12 results
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Approach to Hypomagnesemia ... intake, Gl loss, shift ... @NEPHKIDS1 #Hypomagnesemia ... #algorithm #differential ... #diagnosis #causes
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
Transcellular Shift ... Hypokalemia • Hypomagnesemia ... Increased Excretion - Renal ... #endocrinology ... #causes
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Differential Diagnosis Algorithm ... Medication • Hypomagnesemia ... Transcellular shift ... Differential #Diagnosis #Algorithm ... #Causes #Classification
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... Primary intestinal hypomagnesemia ... Low #Magnesium #Table ... Classification #Causes ... #Workup #hypomg
Hyperphosphatemia - Differential Diagnosis Algorithm
Transcellular Shift:
 • Rhabdomyolysis
 • Tumor Lysis
 • Metabolic or Respiratory Acidosis
Differential Diagnosis Algorithm ... Transcellular Shift ... Differential #Diagnosis #Algorithm ... #endocrinology ... #causes
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential Algorithm ... Intracellular Shift ... Renal artery stenosis ... #Diagnosis #Causes ... #Workup #Nephrology
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Diagnosis Algorithm ... - Evaluation of ... unclear (often the case ... Insufficiency #Diagnosis #Algorithm ... Stimulation #Test #Endocrinology
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Hypertension - Workup ... Approach (when evaluation ... with previously stable ... Vasculitis • Endocrinologic ... #Hypertension #Workup
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
Primary Adrenal ... aldosterone - Low in cases ... Insufficiency #Evaluation ... diagnosis #testing #endocrinology ... #workup
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory Evaluation ... decrease in most cases ... leukocytosis with a left shift ... the presence of renal ... ThromboticThrombocytopenicPurpura #Diagnosis #Workup