Unit 5 Diagnosis of infectious Diseases Flashcards
what are 3 reasons that prompt and accurate identificaiton of infectious agents by the lab is needed
provide patient with appropriate and effective therapy in a timely fashion
avoid delay in providing therapy and to avoid providing ineffective/harmful therapy
to help reduce risk of further spread of the infection (and hence reduce morbidity and mortality)
what are the three phases for laboratory diagnosis of infectious diseases
pre-analytic phase
analytic phase
post-analytic phase
what happens in the pre-analytic phase of laboratory diagnosis of infectious diseases
order placed
order transfered to lab
identifying information entered
specimen obtained
what occurs in the analytic phase of laboratory diagnosis of infectious disease
specimen analyzed
what happens in the post-analytic phase of laboratory diagnosis of infectious disease
report generated
result conveyed to clinician
data interpreted
clinical response to result
which phase are the most mistakes made
pre-analytical phase
what aer the five major steps of how patient specimens are processed for conventional testing
inoculation incubation isolation inspection identification
who out of the health care team is the first to be aware of S&S of infection in a patient
nurse
what happens in step 1 of proper specimen collection and handling
provider places laboratory order in the EHR
order is electronically transmitted to the LIS
what happens in step 2 of proper specimen collection and handling
nurses open the worklist in the EHR to view pending collections
what happens in step 3 of proper specimen collection and handling
when nurse is ready to collect the specimens he/she clicks the “print label” task in the EHR. The rpinted label contains patient identifiers and collecion information
nurse brings collection materials into the patients room
what happens in stage 4 of proper specimen collection
nurse scans patients wristand against he specimen labels to ensure a match. The EHR records successful positive patient identification or alerst the provider of a mistmatch
specimens are collected and sent to the laboratory
what is collected from the patient in serology
paired sera
what do analysts look for in serology
a significant rise of at least 4 fold increase in antibody titre
true or false it is important to collect a specimen before the patient receives antimicrobials
true
