15 results
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Little Finger Finger ... Femoral Condyle Knee ... Ankle Dorsiflexion Knee ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Diagnosis Framework ... - Synovium - Oral ... Effusions #causes #differential ... #diagnosis #msk
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... dextrocardia, normal ... safe #, but >500 DANGER ... Short QT <300-360 ms ... #EKG #diagnosis
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Approach to ECGs ... asymmetrical, similar or bigger ... T wave in V1 - normal ... #EKG #diagnosis ... Interpretation #differential
Focal Periphyseal Edema (FOPE lesion) - MSK Radiology
Imaging Findings:
 • Arrows identifying the characteristic edema-like signal
FOPE lesion) - MSK ... atraumatic adolescent knee ... (save $$) Differential ... The physis is normal ... #msk
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
-60 minutes or longer ... joint trauma (e.g ... #Joint #Pain #MSK ... approach #workup #differential ... #diagnosis #arthritis
Metabolic Acidosis with Anion Gap - KILU Mnemonic

K - Ketoacidosis
	• DKA
		- With normal glucose, ask if
DKA - With normal ... glucose, ask if ... tissue hypoxia (e.g ... Metabolic #Acidosis #diagnosis ... #differential
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Equivalents on ECG ... segment at (or 40-60 ms ... J point • De Winter ... #EKG #diagnosis ... #differential #
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
soles, sides of fingers ... ., fingers, earlobes-nickel ... Psoriasis - Elbows, knees ... dermatology #rash #differential ... #diagnosis #skin
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
life-threatening Differential ... myasthenia Diagnosis ... Serologic and EMG ... immunologic assay - MuSK ... Myasthenia #Gravis #diagnosis