Imaging Techniques Flashcards Preview

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Flashcards in Imaging Techniques Deck (28)
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1
Q

plain film radiography

A

x-ray

identify fx and dislocation , bone abnormalities.

2
Q

arthrography

A

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
Q

arthorscopy

A

invasive.

fiber-optic endoscope used for performing surgical procedures

4
Q

myelography

A

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

detects: tumors, nerve root compression, disk disease

5
Q

Computed Tomography

A

CT

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

6
Q

bone scan

A

intravenous radioactive trace

dectects: bony lesions where there is inflammation

7
Q

magnetic resonance imaging

A

MRI
powerful electromagnets.
produces clear image

8
Q

ultrasonography

A

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
Q

Echocardiography

A

uses US to produce graphic record of internal cardiac structures

10
Q

arteriogram

A

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

11
Q

venogram

A

radiographic procedures used to image veins filled with contrast medium.

12
Q

doppler ultrasonography

A

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
Q

ECG

A

electrocardiogrpahy

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

14
Q

EEG

A

electroencephalography

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

15
Q

EMG

A

electromyography

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

16
Q

RBC count

A

norm: 4.8-5.4 million/mm^3

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

17
Q

hemoglobin measure

A

12-16.5 g/100 mL

assoc with RBC count, reflects overall blood volume

18
Q

hematocrit

A

measures how much of total blood is made up of RBCs

norm: 38-54%

low hematocrit = anemia

19
Q

WBC count

A

norm: 5000-9000/mm^3

used to determine presence of bacteria

20
Q

platelet count

A

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

low platelet count can lead to dangerous internal bleeding

21
Q

serium cholesterol

A

desirable range :

22
Q

Urinanalysis

A

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

23
Q

specific gravity (urine)

A

ability of kidneys to concentrate and dilute fluids

24
Q

pH (urine)

A

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

glucose may indicate diabetes

25
Q

ketones (urine)

A

indicate diabetes (byproduct of fat metabolism)

26
Q

hemoglobin (urine)

A

may appear in urine after intense exercise or from kidney disease

27
Q

protein (urine)

A

kidney disease

28
Q

nitrate (urine)

A

infection

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