13 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... axillary nerve ... regimental badge" anesthesia ... #UpperLimb #Extremity ... sensory #motor #arm #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... saddle (perineal) anesthesia ... Commonly caused ... damage to peroneal nerve ... sensory #motor #leg #physicalexam
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Spinal stenosis/nerve ... cyanosis - Cool extremity ... Paralysis 4) Paresthesia ... diagnosis #lower #extremity ... #msk #physicalexam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... • S - Saddle anesthesia ... - Emergency Causes ... • Provocative Tests ... absent anal wink test
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
Froment’s Test for ... Ulnar Nerve Palsy ... This tests for ... grip weakness caused ... video #neurology #physicalexam
Positive Lachman test in ACL Injury

Here is an exam of a patient under anesthesia with an
Positive Lachman test ... patient under anesthesia ... That causes the ... #Lachmans #test ... clinical #video #PhysicalExam
A 70-year-old woman attends a check-up with a family doctor. As a background, he has a
the peripheral nerve ... initiating trains of nerve ... skeletal muscles to cause ... Trousseau #Sign #PhysicalExam ... #Clinical #Photo
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Incidence: 1 to 2 cases ... with peripheral nerve ... of peripheral nerve ... paralysis of all extremity ... and sensitive tests
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
Test downward eye ... Test if patient ... threat Cranial Nerves ... Casey Albin MD @ ... caseyalbin #PhysicalExam
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... and peripheral nerves ... extremities, upper extremity ... Nerves -> mononeuritis ... retinopathy Lab Tests