Contrast Medium Flashcards
Most commonly used air contrast media?
Calcium carbonated crystal (Gastroluft)
Magnesium Citrate Room Air
Carbonated Beverages
Uses two kinds of contrast media for the study?
Double contrast study
How to make paste mixture barium sulfate?
3/4 BaSO4 with 1/4 H2O
What contrast agent is radiopaque?
Positive Contrast Agents
What type of barium suspension should be prepared for a S.I.S. Study?
Thick mixture
Examples of Iodized Oil (non-absorbable) contrast media?
Lipiodol and Iodochlorol (used in examinations of salivary glands)
What are the rules in giving contrast media?
Confirm Identity of patient by asking and checking the chart.
Ensure correct contrast medium is used and is applied at the right time
Ensure the right amount, and variant of contrast is used.
Never hold the tablet or powder form with your bare hands
Record on the chart the amount of contrast, name of contrast used with initials on the chart.
How to make milk mixture barium sulfate?
2 Tbsp BaSO4 with a glass of water
What does U.G.I.S. stand for?
Upper Gastrointestinal Series
How to make thick mixture barium sulfate?
1/2 BaSO4 mixed with 1/2 H2O
Suspension that cannot be dissolved in water?
Colloidal Suspension
Uses two kinds of contrast media in different manner of introduction for the study?
Dual contrast study
Examples of inorganic iodides contrast media?
Sodium, Potassium and Silver Iodides (used in Pyelography or Urography)
Enumerate the disadvantages of using BaSO4?
Colloidal Suspension
Contra-Indication
Give an example of Positive contrast agents?
Barium Sulfate or Water-soluable Iodine Contrast Media
Contrast agents that partially absorb x-rays appearing black on a radiograph?
Negative Contrast Agents
Examples of Organic Iodides contrast media?
Telepaque/Iopanoic Acid (used in Cholecystography and Angiography)
What are the qualities of Barium sulfate?
High atomic number
Relatively Cheap
Less irritating
Non-absorbable
Substances having high or low atomic number compared to adjacent structures that are administered to the body to fill a hollow organ to make it visible on film and differentiate densities inside the body?
Contrast media
How to make thin mixture barium sulfate?
1/4 BaSO4 mixed with 3/4 H2O
What type of barium suspension should be prepared for a cardiac series exam?
Thick mixture
What contrast agents is radiolucent?
Negative Contrast Agents
Enumerate the types of radiographic contrast studies?
Single Contrast Study Double Contrast Study Dual Contrast Study Mucosal Phase Study Filling Phase Study
Alternative name for scout film?
Survey film
Preliminary Film
Plain Film
Initial Film
Uses one kind of contrast media for the study?
Single contrast study
What is the purpose of scout films?
Check for proper preparation of patient Check for correct position of organ to be examined To draw out the presence of foreign bodies and other classifications To compare the film with contrast media with that of the scout film To adjust the correct factor to be used To localize the exact localization point;
A small amount of contrast media is used just to coat or paint the lining membrane of the hollow oran under study?
Mucosal Phase study
Examples of Heavy Metallic Salts contrast media?
Barium Sulfate (used in Barium Enemas and gastro-intestinal series)
Enumerate the forms of Parenteral administration of contrast media?
Intravenous
Intrathecal
Intra-arterial
Two contraindications for BaSO4 studies?
Perforations suspected
Scheduled surgeries after examination of Lower G.I. Tract
Enumerate the forms of Intubation administration of contrast media?
T-tubes
Nasogastric Catheters
Enumerate the types of barium sulfate mixtures?
Paste Mixture
Thick Mixture
Thin Mixture
Milk Mixture
Examples of Iodized Oil (absorbable) contrast media?
Pantopaque and Dionosil (used in bronchography)
Renders white images on the film because it is a positive contrast medium, having a high atomic number. A non absorbable contrast medium which can cause constipation when it stays for a long period inside the colon?
Barium Sulfate (BaSO4)
Qualities of good contrast media?
Clearly shows structures creating a different marked contrast with the density of surrounding tissue
Physiologically inert
Produce as little toxicity as possible in patient
Must be eliminated unchanged.
A full dose of contrast media is used for a study of general outline, shape, size, position, position as well as the anatomical contour and morphological deformities?
Filling Phase study
Enumerate the 6 most commonly used substances as contrast media?
Air/Gasses
Heavy Metallic Salts
Inorganic Iodides
Organic Iodides
Iodized Oil (non-absorbable)
Iodized Oil (absorbable)
What type of barium suspension should be prepared for a Barium Enema?
Thin mixture
Contrast agents that absorb x-rays appearing white on a radiograph?
Positive Contrast Agents
What type of barium suspension should be prepared for an Esophagram?
Paste mixture
Enumerate the forms of contrast media?
Solution (oil or water soluable)
TabletGranules or powders
Enumerate the types of contrast media?
Radiopaque or Positive Contrast Agents
Radiolucent or Negative Contrast Agents
What type of barium suspension should be prepared for a U.G.I.S. study?
Thick mixture
Enumerate the methods of administration of contrast?
Oral
Parenteral
Intubation
Rectal
Examples of Air/Gas contrast media?
Oxygen and Carbon Dioxide (used in pneumoencephalography)
