9 results
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
- Differential Diagnosis ... Musculoligamentous injury ... spondyloarthritis (e.g ... spondyloarthritis (e.g ... #causes #primarycare
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
- Differential Diagnosis ... High altitude (eg ... to neurologic injury ... Intrapulmonary shunting (eg ... intracardiac shunting (eg
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
causing endothelial injury ... ) Meltzer's Triad ... : • Clinical triad ... Labs/Diagnosis: ... tissue disorder (e.g
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
treat spinal cord injury ... Spinal stenosis - Abscess ... - Infection (e.g ... patients with a long ... #differential #diagnosis
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... Libman Sacks) • Atrial ... Septic Emboli Cause Injury ... Differential Diagnosis ... ↑ ESR, CRP • EKG
Pyogenic liver abscess in children
Common bacterial causes in children:
 • S.aureus
 • Strep spp
 • Enteric
from contiguous focus ... Hepatic artery (e.g ... ) • Traumatic injury ... #differential #diagnosis ... #hepatology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
, verrucous) - Lung ... Libman Sacks) • Atrial ... Cholesterol emboli syndrome ... Septic emboli cause injury ... ↑ ESR, CRP • EKG
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
by excretion (e.g ... its metabolism (e.g ... liver or renal injury ... / hypoxemia -> focus ... - Compartment syndrome
Helpful Clinical Features in Evaluating Bleeding Disorders
Age of onset
 • Neonate - in 20% of haemophilias,
Drug history, e.g ... non-accidental injury ... connective tissue, e.g ... Marfan syndrome, ... #hematology #primarycare