1913 results
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Skin and/or ... , Gitelman's syndrome ... Pseudo-hyperaldosteronism: exogenous ... acid, Liddle's syndrome ... • Cushing's syndrome
Hypercortisolism (Cushing syndrome) - Simplified Differential Diagnosis Algorithm
Exogenous (ACTH-independent)
Endogenous
 • ACTH-dependent:
    - ACTH-secreting
Hypercortisolism (Cushing syndrome ... Diagnosis Algorithm Exogenous ... ACTH-independent) Endogenous ... Hypercortisolism #Cushings #syndrome
Staging of Skin Mottling

Mottling is less sensitive, but more specific for hypoperfusion and elevated mortality (figure
Staging of Skin ... suggests active endogenous ... not additional exogenous ... S0168827814007417 #Skin
Fever - Pyrogen Pathophysiology

EXOGENOUS PYROGEN
 • Bacteria: Lipopolysaccharide components, peptidoglycans and muramyl peptide derivatives, Toxins
 •
Pathophysiology EXOGENOUS ... components Exogenous ... proinflammatory mediators (endogenous ... , IFN, IL-6 ENDOGENOUS ... organs CNS - Endogenous
Workup for Hyperphosphatemia - Differential Diagnosis Framework
Rule out spurious hyperphosphatemia: paraproteinemia, hyperlipidemia, hemolysis, hyperbilirubinemia, liposomal amphotericin
Phosphate Load: • Exogenous ... Fosphenytoin • Endogenous ... Rhabdomyolysis, Tumor lysis syndrome
Allergic Contact Dermatitis 
- Erythematous, indurated, scaly plaques 
- T-cell mediated, delayed-type hypersensitivity response to exogenous
hypersensitivity response to exogenous ... Dermatology #Rash #Skin
Hypoglycemia - Evaluation Algorithm
Interpreting Hypoglycemia Labs - the patient must be hypoglycemic at the time of
Proinsulin - Is it endogenous ... → Exogenous Insulin
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Common bacteria (endogenous ... Staphylococci (skin ... Common bacteria (endogenous ... Staphylococci (skin
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
Urine chloride < 20 mmol/l - Chloride responsive (Chloride
Severe K depletion, Exogenous ... BP = Bartter's Syndrome ... , Gitelman's Syndrome
Hyperaldosteronism - Etiologies of Mineralocorticoid Excess

Primary Hyperaldosteronism (Normal or Low Renin, High Aldosterone) 
 - Aldosterone-secreting
- Cushing’s syndrome ... - Exogenous