29 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Medications - Loop ... and thiazide diuretics ... - Osmotic diuresis ... Post-obstructive diuresis ... #Workup #hypomg
Diuretics - Pharmacology

Thiazides diuretics:
 • Inhibit Na+ Cl- cotransporter in distal tubule
 • Chlorothiazide, Chlorthalidone, Indapamide,
Diuretics - Pharmacology ... Thiazides diuretics ... diuretics: • ... Piretanide Potassium ... Pharmacology #nephrology #conversion
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Diagnosis Algorithm ... Syndrome • HTN, High ... • HTN Absent: Loop ... and thiazide diuretics ... #causes #potassium
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... Differential Diagnosis Algorithm ... Clinicians should also look ... Post-hypercapnia • Diuretics ... #potassium
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
- Insulin (high ... foscarnet - Diuretics ... diuretics ... antiretroviral therapy - Diuretics ... #hypomg
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Saline or osmotic diuresis ... - Potassium depletion ... disease Drugs: - Loop ... diuretics - Aminoglycosides ... #pharmacology #hypomg
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Causes of High-anion ... of High-anion Gap ... , ileal loop ... Potassium-sparing ... diuretics (amiloride
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
Hypokalemia Differential ... Diagnosis Algorithm ... >20 mEq/24 h - Diuretics ... #nephrology #causes ... #low #potassium
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
Algorithm for patients ... with hypokalemia ... Urine Cl - Loop ... diuretics, Thiazide ... diuretics, Mg2+
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Causes of Hypomagnesemia ... Differential Diagnosis Algorithm ... Urine Mg > 10g • Loop ... DiureticsHypercalcemia-PTH ... syndrome • Thiazide Diuretics