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Positioning LGI
| Question | Answer |
|---|---|
| What is the patient prep for a small intestine exam | NPO- 8 hours |
| The first small intestine exam should be taken how long after the patient drinks the barium | 15 mins |
| What are the essential projections for a small intestine exam | PA and AP |
| Where is the IR centered for a delayed radiograph of the small intestine | Iliac crest |
| What exams require the use of time markers | Small intestine |
| Where is the IR centered for a radiographs of the small intestine tha are taken within 30mins of drinking the barium | 2inches above the iliac crest |
| "High Density" barium sulfate is use for what | Double contrast intestine exams |
| Wha is the patient prep of intestinal tract for the colon exam | Laxative, dietary restrictions, and cleansing enema |
| Methods of radiographically examining of the colon include | Single and double contrast |
| What methods are used to administer barium for a radiographic exam of the small intestines | Oral, reflux filling, and enterolysis |
| Who should inflate the retention balloon for a barium enema | Radiologist should inflate with fluro |
| What position should the patient be placed in for the insertion of the enema tip for a barium enema | Sims |
| How far above the anus is the enema bag laced during a barium enema | 18-24 inches |
| The majority of AP,PA, and oblique radiographs taken during a BE are done on 35x43 IRs. Where is the IR centered for the majority of these projections | Iliac crest |
| What is the respiration phase for all projections of the large intestine | Suspended expiration |
| Which projections are taken during a BE will demonstrate the rectosigmoid area | Lateral, PA, AP axial |
| What's the CR angulation for the PA Axial projection of the large intestine | 30 to 40 degrees caudad |
| What is the degree of body rotation for the PA oblique projection(RAO or LAO) of the large intestine | 35 to 45 degrees |
| At which plane is the CR positioned for the PA oblique projection (RAO or LAO) of the large intestine | A longitudinal plane 1-2 inches lateral to the midline of the body on the elevated side |
| Which projection of the colon best demonstrates the right colic flexure | PA oblique RAO and AP oblique LPO |
| What projection of the colon best demonstrates the ascending colon | PA oblique RAO |
| A PA oblique projection of the colon in a LAO position clearly demonstrates what | Descending colon and left colic flexure |
| What projection of the colon best demonstrates the left colic flexure | PA oblique LAO |
| At what level is the center of the IR positioned for a lateral projection of the rectosigmoid area | ASIS |
| Which plane is centered to the grid for a lateral projection of the large intestine | Midcoronal plane |
| What's the CR angulation for an AP Axial projection of the large intestine | 30-40 degrees cephalad |
| What is the degree of body rotation for an AP oblique projection of the large intestine | 35-45 degrees |
| What projection will clearly demonstrate the descending colon | PA oblique(LAO) and AP oblique(RPO) |
| Where is the IR centered for all decubitus projections of the large intestine | Iliac crest |
| What projection demonstrates the rectum and rectosigmoid area Ina true axial projection | Chassard- lapine projection |
| The large intestine is made up of a series of pouches called | Haustra |
| The pouch like portion of the large intestine is situated below the junction of the ileum and colon is | Cecum |
| The ascending portion of the colon joins the transverse colon at the | Right colic flexure |
| For which type of body habitus is the large intestine bunched together and and positioned very low abdomen | Asthenic |
| The general term used to describe the surgical procedure of forming an artificial opening to the intestine for the passageway of fecal matter | Enterostomy |
| What projection are used for radiographs made during defecography | Lateral |
| The vermiform appendix is a small, blind pouch which projects inferior from the | Cecum |
| How far is the enema tip inserted into the rectum for colon exam | 3.5-4 inches |
| The entire colon is best demonstrated in which projection | PA or AP |
| Which projection of the colon will best demonstrate the medial aspect of the ascending colon and lateral aspect of the descending colon when it is inflated with air | AP right lateral decubitus |
| Which projection of the colon best demonstrates the lateral aspect of the ascending colon and medial aspect of the descending colon when it is inflated by air | AP left lateral decubitus |
| What's the length of the average small intestine | 22 feet |
| What is the main function of the small bowel | Digestion of food and absorption of food |
| How many layers is the colon composed of | 4 |
| What is the length of the large intestine | 5 feet |
| The main function of the large intestine is | Reabsorption of fluid and elimination of waste |
| The opening between the small intestine and larger intestine is called | Ileocecal valve |
| The contraction waves by which the digestive tube moves its contents toward the return is called | Peristalsis |
| What are the folds of the stomach called | Rugae |
| Finger like projections are called | Villi |
| Where does the duodenum and the jejunum join | Duodenojejunum flexure |
| Largest gland in the body | Liver |
| What are the two regions of the abdomen that are almost entirely occupied by the liver | Right hypochondria and epigastric regions |
| Where is the spleen located l | Left upper quadrant |
| During an ERCP an endoscope is passed into the duodenum under fluoroscopic control. A spot radiographs are usually taken of the | Pancreatic duct and common bile duct |
| During an operative cholangiogram the surgeon ingests contrast medium directly in to the biliary system. Which projections are typically taken with this procedure | AP and AP oblique RPO |
| What are the four parts to the large intestine? | 1)Cecum 2)Colon 3)Rectum 4)Anal Canal |
| Where and what is the vermiform appendix attached to? | Posteromedial Side of the Cecum |
| What methods are used for radiographic examinations of the colon? | Single or Double Contrast |
| What Projection and position will best demonstrate the posterior portion of the colon | Lateral projection in Left or Right Ventral Decubitus position |
| What are the methods of performing a double contrast barium enema? | Single stage, & two stage by Welin |
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atesta0824
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