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Flashcards in use of clinical labatory Deck (22):
1

Lab Work Flow

Pre-analytical process
analytical process
post-analytical process

2

Preanalytical

Ordering, collection, transport

3

Analytical

Processing and testing
*Quality control

4

Postanalytical

Creating and sending reports

5

when are most lab errors/

pre and post analytical

6

which phase is tighty contorlled within the lab

analytical

7

uneccesary lab test

dont know
cuz patient ask
protect self from lawsuit

8

valid reason for ordering lab test

diagnosis
monitring disease
determine prognosis
screening for disease

9

invalid reasoning for odering lab test

pressure, lawyers, preparing for rounds, personal profit

10

lab test for MI

tropinin
CK

11

why use serum enzymes

for MI test

12

CK present in

heart, brian , muscles
---can elad to false positive tests

13

sensitivity of CK is

98%

14

what is a normal sd

results within 2 SD
-means 5% will be abnormal

15

variables influencing normal

physiologic
analytical

16

impact of multuple test

one will be outside of the reference range

17

panel testing

ability to order multiple test together

18

crticial values

lab test which are life-threatening (panic values)

19

real world, bell curve doesnt overlap

100% sensitivity
90% specifici
some false +
no false -

20

greater sensiviiy means

less specificity

21

greater specificity means

less sensitivity

22

should we screen for Mi with serum Ck

no, poor predictive value