Which of these are examples of errors that could occur when performing a hemoglobin determination?

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All of these situations may cause inaccurate hemoglobin results. If a specimen is inadequate in volume, the result may be erroneously decreased. Excessive pressure at the puncture site may result in excess fluid in the specimen, which could change the result. The first drop of blood must be wiped away before the sample is collected because this drop often includes excess fluid from the tissues surrounding the capillary puncture site, which could affect the result.

Which of These Are Examples of Errors That Could Occur