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Contrast Media
Intro
| Question | Answer |
|---|---|
| Osmality is a measure of | the total number of particles in soloution |
| Oil-based iodine contrast mediea are made from | fatty acids |
| Contrast media are: | diagnostic agents |
| Elements with a high atomic number | absorb x-ray fater than elements with low atomic number |
| Radiolucent x-ray are | positve agents |
| Radopague contrast media | are positive contrast contrast agents , appear light on radiographs , and are composed of elements with a high atomic number |
| Radolucent Contrast media | appear dark on radiographs |
| Example of positive contrast media | barrium and iodine |
| An allergic reaction ranges form mild to severe, A reatction after an injection of contrast media with hypotension and braycardia would be which of the following | mild, and severe |
| Extravagation | leakage on contrast media outside the vessel int the surrounding soft tissue |
| Immediate treatment for contrast extravagation | stop the infussion |
| In the even of contrast extravigation if the amount of contrast media extavasated is greater than_____ mls a plastic surgeon must be notified | 30 |
| 5 patient rights of drug Administration | Right Amount Right patient right route right drug right time |
| Medication to treat adverse reaction form contrast media | Benedryl and Epinephorine |
| Routes of administration for contrast medeia | IV , Enema (rectal) , orally |
| Normal creatine level | 1.0 |
| Recommended time before resuming glucophage folling an iodine contrast media procedure | 48 |
| Examples of negative contrast media | air , soda water, gas-producing crystals |
| Air enbolus can for as a complication | negative contrast medial administration |
| Barrium sulfate is soluable in | Water |
| Tendancy for barrium sulfate to clup and come out of suspension is | flocculation |
| Barium sulfate coats | gastrointestinal lining |
| Barium sulfate is conraindicated if | patien is suspectd of having a gastrointestinal tract perforation |
| Barium can dry in stomach and cause | obstruction |
| Oil based iodine contrast media are used currently for | darcyocystography, bronchography, lyphography |
| ioni contrast media dissociate into | two molecular particle in blood plasma |
| Opacifying elemen in benzoic acid ring | Three atoms of iodine |
| High Osmality of contrast is related to | adverse reactions |
| Most iomic, iodinated conrast media are | monomers |
| Nonionic contrast media are associated with | low-osmality |
| Myelogam is most commonly used with | non-ionic contrast media |
| Injection of ionic contrast media may lead to | arterial expansion |
| which contrast media is used for Upper GI | Barrium |
| Negative and positive contrast media are used | together in certain exams |
| Main disadvantage to using oil-based contrast | insoluable Body cant break down |
| With nursing mothers the recommeded time to wait after gadolinium-based contrast injection to resume nursing | 24 hours |
| Condition of increased risk for contrast | Multiple myeloma, sickel cell anemia, anuria , diabetes (esp. diabetes mellitis |
| two closest crash carts in DC if life threatning reaction were to occur | IR and CT |
| Where is the crash cart in Main | Radiology room 4 |
| Positive contrast agents | increase attenuation of x-ray beam and produce areas of decrease density on image |
| Negative contrast agents | decrease attenuation of x-ray beam and produce increase in densit on image |
| Radolucent is a ______ contrast agent | negative |
| Rodiopaque is a _____ contrast agent | positive |
| Barium sulfate and air are used together to visualize | lumen of the colon |
| Barium has an atomic number of | 56 and is radiopaque |
| Hypervolemia | serious, sometimes fatal condition that can result , when increase water absortion by the colon in results of excess fluid entering the circulatory system to reduce risk 2 teaspoons of table salt with liter of water in enema prep |
| Exravagation | Leakage through a duct or vessel into abdominal cavity |
| Iodine has an atomic number of | 53 opaque, positively charged |
| cation | salt consisting of sodium or meglumine. increase solubility of contrast media, |
| the cantion combines negatively charged | components called anion |
| The cantion and anion are side chains that attach to the parent | benzoic acid ring |
| Viscosity | friction |
| Ioxaglate | ionic molecule composed of two conneted benzene hexagons |
| Iodixanol | made to be isomola |
Created by:
hoop1726