15 results
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Differential Diagnosis ... Algorithm Elevated ... or normal): • Primary ... Low PTH: • Elevated ... #Differential #
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
Diagnostic Approach to Hyperkalemia ... High Renin - Primary ... Ketoconazole Low ... #Algorithm #diagnosis ... #differential #
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
inhibitors - Primary ... Medications - Loop ... #Diagnosis #Low ... #Magnesium #Table ... #Classification
Increased Urination - Differential Diagnosis Framework - Increased Volume / Frequency
 • Increased osmotic load (Increased
Increased Urination - Differential ... urine (usually low ... kidney disease, Loop ... phase of ATN, Hypercalcemia ... urine osm): Primary
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... secreting tumor, Primary ... • HTN Absent: Loop ... #Diagnosis #Algorithm
Diagnostic algorithm for the workup of hypercalcemia. The diagnostic workup for patients presenting with hypercalcemia rests
Diagnostic algorithm ... sensitivity for correct classification ... FHH and 12% of primary ... #Workup #Differential ... #Algorithm
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Insufficiency Differential ... Diagnosis Algorithm ... hyponatremia, hyperkalemia ... baseline ACTH - Primary ... insufficiency • Low
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Hypomagnesemia - Differential ... Diagnosis Algorithm ... Urine Mg > 10g • Loop ... Diuretics • Hypercalcemia-PTH ... Hypomagnesemia #Magnesium #Low
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... Ureterosigmoidostomy Urinary ... #Diagnosis #Low ... #Potassium #Table ... #Classification
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Metabolic Alkalosis - Differential ... Diagnosis Algorithm ... Remote use of loop ... - Normal/low ... #Diagnosis #Algorithm