4 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 ... considered likely, the cause ... Hyponatremia #Diagnosis #Workup ... #Evaluation #Algorithm
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory Evaluation ... or slightly elevated ... or may not be elevated ... the presence of renal ... 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
Elevated Globulin - Protein Gap (Total Protein - Albumin > 4)

Work-up of an Elevated Globulin Gap:
•
Elevated Globulin ... Albumin > 4) Work-up ... first step in evaluation ... cancers, HCC, renal ... chain assay • An abnormal