ALU 101 - Diagnostic tests
Study online at https://quizlet.com/_i20z3d
1. Involve the puncture or cutting of the skin or entry into an orifice: Invasive test
2. Test that takes multiple 2-D x-rays to give 3-D images: CT-Scan (tomo)
3. What is hounsfield unit?: Quantifies absorption levels of different tissues. Water being 0 units. (CT Scan)
4. Ultrasound utilizes high-frequency sound waves. Name the techniques used.-
: A-mode, B-mode, M-mode, grayscale, real-time, doppler
5. What are the advantages of ultrasounds?: Differentiate solid from fluid filled structures ; lower
cost ; portability ; accessibility ; no radiation
6. What are the he limitations of ultrasounds?: Low resolution ; relies on skill of technician ; noise
produced if soundwaves hit bones or gas
7. What is the difference between hypoechoic and hyperechoic tissues?: Hypoechoic
reflects few sound waves ex: fluids ; Hyperechoic reflects large number of sounwaves ex: fat
8. Name the most common contrast agents: Barium, Iodine, Gadolinium
9. What is the gold standard test to diagnose multiple sclerosis?: MRI
10. Name of small-lived radioactive substance used in nuclear medicine: Radioiso-
tope
11. What are radioactive iodine, technetium, thallium, gallium, indium?: Radionu-
clides
12. Especially useful for visualizing soft tissues (brain, spinal cord, individual
nerves): MRI
13. Creates images that depict the rates of physiologic processes (ex: blood flow,
oxygen usage, glucose metabolism): PET Scan
14. Uses a narrowly focused x-ray beam that circles rapidly around the body: -
CT-Scan
15. Used to visualize the major blood vessels in the body (heart, carotids, brain,
kidneys, lungs, leg): Angiography
16. Views in real-time moving parts of the body (ex: barium through the in-
testines): Fluoroscopy
17. Name 5 specific endoscopy tests: Colonoscopy, gastroscopy, bronchoscopy, cystoscopy, col-
poscopy, thorascopy, arthroscopy, duodenoscopy, rectoscopy
1/1
Study online at https://quizlet.com/_i20z3d
1. Involve the puncture or cutting of the skin or entry into an orifice: Invasive test
2. Test that takes multiple 2-D x-rays to give 3-D images: CT-Scan (tomo)
3. What is hounsfield unit?: Quantifies absorption levels of different tissues. Water being 0 units. (CT Scan)
4. Ultrasound utilizes high-frequency sound waves. Name the techniques used.-
: A-mode, B-mode, M-mode, grayscale, real-time, doppler
5. What are the advantages of ultrasounds?: Differentiate solid from fluid filled structures ; lower
cost ; portability ; accessibility ; no radiation
6. What are the he limitations of ultrasounds?: Low resolution ; relies on skill of technician ; noise
produced if soundwaves hit bones or gas
7. What is the difference between hypoechoic and hyperechoic tissues?: Hypoechoic
reflects few sound waves ex: fluids ; Hyperechoic reflects large number of sounwaves ex: fat
8. Name the most common contrast agents: Barium, Iodine, Gadolinium
9. What is the gold standard test to diagnose multiple sclerosis?: MRI
10. Name of small-lived radioactive substance used in nuclear medicine: Radioiso-
tope
11. What are radioactive iodine, technetium, thallium, gallium, indium?: Radionu-
clides
12. Especially useful for visualizing soft tissues (brain, spinal cord, individual
nerves): MRI
13. Creates images that depict the rates of physiologic processes (ex: blood flow,
oxygen usage, glucose metabolism): PET Scan
14. Uses a narrowly focused x-ray beam that circles rapidly around the body: -
CT-Scan
15. Used to visualize the major blood vessels in the body (heart, carotids, brain,
kidneys, lungs, leg): Angiography
16. Views in real-time moving parts of the body (ex: barium through the in-
testines): Fluoroscopy
17. Name 5 specific endoscopy tests: Colonoscopy, gastroscopy, bronchoscopy, cystoscopy, col-
poscopy, thorascopy, arthroscopy, duodenoscopy, rectoscopy
1/1
