Description of Hemoglobin Levels in Prospective Donors Over 46 Years Old at UDD PMI Jepara Regency

Blood donation is the process of taking part of blood from the body of a healthy person and given to people who need blood voluntarily (Ibrahim et al., 2021). Hemoglobin level examination is one of the donor selection checks to find out whether someone is successful or not to donate blood. A person can donate blood if the hemoglobin level shows a result of 12.5 g / dL-17 g / dL. The factor causing the rejection of most blood donations in Indonesia is due to low hemoglobin levels (Putri Afrianti, 2022). The case of high Hb levels is also one of the factors that causes rejection in donor selection (Nuraini Kwarta, 2021). The levels and activity of substances in the blood can be affected by age. Neonates have higher Hb levels than adults due to loss of active tissue mass and many people whose function has been reduced, resulting in reduced Hb levels (Paramahita et al., 2020). The purpose of this study was to measure hemoglobin levels in prospective donors aged more than 46 years at UDD PMI Jepara Regency. This type of research uses a quantitative approach with a cross-sectional descriptive study research model taken from the SIMDONDAR database. Based on the results of the study, it was found that the majority of prospective donors showed normal hemoglobin levels as many as 480 prospective donors (94.86%), and more prospective donors who had blood type O (+) as many as 187 prospective donors (36.96%), most prospective donors were male as many as 342 prospective donors (67.59%), and the majority of prospective donors were declared to have passed the donor selection as many as 480 prospective donors (94.86%).