Related Experiment Video
Updated: Feb 17, 2026

Measurement of Tissue Non-Heme Iron Content using a Bathophenanthroline-Based Colorimetric Assay
Published on: January 31, 2022
Endoscopic evaluation of iron deficiency anemia
Abstract:
Preview Iron deficiency occurs in about 2% of US adults over age 50 and is a common cause of anemia. Opinions differ on the approach to evaluation of iron deficiency anemia in older patients, and studies have yielded conflicting results. What is the best diagnostic strategy? The authors review study results for the various options and recommend a stepwise, systematic approach to evaluation.
Related Concept Videos
Endoscopic Procedures I: Esophagogastroduodenoscopy
During an EGD, the endoscope can be used to:
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Endoscopic Procedures V: ERCP
Patient...
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Lower GI Series: Barium Enema
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
Upper GI Series: Barium Swallow
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...

