12 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Renal Loses - Medications ... - Hypokalemia ... Hypomagnesemia #Differential ... Low #Magnesium #Table ... Classification #Causes
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... phlebotomy High ... • K sparing diuretics ... Medications 2. ... diagnosis #causes
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... phlebotomy High ... • K sparing diuretics ... Medications 2. ... diagnosis #causes
Causes of Hyperkalemia - Differential Diagnosis Framework
 • Cellular Shift:
   - Exercise
Causes of Hyperkalemia ... hyperosmolality - Medications ... Aldosterone: K sparring diuretics ... Crush injury, Hemolysis ... #potassium #high
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
associated with hypokalemia ... - Insulin (high ... hypomagnesemia #Medications ... #differential # ... diagnosis #nephrology #Causes
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Etiology: • Medications ... injury, ischemia, hemolysis ... only if no clear cause ... Elimination (see Table ... STOP offending medications
Potassium-Binding Agents to Treat Hyperkalemia
Sodium zirconium cyclosilicate (Lokelma):
 • Mechanism: Preferentially captures K in exchange for
constipation, diarrhea, nausea ... ); nausea, vomiting ... patients sensitive to high ... #medications #pharmacology ... #table #comparison
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
; High-Ceiling Diuretics ... Hyponatremia • Hypercalcemia ... Kidney stones caused ... #Nephrology #Pharmacology ... #Medications #Table
Hyperuricemia - Differential Diagnosis Algorithm
Primary - Over-production
     • Increased turnover of nucleotides
Primary
Leukemia (CML) - Hemolytic ... Drug-induced • High ... Sarcoidosis • Hypercalcemia ... Cyclosporine • Diuretics ... endocrinology #causes
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... can be high or ... : Hypovolemia, Hypervolemia ... #Hyponatremia #differential ... #diagnosis #table