1. Keep & Study in ISN for Quiz next class
WELCOME BACK!!!
Pick Up & Complete
Foodborne/Waterborne Bacterial Diseases Diagram Notes p.77 (Read & Color all parts)
Keep & Study in ISN for Quiz next class

2. CLASS SET # ______ Notes: Intro to Pathophysiology (BASICS)
Answer the PPT Review Questions with this PPT
Return to Rm. B228

3. Intro. Patho PPT Questions:
Define Pathophysiology.
Define Pathology.
Why is pathophysiology studied?
What is a pathologist?
What is a histologic technician/histotechnologist?
What type of studies are performed in the clinical pathology laboratory?
What is the basic stain for all tissues?
Special stains are used for __________.
Why does a pathologist study slides?
What do pathologist perform frozen sections for?

4. Notes: Intro to Pathophysiology (BASICS)
CLASS SET

5. PATHOPHYSIOLOGY DEFINED
Involves the study of function that results from disease processes.

6. PATHOPHYSIOLOGY
What is pathology?

7. Pathology is the branch of medical sciences that treats the essential nature of disease, especially the changes of structure and function in tissues and organs of the body that cause or are caused by disease.

8. Why is pathophysiology studied?
In the clinical setting, pathologists, histotechnologists, and cytotechnologist study tissues and cells to establish the cause of a disease.
Physicians use that information to form a treatment plan.

9. What is a pathologist?

10. A pathologist is a physician who is specifically trained and experienced in anatomical and physiological pathology.

11. What is a histologic technician or histotechnologist?

12. Histologic technicians and Histotechnologists prepare slides of body tissue for microscopic examination.
Career opportunities for both are excellent in hospitals, research institutions, industrial labs, and government agencies
A technician requires a 12-month, hospital-based on-the-job training program or an AAS degree.
A histotechnologist requires a BS degree and one year of additional laboratory experience.

13. What type of studies are performed in the clinical pathology laboratory?

14. Tissue of all types are sent to the histology department for studies into the disease process.

15. The pathologist studies the tissue by doing a gross examination.

16. Tissues are looked at closely and all observations are recorded.

17. The tissue is then prepared for microscopic studies by placing it in a tissue cassette.

18. The histotechnologist prepares the tissue for microscopic examination
The histotechnologist prepares the tissue for microscopic examination. This is done by using the embedding center. The tissue is placed in paraffin wax in order to cut thin slices of the tissue.

19. The embedding center instrument

20. The histotechnologist pours paraffin wax over a tissue specimen.

21. Once the tissue is embedded in paraffin, the block of wax is cooled
Once the tissue is embedded in paraffin, the block of wax is cooled. The histotechnologist then cuts ribbon-like sections for placement on slides. The instrument used is called a microtome.

22. A water bath is used for spreading the paraffin ribbons and sections are placed on microscope slides to be stained.

23. Tissues are stained at the staining center
Tissues are stained at the staining center. The basic stain for all tissues is the Hemotoxylin and Eosin (counterstain) stain.

24. Special stains are used for particular details. They include:
AFB-Acid Fast Bacilli Stain
PAS-Periodic Acid Schiff Stain
Trichrome Stain
Iron Stain

25. The pathologist then studies the slide to determine pathological states within the tissues. A written report is then given to physician to aid him/her in the diagnosis and treatment of the patient.

26. PATHOPHYSIOLOGY
Pathologists also perform frozen sections for patient’s in surgery on the Cryostat.

27. PATHOPHYSIOLOGY
Exciting opportunities await students who want to explore the physiology of the tissues and cells under the microscope!

28. Use the CLASS SET of 16 Virus Information Packets for help (Pink)
Virus ID Chart Notes
Use the CLASS SET of 16
Virus Information Packets for help
(Pink)

29. H. W. Due Next Class…
Study for Quiz: Food/Waterborne Illnesses (p.77) & Intro to Patho BASICS