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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Iron Supplementation and Iron Testing Questions?
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<blockquote data-quote="Nelson Vergel" data-source="post: 202354" data-attributes="member: 3"><p>I wish everyone measured their ferritin and not only their hematocrit before donating blood, as this study suggests. The US only uses hemoglobin since they can do it from a hand-held meter. If everyone on TRT knew their ferritin values before blood donations, many would find out that they should not do it. You lose about 30 ferritin points per donation.</p><p></p><p></p><h3>First results of a ferritin-based blood donor deferral policy in the Netherlands</h3><p></p><h3>BACKGROUND</h3><p>Whole blood donors are at risk of becoming iron deficient. To monitor iron stores, Sanquin implemented a new deferral policy based on ferritin levels, in addition to the traditional hemoglobin measurements.</p><p></p><h3>METHODS</h3><p>Ferritin levels are determined in every fifth donation, as well as in all first-time donors. Donors with ferritin levels <15 ng/mL (WHO threshold) are deferred for 12 months; those ≥15 and ≤30 ng/mL for 6 months. The first results were analyzed and are presented here.</p><p></p><h3>RESULTS</h3><p>The results show that 25% of women (N = 20151, 95% CI 24%-25%) and 1.6% of men (N = 10391, 95% CI 1.4%-1.8%) have ferritin levels ≤30 ng/mL at their first blood center visit. For repeat (non-first-time) donors, these proportions are higher: 53% of women (N = 28329, 95% CI 52%-54%) and 42% of men (N = 31089, 95% CI 41%-43%). After a 6-month deferral, in 88% of returning women (N = 3059, 95% CI 87%-89%) and 99% of returning men (N = 3736, 95% CI 98%-99%) ferritin levels were ≥15 ng/mL. After a 12-month deferral, in 74% of returning women (N = 486, 95% CI 70%-78%) and 95% of returning men (N = 479, 95% CI 94%-97%) ferritin levels increased to ≥15 ng/mL.</p><p></p><h3>CONCLUSION</h3><p><strong>Deferral of donors whose pre-donation ferritin levels were ≤30 ng/mL might prevent donors from returning with ferritin levels <15 ng/mL. This policy is promising to mitigate effects of repeated donations on iron stores.</strong></p><p></p><p><a href="https://onlinelibrary.wiley.com/doi/full/10.1111/trf.15906" target="_blank">https://onlinelibrary.wiley.com/doi/full/10.1111/trf.15906</a></p></blockquote><p></p>
[QUOTE="Nelson Vergel, post: 202354, member: 3"] I wish everyone measured their ferritin and not only their hematocrit before donating blood, as this study suggests. The US only uses hemoglobin since they can do it from a hand-held meter. If everyone on TRT knew their ferritin values before blood donations, many would find out that they should not do it. You lose about 30 ferritin points per donation. [HEADING=2]First results of a ferritin-based blood donor deferral policy in the Netherlands[/HEADING] [HEADING=2]BACKGROUND[/HEADING] Whole blood donors are at risk of becoming iron deficient. To monitor iron stores, Sanquin implemented a new deferral policy based on ferritin levels, in addition to the traditional hemoglobin measurements. [HEADING=2]METHODS[/HEADING] Ferritin levels are determined in every fifth donation, as well as in all first-time donors. Donors with ferritin levels <15 ng/mL (WHO threshold) are deferred for 12 months; those ≥15 and ≤30 ng/mL for 6 months. The first results were analyzed and are presented here. [HEADING=2]RESULTS[/HEADING] The results show that 25% of women (N = 20151, 95% CI 24%-25%) and 1.6% of men (N = 10391, 95% CI 1.4%-1.8%) have ferritin levels ≤30 ng/mL at their first blood center visit. For repeat (non-first-time) donors, these proportions are higher: 53% of women (N = 28329, 95% CI 52%-54%) and 42% of men (N = 31089, 95% CI 41%-43%). After a 6-month deferral, in 88% of returning women (N = 3059, 95% CI 87%-89%) and 99% of returning men (N = 3736, 95% CI 98%-99%) ferritin levels were ≥15 ng/mL. After a 12-month deferral, in 74% of returning women (N = 486, 95% CI 70%-78%) and 95% of returning men (N = 479, 95% CI 94%-97%) ferritin levels increased to ≥15 ng/mL. [HEADING=2]CONCLUSION[/HEADING] [B]Deferral of donors whose pre-donation ferritin levels were ≤30 ng/mL might prevent donors from returning with ferritin levels <15 ng/mL. This policy is promising to mitigate effects of repeated donations on iron stores.[/B] [URL]https://onlinelibrary.wiley.com/doi/full/10.1111/trf.15906[/URL] [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Blood Test Discussion
Iron Supplementation and Iron Testing Questions?
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