Introduction to Diagnostics PDF

assessments: 2 exams, 2 assignments (ekg, chest x-ray) list why you would order diagnostic studies contrast needs to go through the kidney so you need to test to see if more definitive test are sometimes the...

assessments: 2 exams, 2 assignments (ekg, chest x-ray) list why you would order diagnostic studies contrast needs to go through the kidney so you need to test to see if more definitive test are sometimes the patients kidneys are strong needed to rule out a false positive enough to handle the contrast before the test is done make sure the EKG is okay before administering a med monitor the LFTs using statin, ex. monitor patient status, preventative care they have a chance of elevating liver enzymes, monitor to make sure the levels are not problematic  first question: why do we want to do the test, there needs to be a reason for the test to be done (rationale first) ◦ insurance companies want a reason why they are covering the test (they will deny coverage if there is no rationale) ◦ when you order multiple test the chances you find something abnormal is higher (panel testing) risks and benefits ◦ every test we do has an inherit risk to it, how harmful will it be if you miss the diagnosis (think clinically in list for differential diagnosis) how certain are we about the diagnosis, do we need confirmation? ◦ if your confident about a diagnosis you don't need to order a test you can treat it empirically will test change the treatment plan ◦ weather they have the test or not they will be treated the same way (getting an x-ray to confirm a broken rib wont change the treatment) prevalence ◦ think the patient has the flu when it's not flu season vs when it is flu season, you would be less likely to do the flu test during flu season clinical expertise ◦ less clinical expertise means ordering more test, as you gain clinical experience you become more comfortable in your expertise ◦ you context in which you work, this will dictate the test you order, in preventative medicine you will order more tests  how good is the test? what is normal and what is not am i going to do the test or not KNOW in the middle of test and treatment threshold is where you do the testing what thesemeanto andtheneed for ordering think appetpatient  low on the spectrum high on the spectrum treat the 21 year old without testing treat the 63 year old with testing yes  once you get the test results you have to interpret it make an analysis on the results of the test a lot of time testing is bundled into panels my limitations of rapid tests ◦ great test for positives ◦ have to follow up for negatives ◦ high specificity, low sensitivity