3 results
Hyponatremia - Diagnostic Evaluation Algorithm

Step 1: Consider whether Posm may actually be normal or elevated
Step 2:
may actually be normal ... or elevated Step ... Consider additional tests ... considered likely, the cause ... Hyponatremia #Diagnosis #Workup
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory Evaluation ... value is low, tests ... or slightly elevated ... indirect antiglobulin tests ... ThromboticThrombocytopenicPurpura #Diagnosis #Workup
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
Plasma ACTH - Elevated ... aldosterone - Low in cases ... aldosterone - Often normal ... Insufficiency #Evaluation ... endocrinology #workup