Diagnostic studies
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Diagnostic studies can be either noninvasive or invasive. Noninvasive studies do not require cutting or inserting anything into the body and include x-rays, MRI, CT scans, and ultrasounds. Invasive studies require inserting devices such as for colonoscopies, upper GI endoscopies, bronchoscopies, and cystoscopies. Common imaging tests include x-rays which use radiation to create pictures of bone and tissue, MRI which uses magnets to image soft tissues, and CT scans which combine x-rays with computers to create cross-sectional images of the body.
Diagnostic studies
- 1. DIAGNOSTIC STUDIES Jamilah Saad Alqahtani Nurse Lecturer, MSN, TOT, OR Nurse Specialist, RGN, BSN
- 2. DIAGNOS TIC STUDIES NONINVASIVE •done without cutting the body or putting something into the body INVASIVE •the body is "invaded" or entered by a needle, tube, device, or scope.
- 3. X-RAY (RADIOGRAP HY) Most common noninvasive and painless imaging procedure Used to study internal organ structures Dense structures (such as bone) will appear WHITE. Metal and contrast media (special dye used to highlight areas of the body) will also appear WHITE. Structures containing air will be BLACK, and muscle, fat, and fluid will appear as shades of GRAY.
- 5. MAGNETIC RESONANCE IMAGING (MRI) used to identify tumors, bleeding, and injury contrast material may be used to show abnormal tissue more clearly and visible.
- 7. COMPUTED TOMOGRAPHY (CT) uses X-rays to make detailed pictures of structures inside of the body. the CT scanner provides a picture of a thin slice of the organ or area being studied. contrast agents may be used to make the structures and organs easier to see on the CT pictures.
- 9. SONOGR APHY Also called ultrasound, uses sound waves to develop images of what's going on inside the body. determine the size, shape, and consistency of soft tissues and organs. determine due dates, reveal the presence of twins or other multiples, and the gender (sex) of the baby/ies.
- 11. COLONOSCOPY The visualization of the rectum and colon (large intestine) using a well-lubricated colonoscope inserted through the anus. Confirms the presence of ulcers, inflammation, tumors, or bleeding. Perform colon preparation such as clear liquid diet before the test.
- 12. UPPER GI ENDOSCOPY A visual examination of the upper intestinal tract. An anesthetic spray is applied on the throat before inserting endoscope Helps diagnose tumors, ulcers and bleeding.
- 13. BRONCHOSCOPY A test to view the airways and diagnose lung disease using a bronchoscope inserted through the mouth. Used to remove foreign bodies and mucus and to obtain sputum and tissue specimens.
- 14. CYSTOSCOPY A test that allows visualization of the bladder and urethra using a cystoscope. Helps to confirm cancer of the bladder or urethra and diagnose urinary tract disorders and infections. Also confirms presence of stones.
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