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When blood is taken from a line, a small amount is usually drawn off and thrown away first. How much is needed has never been set by a guideline that could be read, and the only recent study was in intensive care, not in people with ports having chemotherapy.
The gap. No guideline read for the blood sampling protocol sets a discard volume; the INS Standards, which do, could not be read. An intensive-care study in 105 patients found a 2 ml discard gave results agreeing with venepuncture for electrolytes and blood counts except white cells (abstract), and noted that no consensus exists on the volume. People with cancer have bloods taken from their lines before nearly every cycle.
Shares Peripherally inserted central catheters (PICC lines), Toxicity and quality of life are undervalued and the tags protocol-upgrade, upgrade:untested.
Shares Toxicity and quality of life are undervalued and the tags protocol-upgrade, upgrade:untested.
Shares Toxicity and quality of life are undervalued and the tags protocol-upgrade, upgrade:untested.
Shares the tags protocol-upgrade, upgrade:untested.
Shares the tags protocol-upgrade, upgrade:untested.
Shares the tags protocol-upgrade, upgrade:untested.
Shares the tags protocol-upgrade, upgrade:untested.
Shares the tags protocol-upgrade, upgrade:untested.
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