31 results
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
• HTN, High Aldosterone ... Loop and thiazide diuretics ... Diagnosis #Algorithm #causes ... #potassium #low ... #nephrology
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Familial: Bartter syndrome ... and Gitelman syndrome ... - Acquired: Medications ... transplant, Diuretic ... #nephrology #magnesium
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
• Refeeding syndrome ... Thyrotoxicosis Medications ... • Discontinued diuretic ... Diagnosis #Algorithm #nephrology ... #low #potassium
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... gastrointestinal K loss • Renal ... hypokalemia • Renal ... Post-hypercapnia • Diuretics ... #nephrology #potassium
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... plasma insulin (treatment ... Villous adenoma Renal ... chewing tobacco, Renal ... differential #diagnosis #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
(late) • High ... Urine Cl-: Diuretics ... PRA: Renal artery ... Diagnosis #Algorithm #Nephrology ... #Causes
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
- Insulin (high ... Fanconi syndrome ... hypomagnesemia #Medications ... differential #diagnosis #nephrology ... #Causes #hypomg
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Causes of Hypomagnesemia ... (steatorrhea) Renal ... - Potassium depletion ... Tubulointerstitial renal ... #differential #medications
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
Hypertensive: • High ... aldosteronism • High ... >20 mEq/24 h - Diuretics ... Diagnosis #Algorithm #nephrology ... #causes #low #potassium
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
; High-Ceiling Diuretics ... Kidney stones caused ... Tolvaptan) • Treatment ... #Diuresis #Nephrology ... #Pharmacology #Medications