9 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Renal Loses - Medications ... - Uncontrolled diabetes ... #Diagnosis #Low ... Classification #Causes ... #Workup #hypomg
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
(Uncontrolled diabetes ... Medications 2. ... #diagnosis #causes ... #potassium #high ... #nephrology
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Causes of Hypomagnesemia ... Correction of diabetic ... osmotic diuresis - Potassium ... #diagnosis #differential ... #medications #drugs
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
(Uncontrolled diabetes ... Medications 2. ... #diagnosis #causes ... #potassium #high ... #nephrology
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
• Nephrogenic diabetes ... Kidney stones caused ... Lithium-induced nephrogenic diabetes ... DDAVP) • Central diabetes ... #Pharmacology #Medications
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Causes of High-anion ... Ketoacidosis: Diabetic ... Potassium-sparing ... #diagnosis #causes ... #nephrology
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
and Differential ... (when evaluation ... Vasculitis • Endocrinologic ... #causes #Differential ... #Diagnosis #indications
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
urine Na/Cl < 0.7, high ... correcting serum potassium ... Other medications ... #differential # ... algorithm #nephrology
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Etiology: • Medications ... infusion, Calcineurin inhibitors ... reabsorption) Workup ... STOP offending medications ... #nephrology #K