The use of fine gauge needles during collection may cause damage to the blood cells.The laboratory performed a study using fine gauged needles and confirmed that an increased plt value was generated when using this collection technique.According to the sysmex analyzer instructions for use, "if any of the following is present, the system may erroneously report a high platelet count: microerythrocytes, possibility of fragmented rbcs, fragmented leukocytes." a roche field service engineer was dispatched to verify analyzer performance.The se performed routine maintenance and determined that the analyzer performed within specification.No analyzer deficiency was identified.
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The sample was collected using a syringe and fine gauge needle.Analysis was performed on (b)(6) 2017, time unknown, and the user stated that a plt value of 70 x 10^9/l was reported to the clinician.A bone marrow aspiration procedure was performed.The reason for the procedure was not provided.It was reported that the patient bled more than normal during the procedure.The clinician requested a repeat analysis, which generated a plt value of 5 x 10^9/l.No other patient information was provided.
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