Lab technicians are often responsible for analyzing blood, urine, and other bodily fluid chemistries.Urinalysis is a common subfield of clinical chemistry.
This is an image of uric acid crystals found in a urine sample. This image along with many others can be found at Dr. Fogazzi's Bedside Urinary Microscopy Lecture Series (http://www.ndt-educational.org/fogazzislidepart1.asp)
This tutorial, hosted by the University of Utah Eccles Health Sciences Library, provides an overview of macro and microscopic urinalysis, and describes proper collection techniques.
Arterial Blood Gases Explained
A detailed explanation of arterial blood gases, how to do the blood draw, and interpret the tests.
Chemistry Tutorials and Quizzes
Bio Alive provides a collection of tutorials from different technical colleges demonstrating chemistry experiments or tasks.
Here are some reliable web sources where you can find more information about clinical chemistry: