Blood Testing at Entia

The investigators are recruiting healthy volunteers to donate 1-5 (depending on study visits. and donors will be notified upon invitation) finger prick blood samples or venous samples to Entia for the further development and testing of our blood analyser. The venous samples are taken by a registered nurse hired via a third party company. The results of the blood tests are not informed to the participants unless they explicitly ask for it.

Inclusion Criteria: Aged ≥ 21 years Apparently healthy Able to provide written informed consent Registered with a general practitioner (GP) Exclusion Criteria: Inadequate understanding of the English language (written and verbal) that would require a translator Been hospitalised within 90 days prior to their study visit Donated whole blood or plasma to a blood bank within the 90 days prior to the study visit Pregnant at the time of the study visit Breastfeeding at the time of the study visit History of vasovagal syncope following blood draw History or current diagnosis of the following conditions: Cancer Cardiovascular disease Chronic kidney disease or end-stage renal disease Bleeding disorder (including but not limited to Immune Thrombocytopenia (ITP), hemophilia, von Willebrand disease (VWD)) Blood clotting disorder (including but not limited to thrombophilia, antiphospholipid syndrome) G6PD deficiency Inflammatory bowel disease Myelodysplastic syndrome Ebola Tuberculosis HIV Hepatitis B or C Current diagnosis of Epstein-Barr Virus or Cytomegalovirus Current diagnosis of diabetes mellitus, unless controlled by diet alone OR participant has been taking the same dose of the same medication for 4 weeks or more and are feeling fit and well. Undergone organ transplantation Anemia, unless the participant is feeling fit and well (no dizziness, fatigue, shortness of breath etc)