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RCE > Contrast Media > Flashcards

Contrast Media Flashcards

1
Q

Paste Mixture

A

3/4 barium sulfate 1/4 water

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2
Q

substances having high or low atomic numbers compared having adjacent structures

A

Contrast Media

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3
Q

Thick Mixture

A

1/2 barium sulfate 1/2 water

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4
Q
  • substance that partially absorb x-ray
  • it appears black on the radiograph
A

RADIOLUCENT OR NEGATIVE CONTRAST AGENTS

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5
Q

Barium Enema

A

Thin Mixture

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6
Q

Cardiac Series

A

Thick mixture

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7
Q

It cannot be dissolves in water

A

Colloidal Suspension

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8
Q

Administered to the body to fill on the hollow organs and make it visible to the film.

A

Contrast Media

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9
Q

Most commonly used air contrast media?

A
  1. Calcium Carbonated Crystal (Gastroluft)
  2. Magnesium Citrate
  3. Room air
  4. Carbonated beverages
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10
Q

What are the methods of administration of Contrast media?

A
  1. Oral
  2. Parenteral ( Intravenous, Intrathecal, Intra-arterial)
  3. Intubations (T-tubes, nasograstic)
  4. Rectal (Catheters)
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11
Q

Thin Mixture

A

1/4 barium sulfate 3/4 water

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12
Q

U.G.I.S

A

Thick mixture

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13
Q

Milk Mixture

A

2 tbsp. barium sulfate 1 glass water

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14
Q

What are the purpose of scout film?

A
  1. To check for the proper preparation of the patient.
  2. To check for the correct position of organ to be examined.
  3. To draw out the presence of foreign bodies and other calcification
  4. To compare the film with contrast media with that of the scout film.
  5. To adjust the correct factor to be used.
  6. To localize the exact localization point.
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15
Q

Substance that absorb x-ray

A

RADIOPAQUE OR POSITIVE CONTRAST AGENTS

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16
Q

Esophagram

A

Paste mixture

17
Q

What are the common substances as Contrast Media?

A
  1. Air and Gases
  2. Heavy Metallic Salts
  3. Inorganic Iodides
  4. Organic Iodides
  5. Iodized Oil (Abosorbable)
  6. Iodized Oil (Non-absorbable)
18
Q

What are the forms of Contrast Media?

A
  1. Solution
  2. Tablet
  3. Granules or powder
19
Q

uses two kinds of c.m. in different manner of introduction.

A

Dual contrast study

20
Q

What are the 2 types of Contrast Media?

A
  1. Radiolucent
  2. Radiopaque
21
Q

a small amount of c.m. is used just to coat or paint the lining membrane of the hollow organ under study.

A

Mucosal phase study

22
Q

uses two kind of contrast media.

A

Double contrast study

23
Q

a full dose of c.m. is used for study of general outline, shape, size, position as well as the anatomical contour and morphological deformities.

A

Filling phase study

24
Q

Render white image on the film because it is positive contrast media having a high atomic number.

A

BARIUM SULFATE (BaSO4)

25
Q

also called survey films, preliminary film, plain film, and initial film.

A

Scout Film

26
Q

What are the qualities of good contrast media?

A
  1. It must clearly show the structure creating a different marked contrast with the density of the surrounding tissue.
  2. It must be physiologically inert.
  3. It must produced as little toxicity as possible to the patient.
  4. It must be eliminated unchanged
27
Q

A non absorbable contrast media, it causes constipation when it stays for a long period of time inside the colon.

A

BARIUM SULFATE (BaSO4)

28
Q

What are the types of radiographic contrast study?

A
  1. Single Contrast Study
  2. Double Contrast Study
  3. Dual Contrast Study
  4. Mucosal Phase Study
  5. Filling Phase Study
29
Q

uses one kind of contrast
medium.

A

Single contrast study

30
Q

What are the rules in giving contrast media?

A
  1. Be sure that you have the right patient by asking the name and carefully checking the name in the chart.
  2. Be sure that you have the right contrast media at the right time before doing the procedures.
  3. Be sure that you have the right contrast media and the right amount.
  4. Never hold the tablet or powder form contrast media with your bare hands.
  5. Record on the chart of the patient the amount of contrast media used and write initial on the chart.
31
Q

What are the disadvantages in using Barium sulfate?

A
  1. Colloidal Suspension
  2. Contra-indication
32
Q

S.I.S

A

Thick mixture

33
Q

What are the qualities of Barium sulfate?

A
  1. High atomic number
  2. Relatively cheap
  3. Less irritating
  4. Non-absorbable

RCE (11 decks)

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