19 results
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... Infected thrombosis, (e.g ... Lemierre's syndrome ... Brucellosis, Q fever ... Inflammatory Diseases (e.g
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Causes of Fever ... Other: • Drug fever ... • Factitious fever ... • Rheumatic fever ... • Protozoa (eg
Hypocalcemia - Differential Diagnosis Algorithm - Low and High PTH
LOW PTH - Hypoparathyroid
 - Congenital (Pediatric)
Diagnosis Algorithm ... Vit-D degradation (eg ... hyperphosphatemia (eg ... Tumor lysis syndrome ... #endocrinology
Hypocalcemia - Differential Diagnosis Algorithm - Low and High Phosphate
LOW PHOSPHATE
 - Low/NormaI PTH
Diagnosis Algorithm ... D Deficiency (e.g ... Phenytoin, Nephrotic Syndrome ... Hypoparathyroidism (e.g ... #endocrinology
Causes of Hypercalcemia due to increased Vitamin D levels
 • The BIG 3:
Causes of Hypercalcemia ... Genetic: Williams syndrome ... pneumonia, Cat scratch fever ... #differential #diagnosis ... #endocrinology
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
• Reactive (e.g ... Enteropathic (e.g ... • Rheumatic Fever ... • Rheumatic Fever ... Enteropathic (e.g
Malignant Adrenal Mass - Differential Diagnosis Algorithm
Suggestive of Malignancy: Inhomogenous Density, Delay in CT Contrast Washout
Releasing Carcinoma (e.g ... Other Source (e.g ... Polycystic Ovarian Syndrome ... Hypertension +/- Hypokalemia ... #Algorithm #Endocrinology
Possible Algorithm for Workup of Fever of Unknown Origin (FUO)
Tier 1 Workup:
 • CBC, comprehensive metabolic
Possible Algorithm ... for Workup of Fever ... release assay (e.g ... #Algorithm #Fever ... Origin #Workup #diagnosis
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Algorithm Endocrine ... Renal Failure • Liver ... Failure • Hypercalcemia ... • Drug Abuse (e.g ... Chronic Fatigue Syndrome
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
Algorithm Red ... papilledema • Horner syndrome ... symptoms and signs (e.g ... ., fever, myalgia ... CNS infection (e.g