21 results
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
- Differential Diagnosis ... • Infectious ... Cholangitis • UTI ... • Protozoa (eg ... #Differential #Diagnosis
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
- Differential Diagnosis ... • Congenital Adrenal ... CRF) • Infection ... Chronic UTI) • ... #Differential #Diagnosis
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
- Differential Diagnosis ... • Infection: ... Infected thrombosis, (e.g ... Solid tumors: Renal ... Inflammatory Diseases (e.g
Procalcitonin Limitations - Situations where PCT can be misinterpreted:
- Single value testing
- AKI/CKD
- Pancreatitis
- Cancers/Neoplasms
- Trauma
-
Burns - Localized infections ... (e.g. ... SSTI, UTI) - Atypical ... pathogens (e.g. ... Limitations #PCT #Diagnosis
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
- Differential Diagnosis ... • Exercise • Fever ... • UTI Orthostatic ... HSP • Post-infectious ... Protein deposition (eg
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Adrenal Insufficiency ... case) then go to stim ... Standard Stim test ... is 250 mcg of IV ... intravenous (IV) injection
Malignant Adrenal Mass - Differential Diagnosis Algorithm
Suggestive of Malignancy: Inhomogenous Density, Delay in CT Contrast Washout
- Differential Diagnosis ... Hypointense to Liver on TI ... Releasing Carcinoma (e.g ... Other Source (e.g ... #Differential #Diagnosis
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
- Differential Diagnosis ... SGLT2 inhibitors (e.g ... Nephrogenic DI (Renal ... urine volume): • UTI ... #Differential #Diagnosis
"I MD SOAPS" Infectious Diseases Exposure History

I - Immunization - Vaccination status (age-appropriate, comorbidities, travel, etc)
M
"I MD SOAPS" Infectious ... specific food (e.g ... protection, past STI ... InfectiousDiseases #Diagnosis
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
Disorders: • Infection ... tuberculosis, fungal infections ... • Low-grade fever ... Serum DHEAS Diagnosis ... Administer 250 mcg