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Cards In This Set
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Why does hemolysis occur more frequently during dermal punctures?
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*Excessive squeezing of the puncture site ("milking")
*Newborns have increased numbers of RBCs and RBC fragility *Residual alcohol at the site *Vigorous mixing of micro-collection tubes |
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Capillary blood is a mix of and most closely resembles .
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Capillary blood is a mixture of venous blood and arterial blood and most closely resembles arterial blood.
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Warming the site before a dermal puncture increases what?
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Blood flow by as much as seven-fold.
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The concentration of glucose is in blood obtained from dermal puncture.
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Higher, glucose is more concentrated in blood obtained from dermal puncture.
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Concentrations of potassium, total protein, and calcium are in blood collected from dermal puncture.
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Lower.
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If a dermal puncture is performed, this factor should be .
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Documented on the requisition form.
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Define ecchymoses
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Bruising
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The CLSI (Clinical and Laboratory Standards Institute) recommends that the incision depth should
in a device for heelsticks. |
Not exceed 2.0 mm.
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Where is the vascular area of the skin?
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At the juncture between the dermis and subcutaneous tissue.
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Capillary tubes are also commonly referred to as .
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Microhematocrit tubes
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Microhematocrit tubes that are heparinized are and plain tubes are .
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1) Red, 2) Blue
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Microcollection tubes collect about and are color coded .
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1) 600 microliters, 2) in the same way as evacuated tubes
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A primary danger in dermal puncture is , which can can .
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1) Accidental contact with the bone, 2) infection (osteomyelitis) or inflammation (osteochondritis).
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The primary dermal puncture sites are where?
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The heel and distal segments of the third and fourth fingers.
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The heel is used for dermal punctures on because it contains more tissue than fingers, but is not calloused.
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Infants younger than 1 year old.
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