10.18710/TRXVJUŁuczyński, DamianDamianŁuczyńskiNTNU – Norwegian University of Science and TechnologyLautridou, JackyJackyLautridouNTNU – Norwegian University of Science and TechnologyHjelde, AstridAstridHjeldeNTNU – Norwegian University of Science and TechnologyMonnoyer, RoxaneRoxaneMonnoyerNTNU – Norwegian University of Science and TechnologyEftedal, IngridIngridEftedalNTNU – Norwegian University of Science and Technology; Nord UniversityReplication Data for: Hemoglobin During and Following a 4-Week Commercial Saturation Dive to 200 mDataverseNO2021Medicine, Health and Life Sciencesacclimatizationdecompressionerythropoietinerythropoiesishelioxmild anemiahyperoxic saturationrelative hypoxiaEftedal, IngridIngridEftedalNord UniversityNord UniversityEftedal, IngridIngridEftedalNord UniversityNord University2021-05-192023-09-282018-08-01/2018-12-31Capillary HemoCue 201+ Hb10.3389/fphys.2019.01494462232313100text/plaintext/tab-separated-valuestext/plain1.1CC0 1.0<p>The dataset contains capillary hemoglobin data from 11 male commercial saturation divers, measured daily as g per dL on HemoCue 201+ portable devices before, during and after commercial heliox saturation dives to 200 meters depth while breathing 40-80 kPa O2 at depth, 21 kPa at surface.</p> Abstract: Commercial saturation divers must acclimatize to hyperbaric hyperoxia in their work environment, and subsequently readjust to breathing normal air when their period in saturation is over. In this study, we measured hemoglobin (Hb) during and following 4 weeks of heliox saturation diving in order to monitor anemia development and the time for Hb to recover post-saturation. Male commercial saturation divers reported their capillary blood Hb daily, before, and during 28 days of heliox saturation to a working depth of circa 200 m (n = 11), and for 12 days at surface post-saturation (n = 9–7), using HemoCue 201+ Hb devices. Hb remained in normal range during the bottom phase, but fell during the decompression; reaching levels of mild anemia (≤13.6 g/dl) the day after the divers’ return to the surface. Hb was significantly lower than the pre-saturation baseline (14.7 ± 1.1 g/dl) on the fifth day post-saturation (12.8 ± 1.8 g/dl, p = 0.028), before reverting to normal after 6–7 days. At the end of the 12-day post-saturation period, Hb was not statistically different from the pre-saturation baseline. The observed Hb changes, although significant, were modest. While we cannot rule out effect of other factors, the presence of mild anemia may partially explain the transient fatigue that commercial saturation divers experience post-saturation.The Research Council of Norway280425