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Contrast media that absorbs xray

Radiopaque

CM that partially absorbs xray

RADIOLUCENT

CM CHARACTERISTICS THAT IS WHITE IN APPEARANCE

Radiopaque

Cm that is black in appearance

Radiolucent

Positive cm

Radiopaque

Negative cm

Radiolucent

Barium sulfate characteristics

1. Physiologically inert


2. Relatively cheap


3. High atomic number


4. Non absorbable

PRHN

Characteristics of barium sulfate which cannot be dissolve in water

Colloidal suspension

Iodinated cm classification

1. Oil based


2. Water based ionic


3. Water based non ionic

Iodinated cm classification used for sialography, lymphan giography, bronchography

Oil based

Iodinated cm that has adverse reactions due to high osmalarity concentration

Water soluble ionic

Iodinated cm that is safe but very expensive

Water soluble non ionic

4 routes of administration of cm

1. Oral


2. Parenteral


3. Rectal


4. Intubation

6 parental routes of administration of cm

1. Subcutaneous


2. Intradermal


3. Intramuscular


4. Intravenous


5. Intrathecal


6. Topical

Parenteral administration of cm to the skin

Topical

Parenteral administration of cm in the skin

Intradermal

Parenteral administration of cm deep skin

Subcutaneous

Parenteral administration of cm to the muscles

Intramuscular

Parenteral administration of cm to the veins

Intravenous

Parenteral administration of cm to the spinal cord. Most sterile

Intrathecal

4 physiological properties of cm

1. Viscosity


2. Toxicity


3. Osmalarity


4. Miscibility/hydrofelicity

Physiological properties that describes resistance to flow

Viscosity

Physiological properties that describes degree of chemical substance that can damage organism

Toxicity

Physiological properties that describes the concentration of a solution expressed as the number of solute particles per liter

Osmalarity

Physiological properties that describes ability to mix with water

Miscibility / hydrofelicity

Type of medication that serves as vasopressor stimules sympathetic nervous system, increase bp relaxes smooth muscles of respiratory system

Adrenergic

Examples of adrenergic medication

Epinephrine, adrenaline

2

Medication that relieves pain

Analgesic

Sample of analgesic

Aspirin, acetaminophen/tylenol, codeine, mependine/demerol

4

Medication type that relieves cardiac arrhythmia

Antiarrhytmic

Example of antiarrhyrmic medicine

Quinidine sulfate, lidocaine / xylocaine

2

Medication that depresses parasympathetic system

Anticholinergic

Example of anticholinergic

Atrppine, scopolamine, belladonna

3

Medication that inhibits blood clotting

Antocoagulant

Example of anticougulant

Heparin, warfarin

2

Medication that relieves allergic symptoms

Antihistamine

Examples of antihistamines

Diphenhydramine hydrochloride (benadryl)

Medication that reduces fever

Antipyretic

Example of antipyretic medication

Aspirin, acetaminophen

2

Medication that increases cardiac output

Cardiac stimulant

Examples of cardiac stimulant

Digitalis

Medication that serves as laxative, relieves constipation, prepares colon for diagnostic test

Catartic

Examples of cathartic

Bisacodyl / dulcolax, castor oil

Medication that stimulates urine

Diuretic

Examples of diuretics

Furosemide / lasix

Medication that stimulates vomiting

Emetic

Example of emetic

Ipecac

Medication that lowers blood sugar

Hypoglycemic

Examples of hypoglycemic medication

Insulin, chlorpropamide / diabinese

Medication which serves as sedative analgesic and can potentially be addictive

Narcotic

Examples of narcotic medication

Morphine, codeine, meperidine/demerol

Medication which relaxes and dilayes blood vessels by decreasing BP

Vasodilator

Examples of vasodilator

Nitroglycerine, verapamil

Fluoroscopy tubes operate at what mA?

0.5-5.0; ave of 1-3 mA

Flouroscopoc screens are made of what materials?

Zinc Cadmium Sulfide / patterson b2 screen , cesium iodide

Distance between focal spot and table top for fluoroscopy

12" minimum distance

Max table top exposure

10R/min

Sequence for cm examination

1. IVU or IVP


2. GB


3. BE


4. UGIS

What cm procedures can be done together

1. IVP and GB


2. IVP AND BE


3. GB AND UGIS

Preparation for CM examination for GB

Iodinated cm in pills are talen evening before the scheduled exam and only water is allowed in the morning of the exam

Preparation for CM examination for UGIS

npo after midnight

Preparation for CM examination for BE

Cathartics and cleansing enema

Preparation for CM examination for IVU pr IVP

Cleansed of gas and fecal material, NPO after midnight, empty bladder before scout

After care for barium sulfate examination

1. Take milk of magnesia for evacuation of the feces.


2. Increase fiber intake


3. Drink plenty of water


4. No bowel movement after 25hrs consult physician

Contraindication of barium sulfate examination

R/O visceral perfocation

Peritoneal cavity + barium sulfate

Peritonitis

Insulin intake + npo

Hypoglycemia

How many hours should metformin be discontinued after IVU?

4hrs

IVU + metformin

Acite kidney failure, acute acidosis

3 breathing techniques

Valsalva


Modified valsalva


Mueller

Breathing technique that forces air against close glottis

Valsalva

Breathing technique that tries to blows through the nose and can test elasticity of laryngeal pharynx

Modified valsalva maneuver

Breathing technique that exhales and inhales ahainst closed glottis

Mueller technique

3 types of cm

Single contrast, double, and biphasic

CM examination of the abdomen - 3 position

1. AP SUPINE


2. AP ERECT


3. LAT DECUB

CM examination of the abdomen - in ap supine, where is the IR centered?

Iliac crest

CM examination of the abdomen - in ap supine what is the central ray

Perpendicular to the midline at the level of the iliac crest

CM examination of the abdomen - in ap erect the ir is centered where

2" above iliac crest

CM examination of the abdomen, in ap supine what structures are shown?

Scout, size and shape of kidneys, liver and spleen, psoas muscles, and calcification of masses

CM examination of the abdomen, what position demonstrates air fluid levels both hemidiaphragms are included

Ap erect

CM examination of the abdomen. What position should be used if the patient cannot assume erect position, but the air fluid levels should be visualized?

Lat decub

Acute abdominal series

1. AP recumbent


2. AP erect


3. PA chest


*LLD substitute for ap erect

Esophagus is how many inches long

9"

At what level of the vertebra can we find the esophagus

C6 - T11

The esophagus ends at?

Esophageal orifice of the stomach

Four normal points of narrowness in the esophagus

1. Carotid cartilage


2. Level of aortic knob


3. Opposite of the crossing of the left bronchus


4. Esophageal hiatus of the diaphragm

CLOE

Other names of esophagography

Barium swallow, hypaque swallow, esophagogram

Indications for esophagography

1. Retro sternal discomfort or chest pain of suspected no cardiac origin


2. Symptomatic or suspected gastro esophageal reflux


3. Dysphagia or difficulty in swallowing


4. Odynophagia or painful swallowing


5. Globus or lump in the throat


6. Evaluation of masses, vascular rings, strictures or aberrant anatomy

Contraindications of esophagography

Undergone recent esophageal or gastric surgery or recent trauma

4 positions of esophagography

1. AP


2. Lat


3. RAO


4. LAO