Intestinal Problems 10 - Bowel Screening Flashcards Preview

1st Year - Gastroenterology > Intestinal Problems 10 - Bowel Screening > Flashcards

Flashcards in Intestinal Problems 10 - Bowel Screening Deck (12):
1

What is population screening?

a test being offered to all individuals in an eligible group, usually defined by age, as part of an organised program.

2

What is opportunistic screening?

Opportunistic screening happens when someone asks their doctor or health professional for a check or test, or a check or test is offered by a doctor or health professional

3

Key screening programmes in the UK? (4)

Cervical cancerBreast cancerBowel cancerAAA

4

What is being taken into consideration when evaluating the reliability of a screening tool?

Repeatability of testRepeatability of the interpretation

5

What is considered when evaluating validity of a screening tool?

SensitivitySpecificityPositive predictive valueNegative predictive value

6

What is the sensitivity of a screening tool?

Proportion of those who have the disease who are correctly identified by a +ve test

7

What is the specificity of a screening tool?

Proportion of those who do not have the disease who are correctly identified by a -ve test

8

What is the positive predictive value of a screening tool?

Proportion of those who test positive who actually have the disease

9

What is the negative predictive value?

Proportion of those who test negative who actually do not have the disease

10

What is the uptake for a screening programme?

the number taking part in a voluntary programme

11

What is the yield for a screening programme?

number of previously undiagnosed cases picked up by a screening test or programme

12

What is the criteria for screening? (7)

Common/ serious conditionWell defined latent periodSuitable test available (must be sensitive and specific)Effective treatmentEarly detection improves prognosisHarm of screening smallCost justified