Chapter 1 Critical Thinking Flashcards
Describe how acute injury can be associated with vascular insufficiency.
an acute injury may be accompanied by a thrombus; thrombi can narrow the vessel, causing vascular insufficiency
Describe primary and secondary repair.
primary repair is regeneration, which is desirable; secondary repair is granulation formation (forms scar tissue)
Why is regeneration the more desirable of the two types of repair?
regeneration allows the original structure and function to be duplicated and restored
Explain what “additive” pathology means and how it affects the radiographic exposure factors.
additive pathology adds more tissues; technical factors must be increased to penetrate extra tissue
Explain what “destructive” pathology means and how it affects the radiographic exposure factors.
destructive pathology destroys tissue; technical factors must be adjusted for less penetration
There are four clinical cardinal symptoms, but a fifth symptom may be present. Explain what it is and why it might occur.
a fifth symptom is loss of function; its occurrence depends on the site and the extent of the injury
Explain how secondary union occurs.
to fill the void left by tissue damage, there is a tremendous proliferation of capillaries and fibroblasts creating granulating tissue; this is a long process that leaves scars in the form of fibrous connective tissue
Describe the difference between carcinoma and sarcoma. What is lymphoma? How is lymphoma different from leukemia?
most cancers originate from epithelial tissue and are called carcinomas; if the tumor is from non-epithelial tissue, it is a sarcoma; lymphoma is cancer of the lymphatic system; leukemia is malignancy of the blood and related organs
What are issues that the radiographer must be aware of when preparing to do a procedure on a patient with an infection?
must be aware of diseases that could be additive or destructive; have a basic understanding of the disease process; knowing complications and impact
