This study examined the degree of detectable hemolysis in- blood
specimens _as-pirated with needles'p~ :small and 1.arge bore_ size. A quasiexperimental
design was used to test the resea;ch hypothesis that blood .
specimens. aspira~ed_~tth a 22~gauge_needle will have a higher degree of
-detectable-hemolysis than blood specimens asp:irated .with a 20-gauge
needle. Data collectionconsisted of aspirating from each subject
- (n=31) one blood-·speci~en--wi-th a 22-gauge-needle and-one-:.blood specimen·: _
_, . ,.,. : . . . . ' . .
with a 20~gauge ·needle~- .. Th~- -plasma -hemoglobin df each specimen was .
. . . . . '• .
mea~ured and data were 'analyzed using the independent t~test~ The -
results- indicated- that the mean difference in the plasma hemogl_obin·
. ' . . . . . -
·between the two blood specimens w·as not stattstically · si'gnif1cant', -t-hus
·· .. the research hypothesis was not supported .. Thefindi~gs sug\Jested that
. . '··
heme lysis was not influenced by the bore si z~ of the needle us.ed during
blood specimen acq-uisition.
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