7 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Dermatomes and Myotomes ... saddle (perineal) anesthesia ... #Dermatomes #Myotomes ... sensory #motor #leg #physicalexam
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Dermatomes and Myotomes ... spared in this injury ... regimental badge" anesthesia ... sensory #motor #arm #physicalexam
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
Spinal Cord Injury ... Motor Reflex C4 ... None T7-T12 See Dermatomes ... #SpinalCord #Injury ... NerveRoots #Levels #differential
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... - AKI Workup Algorithm ... Anti-ds-DNA, C3/C4 ... Acute #Kidney #Injury ... #AKI #Workup #Algorithm
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
for Crises in Anaesthesia ... Traumatic brain injury ... #Hyperthermia #Differential ... Anesthesiology #Anesthesia ... Diagnosis #Management #Workup
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
• S - Saddle anesthesia ... constipation Differential ... or absent lower extremity ... region (S2-S4 dermatomes ... Equina #syndrome #differential
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Repetitive strain injury ... Trauma • Crush injury ... cyanosis - Cool extremity ... #msk #physicalexam