457 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Loop and thiazide diuretics ... Hypokalemia - Osmotic diuresis ... Post-obstructive diuresis ... Classification #Causes ... #Workup #hypomg
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... concentrating defect: • Diuretics ... • Osmotic diuresis ... Differential #Diagnosis #Causes
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis Workup ... • Hypovolemic: Diuretics ... osmotic (solute) diuresis ... Differential #Diagnosis #Workup
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Diuretics (discontinued ... Algorithm #Diagnosis #Causes ... #Workup #Nephrology
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... thiazide-like diuretics ... Postobstructive diuresis ... , Osmotic diuresis ... #Hypokalemia #Causes
Causes of Approach to Altered Level of Consciousness - Workup
Clinical Exam - Focal
 • Trauma
 •
Causes of Approach ... Consciousness - Workup ... Refer to Blood Work ... #diagnosis #workup ... #algorithm #Causes
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
Diuretics and Agents ... Altitude sickness • Diuretic ... Symport (Loop Diuretics ... ; High-Ceiling Diuretics ... Kidney stones caused
Diuretics - Pharmacology

Thiazides diuretics:
 • Inhibit Na+ Cl- cotransporter in distal tubule
 • Chlorothiazide, Chlorthalidone, Indapamide,
Diuretics - Pharmacology ... Thiazides diuretics ... Metolazone Loop diuretics ... Potassium sparing diuretics ... loop #thiazide #classes
Anemia - Workup and Differential Diagnosis
 - History, Physical Exam, Labs
 - Microcytic
 - Normocytic
 -
Anemia - Workup ... Hemolytic #Anemia #Workup ... Differential #Diagnosis #causes
Hypercalcemia Workup and Differential Diagnosis Framework
1) Determine whether PTH-dependent
2) Assess for other hormonal causes
3) Assess for
Hypercalcemia Workup ... other hormonal causes ... for non-hormonal causes ... Hypercalcemia #Workup