13 results
Etiologies of Hypoaldosteronism

Hyporeninemic Hypoaldosteronism (Low Renin, Low Aldosterone)
 - Diabetic Nephropathy 
 - NSAIDs
Non-Hyporeninemic Hypoaldosteronism (Normal
) - Diabetic Nephropathy ... insufficiency - Critical ... #Differential # ... Diagnosis #Renin ... #Aldosterone #Comparison
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
algorithm Decreased renal ... excretion • Acute renal ... failure • Chronic renal ... • Drugs • Diabetic ... high: • Post-renal
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
diarrhea / IBD Renal ... Loses - Medications ... - Transient renal ... - Familial renal ... #Diagnosis #Low
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
(Uncontrolled diabetes ... resistance Impaired Renal ... deficiency • Renal ... Type IV RTA • Renal ... Medications 2.
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Correction of diabetic ... (steatorrhea) Renal ... Tubulointerstitial renal ... #differential # ... hypomg
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
(Uncontrolled diabetes ... resistance Impaired Renal ... deficiency • Renal ... Type IV RTA • Renal ... Medications 2.
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
Agents Regulating Renal ... disequilibrium syndrome • Diagnosis ... Inhibitors of Renal ... #Diuretics #Renal ... #Medications #Table
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Diagnosis Algorithm ... Endocrine • Hypo ... Hyperthyroidism • Diabetes ... Metabolic • Renal ... Myasthenia Gravis Pharmacologic
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
immobility • Critical ... infarction, Acute renal ... Electrolytes: hypo ... #Elevated #CK #differential ... #diagnosis #rhabdomyolysis
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
109 mm Hg) with clinical ... eg, presence of renal ... • Vascular: Renal ... Renal parenchymal ... #Diagnosis #indications