Category 1
Where on the finger should capillary puncture by performed?
Toward the top of the finger, on the fleshy part to either side
point of care tests can use this kind of puncture
Capillary puncture
Blood Smear
examination of different blood cells under a microscope
21 Gauge
what size lancet used to fill a micro collection tube?
30 guage
what size lancet used when you need a single drop?
What common laboratory equipment can be used to create a peripheral blood smear?
Two Microscope Slides
Iatrogenic anemia
anemia caused by excessive blood draws
especially common in infants or patients in intensive care
how to measure blood volume in ml?
multiply weight in kg by 80
Oxygen carrying pigment in red blood cells
Hemoglobin
what is the most common way to test blood of infants?
capillary puncture/heel stick
What is the name of the infection that may be caused if a lancet strikes bone?
Osteomyelitis
why can coagulation studies not be done with capillary blood?
needs more blood
Jaundice
Excessive bilirubin. happens when liver not mature enough to clear bilirubin effectively
The percentage of a blood sample that is RBC's
Hemacrit
why do you perform capillary puncture quickly?
that way platelet clumping doesn't occur
testing done to look at blood cells count and reveals possible problems
peripheral blood smear
prothrombin time/international normalized ratio
tests blood clotting time
PT/INR
Why is the index finger not used for capillary collection?
it is usually calloused
How long should a capillary puncture site be warmed?
3-5 minutes
Infants held by a parent during a heel stick collection may experience less pain.
True
a condition that makes it impossible for babies to metabolize certain proteins
PKU (phenylketonuria)
This test will not yield a large enough specimen from a capillary collection.
Erythrocyte Sedimentation Rate
EDTA tubes
If no blood gas tests are ordered, which type of tube is filled first for capillary collections?
Perpendicular
At what angel should a blade-style lancet be positioned to cut against the patient's fingerprints?
Capillary collection is unlikely to be successful if the patient is
Dehydrated