21 results
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... abnormal) in nearly all ... of AVS and negative ... with a central cause ... #Diagnosis #PhysicalExam
Lachman Test for ACL Injury

The patient lies supine and with the knee in ~20-30 degrees of
ACL Injury The ... degrees of flexion, hip ... #ACL #Injury #Anterior ... clinical #video #physicalexam ... #msk #orthopedics
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential Diagnosis ... K), H. pylori test ... thyroid function test ... not required in all ... #hematology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... Legg-Calve-Perthes disease ... - Lyme disease ... lower #extremity #msk ... #physicalexam
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... ANAs; thus, a negative ... : HIV test, a rubella ... (to support a diagnosis ... #testing #Rheumatology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential Diagnosis ... Knee #Effusions #causes ... #differential #diagnosis ... #msk #physicalexam
Cryofibrinogenemia Summary

Cryofibrinogenemia Epidemiology:
 • 40-70 years with a modest female predominance

Cryofibrinogenemia:
 • The precipitation of a
levels >1g/L • Negative ... causes of secondary ... • TTP, HUS and HIT ... Antiphospholipid syndrome ... #rheumatology #
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Cold Agglutinin Syndrome ... for anti-C3d and negative ... Mycoplasma, EBV, HIV ... Test: Donath-Landsteiner ... test #cold #
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
involvement: May involve anterior ... Rule out other causes ... affected areas and if negative ... osteoarticular and skin disease ... #Rheumatology #
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... cause unknown) ... II ○ Susac’s syndrome ... Noise trauma ○ MS ... ○ Lyme disease