18 results
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Transcellular Shifts: - Alkalosis ... plasma insulin (treatment ... , nasogastric suction ... syndrome (mimics loop ... #differential #diagnosis
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Diagnosis Algorithm ... Transcellular Shift: • Alkalosis ... GI losses (NG suction ... • Discontinued diuretic ... nephrology #low #potassium
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Remote use of loop ... blood pressure: Active ... diuretic use, Bartter ... of sodium and potassium ... #differential #diagnosis
Hyperkalemia Treatment Options
Stabilize cardiac membrane:
 • IV Calcium (peaks 5-10 minutes)
Decrease potassium concentration:
 • IV Fluids
Shift
Hyperkalemia Treatment ... excretion: • ... renal function) - Loop ... diuretic (often ... LouLectures #Hyperkalemia
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
, ileal loop ... Potassium-sparing ... diuretics (amiloride ... ketosis with ketone excretion ... #differential #diagnosis
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... • ↓ Renal K+ Excretion ... suggests ↓ renal excretion ... (IV loop diuretic ... #Treatment #potassium
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
Non-reabsorbable anion ... High Urine Cl - Loop ... diuretics, Mg2+ ... #urine #potassium ... differential #algorithm #diagnosis
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
: Differential Diagnosis ... vomiting/ nasogastric suction ... diuretics after ... other • Severe potassium ... #Differential #Diagnosis
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
- Nasogastric suction ... - Potassium depletion ... disease Drugs: - Loop ... diuretics - Aminoglycosides ... Hypomagnesemia #Causes #diagnosis
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
Regulating Renal Excretion ... • Metabolic alkalosis ... disequilibrium syndrome • Diagnosis ... +2Cl- Symport (Loop ... Tolvaptan) • Treatment