36 results
Central retinal artery occlusion (CRAO). Positive "spot sign" on Ocular Ultrasound

78 yo M with sudden onset
retinal artery occlusion ... Positive "spot sign ... " on Ocular Ultrasound ... RetinalArtery #Occlusion ... POCUS #Ocular #Ultrasound
Central Retinal Vein Occlusion (CRVO): Pathogenesis and clinical findings

#CentralRetinalVein #Occlusion #CRVO #pathophysiology #ophthalmology #diagnosis #signs #symptoms
Central Retinal Vein Occlusion ... CentralRetinalVein #Occlusion ... #CRVO #pathophysiology ... ophthalmology #diagnosis #signs
92F w acute painless monocular vision loss. What's the diagnosis?

...

Central retinal artery occlusion (CRAO)! Retrobulbar "spot
retinal artery occlusion ... Retrobulbar "spot ... sign" with embolus ... RetinalArtery #Occlusion
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Transcellular Shift ... K-ATPase which imports ... potassium #low #pathophysiology
Central Retinal Artery Occlusion: Pathogenesis and clinical findings
 • Inflammatory Disease: (i.e. GCA, SLE, GPA) ->
Retinal Artery Occlusion ... Retinal Artery Occlusion ... -> Cherry-red spot ... #CRAO #pathophysiology ... ophthalmology #diagnosis #signs
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
Hard Exudates • Occlusion ... -> Cotton-wool Spots ... -> Elschnig's Spots ... #Retinopathy #pathophysiology ... ophthalmology #diagnosis #signs
Pathyophysiology - hyperglycemic crises in patients with diabetes 
Key signs/symptoms of HHS/DKA:
Both: Polyuria, polydipsia, weight loss,
Pathyophysiology ... diabetes Key signs ... hypotension) DKA: Short
Diabetic Retinopathy: Pathogenesis and clinical findings

Mild Non-proliferative DR
 • Outpouchings of the weakened capillary walls or
infarcts from occlusions ... -> Cotton-wool spots ... complications #pathophysiology
Refeeding Syndrome: Pathogenesis and clinical findings

Patients at Risk of Refeeding Syndrome:
 - Little or no nutritional
Metabolic Acidosis • Shift ... Syndrome #diagnosis #pathophysiology ... #symptoms #signs
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
., CXR, CT, ultrasound ... leukocytosis, left-shift ... chest pain) and signs