Abdominal Flashcards
views
-upright- flat and upright -> air and fluid
-supine
-left lateral decubitus
-prone- anyone who cant lie supine
upright
-fluids!!!
-chest pathology may mimic abdominal pain
-abdominal pathology can cause lung pathology -> fistulas
-something is so inflamed you can see it in the chest -> pancreatitis, sepsis
-pleural effusions related to abdomin
-backup of lymphatics from abdomen -> effusions or metastisis
acute abdominal series
-supine, prone view (if indicated), upright or left lateral decubitus, UPRIGHT CHEST X-RAY
-why do we want chest x-ray? -> free air under the diaphragm -> perforation -> OR
step latter sign
-fluid and air building up and extending intestines
-obstruction
-would not see supine
small bowel
-central
large bowel
periphery
center
lumbar spine rotation and pelvic rami alignment
normals
-gas patterns: small vs large bowel
-intraluminal vs extraluminal
-……..
GI gas patterns
-stomach
-small bowel- circular (flat is abnormal)
-location centrally
-no stool in SI
-anatomical detail- more distended than certain diameter -> indicates obstruction
-suspect (small bowel obstruction) SBO if dilated >3cm (large bowel >6cm)
-valvulae conniventes- span the bowel (can only really see if distended)
-large bowel-
-haustral markings- half way through the bowel
-
localized vs generalized gas
-localized- 1-2 loops
-large bowel
-general-
-all
-stomach
mechanical changes
-adhesions
-loop, twist, tangle
-scars
-
older person, pencil stool, distended stomach, decreased bowel movements
probably large bowel obstruction
nausea, NOT passing stool, epigastric pain
small bowel obstruction