Colon Cancer Quiz
Questions: 16 · 10 minutes
1. A friend claims that lifestyle has no relationship to colon cancer because genetics determine everything. Which response is most accurate?
Lifestyle matters only after colon cancer has been diagnosed
Regular exercise completely cancels inherited risk
Lifestyle factors can be associated with risk, but no single habit determines whether one person will develop cancer
One meal high in processed meat directly creates a cancerous polyp
2. During a colonoscopy, a clinician removes a small adenomatous polyp. Why can this be preventive?
Removing any polyp confirms that cancer was already present
Polyp removal makes all future screening unnecessary
Every adenomatous polyp is caused by an inherited syndrome
Some adenomatous polyps can become cancerous over time if left in place
3. A person's parent had colon cancer, but the person does not know the age at diagnosis. What is the most useful next step when discussing screening?
Assume family history does not matter without genetic test results
Wait for symptoms before mentioning the family history
Follow exactly the same screening plan as everyone else without discussing individual factors
Share the relationship and diagnosis details with a clinician, including the relative's age at diagnosis if it can be learned
4. A scan identifies a suspicious mass in the colon. What usually provides confirmation that it is cancer?
The size of the mass on the scan alone
A single routine blood count
Examination of a tissue sample by a pathologist
Symptoms combined with family history, without tissue testing
5. A person has no digestive symptoms and feels healthy. What is the main purpose of offering an appropriate colon cancer screening test?
To identify specific food intolerances
To prove that colon cancer can never develop later
To look for possible cancer or precancerous changes before symptoms appear
To diagnose every possible cause of future abdominal discomfort
6. Which statement about symptoms in the early stages of colon cancer is accurate?
Early colon cancer always causes a bowel obstruction
Colon cancer can be present before noticeable symptoms develop
Symptoms begin only after cancer has spread to another organ
Normal bowel habits completely exclude colon cancer
7. How does a screening test generally differ from a diagnostic evaluation for colon cancer?
Screening is performed only after cancer cells are found in a biopsy
Diagnostic evaluation is intended only for people without symptoms
The terms are interchangeable and describe the same stage of care
Screening looks for disease in people without symptoms, while diagnostic evaluation investigates symptoms or an abnormal screening result
8. Where does colon cancer begin?
In cells within the colon, which is part of the large intestine
In the final section of the small intestine
Only in the rectum, regardless of its point of origin
In the appendix before spreading into the colon
9. A person notices blood after a bowel movement and assumes it must be hemorrhoids. What is the best interpretation?
Visible blood always comes from hemorrhoids in younger adults
A home stool test can identify the exact source of visible bleeding
Hemorrhoids are one possibility, but rectal bleeding can have other causes and should be medically assessed
Bleeding matters only when it is accompanied by severe pain
10. Repeated blood tests show iron-deficiency anemia in an adult who has no obvious external bleeding. Why might a clinician consider evaluating the colon?
The colon is the main organ responsible for absorbing dietary iron
Slow, hidden bleeding from the digestive tract can contribute to iron deficiency
Colon cancer always causes unusually high iron levels first
Iron-deficiency anemia rules out a digestive cause
11. Which medical history is an established factor that can increase colon cancer risk and should be discussed with a clinician?
Long-standing inflammatory bowel disease affecting the colon
Lactose intolerance without intestinal inflammation
Occasional indigestion after a large meal
A short episode of viral gastroenteritis
12. Why is careful bowel preparation important before a colonoscopy?
It prevents every possible complication during the procedure
The preparation permanently shrinks existing polyps
It determines whether a tumor is inherited
A clean colon helps the clinician see the lining and identify abnormalities
13. A stool-based screening test returns an abnormal or positive result. What commonly happens next?
A colonoscopy is recommended to investigate the result
Colon cancer is considered confirmed without further testing
The same result is treated as proof of an inherited cancer syndrome
No follow-up is needed unless pain develops
14. What does a fecal immunochemical test, commonly called FIT, primarily look for?
Small amounts of human blood in stool
Polyps viewed directly through a camera
Levels of digestive enzymes produced by the pancreas
Inherited gene variants in a blood sample
15. In colon cancer care, what does staging describe?
How abnormal the cancer cells look under a microscope
The extent of the cancer, including whether it has spread beyond its original site
The exact length of time the cancer has existed
Whether the cancer was definitely inherited
16. Someone develops severe abdominal pain, repeated vomiting, swelling, and an inability to pass stool or gas. What is the most appropriate response?
Wait several weeks to see whether the symptoms resolve without care
Seek urgent medical evaluation because these can be signs of an obstruction or another emergency
Start an iron supplement and continue normal activities
Mention the symptoms only at the next routine screening visit