w6 safe blood collection

Question 1

cause of bacteremia

Answer 1

bacteria multiply in blood stream faster than they can be eliminate

• abscesses
• dental extraction
• surgery
• brucellosis
• typhoid

Question 2

when are blood cultures ordered

Answer 2

FOU fever of unknown origin

PUO pyrexia of unknown origin

Question 3

what do blood cultures determine

Answer 3

• presence and extent of infection
• identity of organism
• antibiotic to use

Question 4

when are blood cultures ordered

Answer 4

• before anticipated fever spike
• after spike
• before antibiotics
• from more than one site

Question 5

collection set

Answer 5

blood cultures collected as sets 
one aerobic vile 
one anaerobic vile 
-all bacteria detected 
ordred 2 -3 times at intervals increases change of isolating organisms and ruling out contaminations

Question 6

consecutive collection technique

Answer 6

collect anaerobic and aerobic from one arm then immediately collect both from the other from same site and you indicate on bottles which arm R or L – acute symptoms need antibiotics immediately

Question 7

time interval technique

Answer 7

s=collect at a second site at certain time 20-30 mins after – limited amount of blood drawn is a lot

Question 8

collection notes (8)

Answer 8

• inspect bottles; contamination cloudy ness cracks bulging etc
• performed at bedside-processed within 2 hours
• room temp time of collection- incubated 27
• mark vial before collection so you know volume.-skin scrupulously cleaned and disinfected.
• repalpating not recommended
• note insufficient specimen on req-split between two vials inoculate aerobic bacteria only or some say inoculate only one vial so aerobic
• nsq not sufficient quantity note on req
• when preparing follow same patient id and vein assessment

Question 9

extra steps to take blood

Answer 9

-clean with alcohol then clean with povidone iodine pad or chlorhexidine gluconate swab for 30 seconds using friction scrub in 8-10 cm area
-use butterfly needle
-mark fill line on bottle -then remove plastic cap from vials and cleanse stoppers with fresh alcohol pad and allow to air dry
engage vial in holder and fill-*keep tube in downward position to avoid back flow
-order of draw
-invert
** document which arm blood came out of

Question 10

order of draw

Answer 10

aerobic anaerobic then other blood tubes if required

Question 11

blood syringe collection

Answer 11

sterile 10 or 20ml syringe used when veins fragile. transfer quickly to to vial there is no anticoagulant in syringe