Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
list the risk factors for crc
|
- older age
- diet - genetic prediposition (FAP, HNPCC or Lynch syndrome) - inflamm bowel disease (ulcerative colitis) - polyps |
|
|
what type of diet increases your risk for crc?
|
high fat, low fiber diet
|
|
|
which location within the colon has the highest incidence of crc?
|
rectum - 29%
|
|
|
which part of the colon has the lowest incidence of crc?
|
descending colon - 6%
|
|
|
T/F: nurse's health study demonstrated a diet of high fiber and low fat helps prevent colon cancer
|
FALSE - nurse's health study did not find any benefit
|
|
|
when is a colectomy recommended?
|
- FAP + polyps
- HNPCC |
|
|
does screening prevent colon cancer?
|
NO - detects cancer (may decrease mortality since you detect cancer earlier)
|
|
|
what's the difference b/w colonoscopy and sigmoidoscopy?
|
- colonoscopy looks at the entire bowel
- sigmoidoscopy only looks b/w the rectum and descending colon |
|
|
how do you avoid false positives in FOBT?
|
- no red meat and vegs with peroxidase activity for 3 days
- avoid iron products 3 days before test - avoids nsaids 7 days before test |
|
|
how do you avoid false neg in FOBT?
|
- avoid vit c 3 days prior to test
- avoid testing dehydrated samples |
|
|
what's the limitation to the double contrast barium enema?
|
inferior to colonoscopy for detecting polys and crc
|
|
|
if a patient can't tolerate the general anesthesia that's needed for a colonoscopy, what's their tx option?
|
double contrast barium enema
|
|
|
what's the gold standard for screening crc?
|
colonoscopy every 10 years
|
|
|
clinical presentation of crc?
|
- asymptomatic
- changes in poop habits ("pencil poop") - bloody stool - anorexia - abd pain - weakness - weight loss - 20% patients have metastatic disease |
|
|
how is colon cancer staged?
|
takes into account the size of tumor ("T") and nodes ("N")
|
