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ECG Changes in Hyperkalemia and Treatment
Membrane Stabilization
 - Calcium gluconate or chloride 
Redistribution
 - Insulin
ECG Changes in Hyperkalemia ... and Treatment ... Hemodialysis #Hyperkalemia ... #Treatment #Management ... #Diagnosis #ECG
Hypercalcemia - EKG Findings
Causes of Hypercalcemia 
• Malignancy 
• Milk-alkali syndrome 
• Vitamin D toxicity 
•
Hypercalcemia - ... EKG Findings Causes ... • Milk-alkali syndrome ... #EKG #ECG #Electrocardiogram ... #Differential #Causes
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens ... repolarization; changes ... repolarization causes ... #EKG #ECG #Changes ... #Progression #Table
Compelling and Possible Contraindications to Antihypertensive Drugs
Diuretics (thiazides)
 - Gout
 - Metabolic syndrome, Glucose intolerance, Pregnancy,
- Metabolic syndrome ... potential Ca2+ channel ... failure Ca2+ channel ... Pgp-dependent drugs (e.g ... contraindications #table
BRASH Syndrome

B - Bradycardia
R - Renal failure
A - AV nodal blockade
S - Shock
H - Hyperkalemia

Typical ECG
BRASH Syndrome ... Typical ECG ... ) BRASH Treatment ... • Aggressive treatment ... • If on a Ca2+ channel
Emergency Management of Hyperkalemia in Adults
Assess Patient - Airway Breathing Circulation Disability Exposure (ABCDE) Approach
 •
Management of Hyperkalemia ... mmol/L - Consider cause ... clinical scenario, ECG ... Prevention - Consider cause ... of hyperkalaemia
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Hyporeflexia: • Hypercalcemia ... polyneuropathy (e.g ... Guillain-Barré syndrome ... Hyperthyroidism, Serotonin syndrome ... differential #diagnosis #table
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
abnormalities - Hypercalcemia ... - Hypokalemia ... - Hungry bones syndrome ... Low #Magnesium #Table ... Classification #Causes
Bradycardia - Differential Diagnosis Framework

BRADI Mnemonic
 • BRASH/Hyperkalemia
 • Reduced oxygen/Glucose/Temp
 • ACS
 • Drugs
 •
- Hyperkalemia ... blockers • Calcium channel ... Typhoid fever • Chagas ... Spondylarthropathies Other causes ... differential #diagnosis #causes
Causes of Hypercalcemia
Parathyroid hormone–dependent
Primary hyperparathyroidism
Familial hypocalciuric hypercalcemia
Lithium-associated
Tertiary hyperparathyroidism
Genetic disorders (e.g., multiple endocrine neoplasia type 1 or
Causes of Hypercalcemia ... hypocalciuric hypercalcemia ... Genetic disorders (e.g ... Other humoral syndromes ... #Causes #Differential