33 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Insipidus Workup ... Step #1 - Consider ... history Step #2 ... & desmopressin test ... #Sodium #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
Causes of Hypokalemia ... discrete buckets: 1. ... (low intake) 2. ... #Algorithm #Causes ... #workup #nephrology
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential ... Algorithm Acidosis ... #Differential #Algorithm ... #Diagnosis #Causes ... #Workup #Nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Workup Algorithm ... 1) Check Urine ... renal mechanism 2) ... #Workup #Algorithm ... #nephrology #sodium
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
- Diagnosis Algorithm ... Plasma AND • Sodium ... Osmolality, Urine 1- ... 2 hrs post administration ... #Diagnosis #Algorithm
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... the cause of hypokalemia ... acidosis (type 1 ... of 2), Ureterosigmoidostomy ... #algorithm #causes
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
mutations in AQP-2 ... uropathy, Metabolic causes ... (e.g., hypokalemia ... Treatment is aimed ... #Diagnosis #Differential
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
- Differential Diagnosis ... (correction of hypokalemia ... Oral sodium loading ... syndrome - Overnight 1- ... #Workup #table
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
1 . ... Repeat the sodium ... Step 2. ... #Workup #Algorithm ... #Nephrology
Hyponatremia - Diagnostic Evaluation Algorithm

Step 1: Consider whether Posm may actually be normal or elevated
Step 2:
Step 1: Consider ... elevated Step 2: ... Consider additional tests ... considered likely, the cause ... #Workup #Evaluation