10 results
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
• Head or ear trauma ... Exam: • Hearing tests ... whispered voice test ... 512 Hz) Weber Test ... ○ MS, CVA •
Amsterdam Wrist Rules
Rules that dictate which patients require imaging based on the likelihood of wrist fracture
pain after any trauma ... Painful balottement test ... fracture #radiology #msk
Oxygen Delivery Systems
Nasal Cannula:
 • Flow: 1 - 6 L/min
 • FiO2: 25 - 40% (-4%/L
of flow) Face Mask ... Device: Face Tent ... ~40% Venturi Mask ... management #pulmonary #comparison
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Mask Oxygen Delivery ... Devices Simple Mask ... aka Hudson's Mask ... FiO2 35-50% Face Tent ... (e.g. facial trauma
Primary and Secondary Headaches - Red Flags and Differential Diagnosis
Red Flags (SNOOP):
S - Systemic		
N - Neurologic
Patient Prefers to Rest ... - Meningitis Trauma ... - Post-Trauma, ... Amy Chung, MD, MSc
Oxygen Delivery Devices - Comparison
Low Flow:
 • Nasal cannula (1-6L, 24-40% FiO2)
 • Face mask (5-10L,
Delivery Devices - Comparison ... FiO2) • Face mask ... FiO2) • Face tent ... /shovel mask (5- ... Delivery #Devices #Comparison
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
present both at rest ... improves quickly with rest ... Previous joint trauma ... #Joint #Pain #MSK
Distinguishing between Inflammatory and Degenerative joint disease
Inflammatory Joint Disease
 • Swelling stimulates joint nociceptors -> Pain
nociceptors -> Pain with rest ... motion (relieved by rest ... #Degenerative #Comparison ... #Versus #MSK #JointDisease
Heel Strike Test for Femoral Fracture

The heel strike, an axial force on the femur, can be
Heel Strike Test ... #Heel #Strike #Test ... video #sports #msk ... #orthopedics #Trauma
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
nerve injury (25%) TEST ... Consider trauma/ ... Posterior #Injury #msk