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Contrast Media
RAD 109
73
Other
Not Applicable
03/27/2011

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Cards

Term
chronological
Definition
comments should be made in this order
Term
NKA
Definition
No Known Allergies
Term
Informed consent, Allergies, Material used, Amt, Time of administration, Path of administration, Injection site, Name of person administering, Reaction, Time of Reaction, Symptoms, Treatment of reaction, Physician, Time and condition on leaving dept
Definition
Included in the documentation sheet
Term
Negative Contrast Agent
Definition
Radiolucent/Dark. Low atomic number. Air. X-rays pass easily
Term
Positive Contrast Agent
Definition
Radiopaque. Light on radiographs. High atomic number.  Absorbs 3x more x-rays than bone. Ex: iodine, barium sulfate.
Term
Barium Sulfate
Definition
Insoluble in water. Inert compound. Used in alimentary canal. Heavy metal with atomic number 56. Administered orally or rectally
Term
Iodinated Compounds
Definition
Atomic number 53. Concentration affects viscosity. Oil-based/Water-soluble
Term
Oil-Based Iodinated Contrast Media
Definition
Fatty-acid based. Insoluble in water. slowly absorbed. used in studies of lymphatic system. Nonionic
Term
Water-soluble Iodinated Contrast Media
Definition
used in studies of urinary, binary, and CV systems. used in studies of digestive system when barium contraindicated. administered orally, rectally, IV, or directly. Ionic
Term
Oral
Definition
Esophagus, Stomach, Small Intestine,  and Gallbladder
Term
Rectal
Definition
Large Intestine Exams
Term
Intravenous
Definition
Excretory Urography (IVU), IV cholangiography, CT, MRI
Term
Direct
Definition
Cystography. Myelography. Arthography. Hysterosalpingography.  Sialography. Percutaneous Transhepatic Cholangiography (PTC)
Term
Non-ionic.  ionic
Definition
____ Low osmolar agents are 5-10 times safer than the older high osmolar ____ agents
Term
5 minutes
Definition
a patient should not be left alone or unsupervised in the first ___ after injection
Term
15 minutes
Definition
how long should the patient remain on the premises after the injection
Term
previous contrast reaction. asthma. renal problems. diabetes mellitus. metformin therapy.
Definition
Essential information that should be sought before contrast injection includes history of:
Term
Metformin
Definition
accumulation of this may result in the development of the serious complication lactic acidosis
Term
Intravascular Contrast
Definition
should not be administered if the patient is hyperthyroid. MRI is preferred
Term
Radiology errors
Definition
account for 61% of all hospital errors
Term
Room number or name above bed
Definition
What should patients never be identified by?
Term
Barium Sulfate
Definition
a suspension fluid that is an inert compound. does not react chemically with the body. absorbs water while in the body.
Term
iodinated contrast
Definition
puts patietns at an increased risk for dehydration
Term
25 mm Hg
Definition
maximum pressure of suction should never exceed
Term
Osotomy
Definition
artificial opening into the GI tract that is created surgically to eliminate body waste.
Term
Stoma
Definition
opening created on the abdomen during the ostomy surgery
Term
Side effect
Definition
Occurance that happens in many people when they are given a specific drug.
Term
Mild Reactions
Definition
nausea,  vomiting, anxiety, lightheadedness, syncope, headache, itching, and sneezing.
Term
Moderate Reactions
Definition
Allergic Reactions. Hypertension or hypotension. Dyspnea, hives, tachycardia. mild laryngeal edema and wheezing.
Term
Severe Reactions
Definition
convulsions, arrhythmias, cardiopulmonary arrest,  unresponsiveness, servere hypotension. vasovagal reactions
Term
Extravasation
Definition
occurs when injected contrast leaks into the tissues surrounding the vein or when contrast is accidentally injected directly into tissues
Term
2
Definition
Technologists should not attempt injection more than how many times?
Term
Positive Contrast Agents
Definition
Powder-like. Colloidal Suspension. Must be stirred well. Contraindications: perforated hollow viscus, presurgical procedure
Term
Subject Contrast
Definition
The degree of differential absorption resulting from the differing absorption characteristics of the tissues in the body
Term
Contrast Media
Definition
Diagnostic agents that are introduced into body orifices or injected into the vascular system, to enhance subject contrast.
Term
Chest
Definition
Mmost common exam performed using a negative contrast agent is the routine ____
Term
Iodine, Barium
Definition
Most commonly used positive contrast agents
Term
Iodine
Definition

Atomic Number: 53

Atomic Mass: 126.9

Term
Barium
Definition

Atomic Number: 56

Atomic Mass: 137.33

A metallic salt

Term
Barium
Definition
Is not absorbed by the body. Is administered in the form of an inert salt
Term
esophagrams
Definition
thick barium is used for __
Term
Barium
Definition
used for GI series
Term
Ionic Iodine Contrast
Definition
referred to as high-osmolality
Term
Aqueous
Definition
a solution prepared with water
Term
Osmolality
Definition
measurement of the number of particles that can crowd out water molecules in a measured mass of water
Term
Osmoles per Kilogram of water
Definition
Osmotic pressure of a solution
Term
Osmosis
Definition
movement of water from an area of high concentration to an area of low concentration through a semi permeable membrane
Term
Viscosity
Definition
the ability or inability of a fluid solution to flow easily
Term
Toxicity
Definition
risk of adverse reactions
Term
Iodine concentration
Definition
determines the degree of attenuation
Term
Iodinated Contrast Agents
Definition
used for IVU, myelography
Term
Non-ionic
Definition
does not dissolve into charged particles
Term
Side effects
Definition
expected outcome to injected contrast media
Term
Reaction
Definition
unexpected outcome to injected contrast media
Term
.6 - 1.5mg/dl
Definition
Normal Creatinine level
Term
8 - 25 mg/100ml
Definition
Normal BUN levels
Term
Vasomotor Effect
Definition
Non-allergic reaction often based on fear or anxiety
Term
Vasomotor
Definition
Anxiety, lightheadedness, nausea, syncope, mild urticaria
Term
Anaphylactic Reaction
Definition
true allergic reaction
Term
Vasovagal Reaction
Definition
Contrast agent stimulates vagus nerve
Term
Acute Renal Failure
Definition
kidneys shut down
Term
<80 mm Hg
Definition
Hypotension
Term
<50 bpm
Definition
Bradycardia
Term
Vasovagal Reaction
Definition
Hypotension, bradycardia, no detectable pulse
Term
Anaphylactic Reaction
Definition
Moderate to severe urticaria, Laryngospasm, Bronchospasm, Angioedema, Hypotension, Tachycardia
Term
>100 bpm
Definition
Tachycardia
Term
Multiple Myeloma
Definition
Abnormal protein binds with contrast and can cause renal failure
Term
Sickle Cell Anemia
Definition
RBC's get trapped causing pain and blood clots
Term
Pheochromocytoma
Definition
kidney tumor
Term
Oral
Definition
Esophagus, stomach, small intestine, GB
Term
Rectal
Definition
Large intestine
Term
Intravenous
Definition
IVU/IVP, IV Cholangiogram, Brain, Thorax, Venography, Heart
Term
Direct
Definition
Cystography, Myelography, Arthrography, Sialography, Hysterosalpinography, Percutaneus Transheptic Cholangiography
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