41 results
Potassium-Binding Agents to Treat Hyperkalemia
Sodium zirconium cyclosilicate (Lokelma):
 • Mechanism: Preferentially captures K in exchange for
Agents to Treat Hyperkalemia ... K; also binds magnesium ... constipation, diarrhea, nausea ... nonspecifically binds K, magnesium ... ); nausea, vomiting
Clinical Feature of Hypomagnesemia and Magnesium Deficiency
 • Electrolyte Disturbance: Hypokalemia, Hypocalcemia
 • Neuromuscular and central
Clinical Feature ... Hypomagnesemia and Magnesium ... Electrolyte Disturbance: Hypokalemia ... , Hypocalcemia ... Athetoid movements & choreiform
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation ... Before evaluating hypokalemia ... potassium(K) & magnesium ... wasting from other causes ... suggests extra-renal causes
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Diagnosis Renal Causes ... with secondary, hypocalcemia ... hypomagnesemia Renal Causes ... differential #diagnosis #causes ... #nephrology #magnesium
Checklist Approach to Hypokalemia

Consider risk factors for arrhythmia:
 - EKG changes (especially QT prolongation)
 - Digoxin
Evaluation - Check magnesium ... incongruous with clinical ... EKG) Consider magnesium ... arrhythrnia (aggressive magnesium ... Internet Book of Critical
Potassium Electrolyte Repletion
If patient also has hypomagnesemia, replete magnesium before repleting potassium
Oral:
 • Pills (ask pharmacy
hypomagnesemia, replete magnesium ... Intravenous (can cause ... Repletion #management #hypokalemia
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
Alkalosis • Hypokalemia ... : • Aluminum/Magnesium ... endocrinology #causes
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... Decreased intake (rare cause ... paralysis/familial hypokalemic ... Gittelman's syndrome • Magnesium ... Diagnosis #Algorithm #Causes
Chvostek Sign on Physical Exam

Young man presented with history of fatigue, muscle cramps and features suggestive
Serum magnesium ... #PhysicalExam #Clinical ... #Video #Hypocalcemia
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypercalcemia - Hypokalemia ... Diagnosis #Low #Magnesium ... Classification #Causes