14 results
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
Insufficiency Addison's Disease ... /vomiting • Abdominal ... Serum DHEAS Diagnosis ... endocrinology #diagnosis ... #signs #symptoms
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
Causes of Acute ... Small-vessel vasculitis ... • Inflammatory disease ... Urethral stricture/valves ... /phimosis #Diagnosis
Causes of Acute Onset Fever - Differential Diagnosis Algorithm
Viral:
 • Rhinovirus
 • Influenza Virus
 • Parainfluenza
Causes of Acute ... Skin Infection Abscess ... • Thoracic • Abdominal ... Adrenal Insufficiency ... • Sickle Cell disease
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... - GI tract: abdominal ... purpura: strong sign ... Supply gut -> abdominal ... retinopathy Lab Tests
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... and Differential Diagnosis ... clinical context and signs ... Glomerulonephritis / Vasculits ... biopsy • Abdominal
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
and Differential Diagnosis ... previously stable values ... bruit or signs ... Coarctation of aorta, Vasculitis ... disease: CKD, acute
Localized Acute Abdominal Pain(<72 hours) - Differential Diagnostic Algorithm
Look for surgical abdomen
Upper quadrant: R/O cardiac, pulmonary,
Localized Acute ... Abdominal Pain(< ... - Differential Diagnostic ... musculoskeletal causes ... hernia Pelvic / Adrenal
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... pulmonary and renal ... purpura: Strong sign ... tract, and often causes ... gut involvement, abdominal
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... from a group to assess ... = incidence in acute ... how related two values ... #calculations #diagnosis
Imaging Modalities for Renal Calculus

AXR. KUB
 - Good far calcium-containing stones useful when limited radiation dose
of flank or abdominal ... retroperitoneal disease ... MRI - Limited value ... for non-calculus causes ... with surgical access