30 results
Lab patterns seen in Inborn Errors of Metabolism

A table of lab values compiled from UpToDate and
Metabolism A table ... along with my own additions ... metabolicemergency-pathophysiology-differential-pediatrics-metabolism-algorithm-diagnosis ... Peds #Pediatrics #Table
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Normal, Renin High ... • Drugs • Addison's ... hypoplasia Aldosterone high ... nephrology #potassium #differential
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Renal failure, Addison's ... Hypercalcemia #Causes #differential ... diagnosis #calcium #high
Suspected Celiac Disease - Diagnosis Algorithm

Celiac disease suspected:
 • Signs and symptoms of celiac disease
 •
hepatitis, T1DM, Addisons ... microscopic colitis Differential ... • Lymphoma • High
Hyperaldosteronism - Etiologies of Mineralocorticoid Excess

Primary Hyperaldosteronism (Normal or Low Renin, High Aldosterone) 
 - Aldosterone-secreting
or Low Renin, High ... Hyperaldosteronism (High ... Renin, High Aldosterone ... Hyperaldosteronism #Differential ... Aldosterone #Comparison #Table
Etiologies of Hypoaldosteronism

Hyporeninemic Hypoaldosteronism (Low Renin, Low Aldosterone)
 - Diabetic Nephropathy 
 - NSAIDs
Non-Hyporeninemic Hypoaldosteronism (Normal
Hypoaldosteronism (Normal or High ... Resistance (Normal or High ... Renin, Normal or High ... Hypoaldosteronism #Differential ... Aldosterone #Comparison #Table
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
Hypermagnesemia #Differential ... #Diagnosis #High ... #Magnesium #Table
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... phlebotomy High ... Excretion: • Addison ... #hyperkalemia #differential ... causes #potassium #high
Pediatric Vomiting - Gastrointestinal and Systemic Causes - Differential Diagnosis Algorithm
Hepatobiliary:
 • Acute Hepatitis
 • Acute
Systemic Causes - Differential ... Hypercalcemia • Addison's ... Carbon Monoxide High ... Emesis #Vomiting #Differential
Thrombotic Microangiopathy - TTP VS HUS

Big picture points : Often hard to differentiate the two entities,
Often hard to differentiate ... implications : TTP has high ... Comparison #Diagnosis #Table