specimen collection Flashcards
Never draw out the syringe without removing first the tourniquet to avoid __
hematoma
Avoid prolonged application of tourniquet to avoid __
hemoconcentration
Do not extract blood from patients while they are receiving intravenous medication because these solutions may influence the __.
chemical analysis
Blood specimens obtained must be placed in appropriate containers for each specific test. The blood specimen collected with anticoagulants must be well mixed to prevent __
coagulation
collection priorities
routine samples
asap samples
stat samples
have the highest priority and are usually ordered from the emergency department
stat tests
are usually collected early in the morning but can be collected throughout the day during scheduled “sweeps” (collection times) on the floors or from outpatients
routine samples
-means “as soon as possible.” The response time for the collection of this test sample is determined by each hospital or clinic and may vary by laboratory tests.
ASAP
sample is to be collected, analyzed, and results reported immediately.
STAT
npo (non per orem); “nothing by mouth”
fasting sample
examples of timed samples
Glucose Tolerance Tests
2-Hour Oral Glucose Tolerance Test
Lactose Tolerance Test
what are the type of samples
fasting samples
timed samples
blood culture
composition of whole blood
Liquid portion of unclotted blood
With anticoagulant
Contains albumin, globulin and fibrinogen
The first step in learning to perform a venipuncture is knowledge of the __
needed equipment
advantage of evacuated tube system
Blood is collected directly into the evacuated tube, eliminating the need for transfer of specimens and minimizing the risk of biohazard exposure