Imaging Techniques Flashcards Preview

BOC > Imaging Techniques > Flashcards

Flashcards in Imaging Techniques Deck (28):
1

plain film radiography

x-ray

identify fx and dislocation , bone abnormalities.

2

arthrography

visual study of a joint via x-ray after injection of an opaque dye, air, or a combo into joint space

show disruption of soft tissue and loose bodies in a joint

3

arthorscopy

invasive.
fiber-optic endoscope used for performing surgical procedures

4

myelography

opaque dye is introduced into the spinal canal (epidural space) through lumbar puncture

detects: tumors, nerve root compression, disk disease

5

Computed Tomography

CT

fan-shaped x-ray beam, produces cross-sectional views of tissues; can view from multiple angles

6

bone scan

intravenous radioactive trace

dectects: bony lesions where there is inflammation

7

magnetic resonance imaging

MRI
powerful electromagnets.
produces clear image

8

ultrasonography

use of US to view location, measurement,, delineation of an organ or tissue by measuring the reflexion or transmission of high-freq US waves

9

Echocardiography

uses US to produce graphic record of internal cardiac structures

10

arteriogram

catheter inserted into blood vessel, contrast material injected, radiographs taken.

11

venogram

radiographic procedures used to image veins filled with contrast medium.

12

doppler ultrasonography

uses US to examine blood flow in the major arteries and veins in arms and legs.

dx: blood clot, venous insufficiency, arterial occlusions, abnormalities in blood flow

13

ECG

electrocardiogrpahy

records electrical activity of the heart to diagnose causes of abnormal cardiac rhythm and myocardial disease

14

EEG

electroencephalography

records electrical activity of the brain, to detect abnormal brain waves

15

EMG

electromyography

graphic recording of a muscle contraction and the amount of electrical activity generated in a muscle

16

RBC count

norm: 4.8-5.4 million/mm^3

detects anemias, prolonged infection, iron deficiencies, internal bleeding, cancers

17

hemoglobin measure

12-16.5 g/100 mL

assoc with RBC count, reflects overall blood volume

18

hematocrit

measures how much of total blood is made up of RBCs


norm: 38-54%

low hematocrit = anemia

19

WBC count

norm: 5000-9000/mm^3

used to determine presence of bacteria

20

platelet count

norm: 250,000-400,000/mm^3

low platelet count can lead to dangerous internal bleeding

21

serium cholesterol

desirable range :

22

Urinanalysis

specific gravity, pH, ketones, hemoglobin, protein, nitrate, microscopic examination, urine culture, electrolytes - hormones - and drug levels

23

specific gravity (urine)

ability of kidneys to concentrate and dilute fluids

24

pH (urine)

may be acidic in cases of diabetes or dehydration; alkaline urine is present in UTIs and kidney disease

glucose may indicate diabetes

25

ketones (urine)

indicate diabetes (byproduct of fat metabolism)

26

hemoglobin (urine)

may appear in urine after intense exercise or from kidney disease

27

protein (urine)

kidney disease

28

nitrate (urine)

infection