical problem solving.

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Clinical Reasoning Corner: Likelihood Ratios

The Clinical Problem Solvers

Clinical Reasoning Corner: Likelihood Ratios By Jack Penner Welcome back, Clinical Problem Solvers! Thank you for reading the latest post in our “Clinical Reasoning Corner”, where we discuss key clinical reasoning principles that shape how we think through cases. To do that, we need to rely on LRs. Luckily, Dr.

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Problem Representation

The Clinical Problem Solvers

Clinical Reasoning Corner: Problem Representation By: Marcela A. de Oliveira Santana and Franco Murillo Reviewed by: Jack Penner Welcome back, Clinical Problem Solvers! The problem representation during the clinical reasoning process The PR is linked to hypothesis-generation and can act as a guide during the diagnostic journey.

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Reasoning during the COVID-19 pandemic

The Clinical Problem Solvers

No prior history of atrial fibrillation – just hypertension and diabetes. Would I’ve been able to reason my way to his underlying diagnosis from the initial data? I find it awe-inspiring to listen to clinicians pick up on subtle clues and use both intuitive and analytic reasoning to reach a final diagnosis.

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Subclavian Steal Syndrome

Vascular Physician

Type I – Antegrade vertebral flow is reduced Type II – Antegrade flow during diastolic phase and retrograde flow during systolic phase Type III – Permanent retrograde vertebral flow Diagnosis Diagnosis can be made using imaging such as duplex ultrasound of the subclavian and vertebral arteries.

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Lipodermatosclerosis

Vascular Physician

Etiology: a chronic form of stasis dermatitis resulting from venous hypertension that causes increased capillary permeability and allows leakage of fibrinogen and erythrocytes into the dermis. Diagnosis: clinical, often seen with other symptoms of venous insufficiency including venous varicosities, pitting edema and hyperpigmentation.

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Popliteal Artery Aneurysms

Vascular Physician

While not as common as aortic artery aneurysms (AAA), the risk of mortality from PAAs necessitate a familiarity with the correlating clinical signs and symptoms. Consequently, screening for additional aneurysms upon diagnosis is highly recommended. Patient Presentation: The onset for PAA is typically insidious and asymptomatic.