12 results
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Causes of Hypomagnesemia ... Diuretics • Hypercalcemia-PTH ... -1beta, cyclin M2 ... Hypomagnesemia #Magnesium ... #Low #Causes #Differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
- Uncontrolled diabetes ... #Differential #Diagnosis ... #Low #Magnesium ... #Table #Classification ... #Causes #Workup
Types of Renal Calculi

Calcium oxalate
 - Interstitial apatite plaque, Low urine volume, Increased urinary calcium excretion,
hypercalciuria, Hypercalcemia ... Struvite - Magnesium ... , High dietary magnesium ... #differential #diagnosis ... #causes #calculus
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
potassium(K) & magnesium ... A urine K/Cr ratio ... • Diarrhea A urine ... consumption • Low ... #diagnosis #Algorithm
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential Diagnosis ... Diabetes Insipidus ... • Central Dl (Low ... Hereditary, Lithium, Hypercalcemia
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Causes of Hyperkalemia ... - Differential Diagnosis ... nephron - TTKG > 7, Urine ... • Diabetic nephropathy ... #Algorithm #Causes
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... - Differential Diagnosis ... isolation) GI loss - Urine ... Gittelman's syndrome • Magnesium ... #Differential #Diagnosis
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... lysis) ± Urine ... only if no clear cause ... Elimination (see Table ... acidosis) • Low
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... volume-based algorithm Urine ... : Hypovolemia, Hypervolemia ... #differential #diagnosis ... #table #sodium
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
disequilibrium syndrome • Diagnosis ... Hyponatremia • Hypercalcemia ... Kidney stones caused ... Diuresis #Nephrology #Pharmacology ... #Medications #Table