8 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Renal Loses - Medications ... - Uncontrolled diabetes ... #Low #Magnesium ... #Table #Classification ... Causes #Workup #hypomg
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Diagnosis Framework ... phlebotomy High ... (Uncontrolled diabetes ... Impaired Renal Excretion ... Medications 2.
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Causes of Hyperkalemia ... - Reduced Excretion ... - Differential Diagnosis ... • Diabetic nephropathy ... #Differential #Diagnosis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Diagnosis Framework ... phlebotomy High ... (Uncontrolled diabetes ... Impaired Renal Excretion ... Medications 2.
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... Etiology: • Medications ... • ↓ Renal K+ Excretion ... Elimination (see Table ... acidosis) • Low
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
disequilibrium syndrome • Diagnosis ... Loop Diuretics; High-Ceiling ... Hyponatremia • Hypercalcemia ... #Pharmacology #Medications ... #Table
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
Inadequate excretion ... Diabetes, diabetic ... Drug-associated: heparin, low-molecular-weight ... #Differential #Diagnosis ... #High #Potassium
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
- Allergies to medications ... ASA class If high ... Orthopedic • Low ... Diabetes regimen ... stratification #diagnosis