Screening test

Debate and discussion of any biological questions not pertaining to a particular topic.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
roniadam
Death Adder
Death Adder
Posts: 81
Joined: Wed Apr 25, 2007 3:43 pm

Screening test

Post by roniadam » Sat Aug 11, 2007 2:45 pm

1- Explain why should screening tests not be used for rare detect diseases or conditions?
2- Should a test for a disease with high mortality rate but which can be cured if diagnosed early have a high sensitivity or high specificity ? Why ?

User avatar
kotoreru
Coral
Coral
Posts: 400
Joined: Thu Apr 12, 2007 9:25 pm
Location: London

Post by kotoreru » Sat Aug 11, 2007 8:09 pm

The answers to both of these questions are really very simple, almost bordering on the obvious.

Think about them, and if you're really stuck then ask again.
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

roniadam
Death Adder
Death Adder
Posts: 81
Joined: Wed Apr 25, 2007 3:43 pm

Post by roniadam » Sun Aug 12, 2007 4:50 am

i know it is costly but i need a scientific explanation... that is why i am asking.

User avatar
kotoreru
Coral
Coral
Posts: 400
Joined: Thu Apr 12, 2007 9:25 pm
Location: London

Post by kotoreru » Sun Aug 12, 2007 11:29 am

As far as I can see, there is no real 'scientific' explanation for this. Screening tests don't aggravate diseases, and that's not what the question is asking anyway.

It really does just come down to cost, time i.e. the economics of medicine, and in the second question: liability and reliability.
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

User avatar
AstusAleator
King Cobra
King Cobra
Posts: 1039
Joined: Tue Jan 24, 2006 8:51 pm
Location: Oregon, USA

Post by AstusAleator » Thu Aug 16, 2007 10:02 pm

1 - As kot said, you'll end up wasting a lot of time and money.

2 - You want sensitivity for the earliest warning possible. Then you can follow up with specificity.
What did the parasitic Candiru fish say when it finally found a host? - - "Urethra!!"

Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 3 guests