Kidney infections. Kidney infections (pyelonephritis) can occur when bacteria enter your kidneys from your bloodstream or move up from your ureters to your kidney(s). Signs and symptoms are often similar to bladder infections, though kidney infections are more likely to cause fever and flank pain.
Aspirin is fine to take if you are donating whole blood or double red cells.To be eligible to donate platelets, you cannot take any Aspirin, Ibuprofen or drugs with aspirin-like compounds for 48 hours before your donation.ed blood cells are the oxygen carrying cells. They can take two weeks or longer to fully return to normal. You can donate platelets (apheresis donation) every two weeks â up to 24 times in 12 months. Platelet and plasma components are regenerated in the body more quickly than red cells.
1 Remember that you can always donate again and that in fact, plasma collection centers encourage committed donors. 2  Some centers may let you come in 48 hours later or twice a week, while others limit donations to once a month. 3  Check with the center to determine the required length of time between visits.