Blue Packet Flashcards
what should a phlebotomist do when a new lot number or kit is opened
perform external liquid controls for quality control on CLIA waived point of care test
what is the total blood volume of a 3.3 kg infant
240-330 mL
when veins are inaccessible due to IV, scarring, or burns, what should be collected
capillary specimen
what could happen if mislabeling of a blood bank specimen is undetected
fatal transfusion reaction
what are the basic steps for venipuncture
assess site, cleanse, insert
what temperature should a CBC be stored
2-10 degrees C/35-50 degrees F
how long can a CBC be stored if it is refrigerated
12 hours
what happens to the cells in blood cells if it is not centrifuges
cells metabolize into serum
what should be marked on the blood tube in front of the pt
initial and date/time mark
what is the preferred vein when getting a routine blood sample
median cubital
what bottles should be brought if a nurse asks for supplies for blood cultures
aerobic and anaerobic
a pt must give what if they are donating blood
give complete medical history
define FERRITIN
protein that binds to uron
purpose of Ferritin blood test
- find cause of anemia
- see if inflammation is present
- see if too much iron present
- check to see if iron treatment working
what is the first thing phlebotomist should do if a pt becomes unresponsive
check for breathing
when doing an evacuted tube system (ETS) venipuncture, how should the needle be positioned
needle in same direction as vein at 30 degree angle w/bevel up
what are areas a phlebotmost should avoid drawing from on a diabetic pt
leg or foot
why should a phlebotomist avoid drawing from leg/foot of diabetic pt
more susceptible for infection
arterial blood gasses must be place in an ice bath within ___ min after collection
30
what does arterial blood gas (ABG) test measure
acidity, oxygen, and CO2 in blood
purpose of ABG test
check how well lungs move oxygen and CO2
cryoglobulins test specimens should be kept at or close to what temperature
37 degrees C/98.6 degrees F
define cryoglobulins
abnormal proteins
cryoglobulins come in how many types
3 main types
what is the cause of 90% of cases of cryoglobulins
hepatitis C
what should be done in cases of difficult draws or when PTT/other coagulation tests are ordered
use syringe draw transferred into a light blue vacutainer
what is used to clean the urinary meatus
benzalkonium chloride
define AUTOLOGOUS DONATION
donor pre-deposits own blood for own use later
why is the order of draw for capillary collection different then venipuncture
increased rate of coagulation
t/f: order of draw for capillary collection is different than venipuncture
true
what should be done to collect a blood specimen from an older adult pt w/fragile, easy to collapse veins
syringe & butterfly assemble and transfer to ETS tube
the needle should be inserted until when
change in resistance felt
what happens to mislabeled specimens
rejected by lab
when doing skin puncture to test WBC, RBC, glucose, and electrolytes, what tubes should be used
lavender and red
during inpatient care, when should you draw
after nurse attached wristband to pt
define ACTIVE CONSENT
parent gives permission for kid to get treatment
if a pt is unconscious in the ED, what kind of consent is it
implied
what is a complication from incorrect needle gauge
grossly hemolyzed specimen
iatrogenic anemia mostly affects who
hospitalized pts, very young, or critically ill
define IATROGENIC ANEMIA
anemia from repeated blood collection
too much blood draw puts the pt at risk for what
iatrogenic anemia
what temp should semen samples be stored and transported
37 degrees C/98.6 degrees F
when preparing a peripheral blood smear, how much blood and where should be put on slide
1 mm drop of blood half inch from edge of slide
purpose of blood smear
give information about number and shape of blood cells
what veins should be used for older adult or obese pts w/no accessible antecubital veins
dorsal veins
which blood results have priority
presurgical
what is a routine pt blood test
basal metabolic panal
what are first aid “to dos” for shock
- maintain open airway
- control bleeding
- keep victim warm until help arrives
who can discuss results of bloodwork w/pt
ordering physician
define ACCESSION NUMBER
number identifying specimen as long as it is in lab
what should be used to clean a puncture site
povidone iodine
what things fall under chain of custody
- drug screens
- forensic studies
- blood alcohol & paternity testing
what does it mean if a pt reports a sharp pain radiating down arm during venipuncture
nerve most likely hit
what should be done if you accidentally hit a nerve while doing a venipuncture
stop
why must the site for blood culture draws be disinfected thoroughly
prevent microbial contamination
why must alcohol must be allowed time to air dry
needs time for antiseptic action
what is the first step in first aid to control a hemorrhage
apply pressure
how long must a pt fast for before getting a metabolic panel done
at least 8 hours
what is the first step in blood collection
requisition (physician order)
collecting multiple specimens on a preemie causes what
iatrogenic anemia
cause: aplastic anemia
bone marrow abnormalities
if shipping specimens in hot whether, what should accompany the specimen
cold packs and biohazard label
how should lab results be sent to physician
in a marked envelope
when doing dermal samples, lavender top tubes do what
minimize platelet clumping and microclot formation
