Ask the blood type the hospital needs first so as to arrange the number of family members.
Let family members know about the knowledge of voluntary blood donation, find family members who meet the conditions of voluntary blood donation, and donate blood to blood stations. Inform the blood station before donating blood, help each other donate blood, and ask the blood station staff about the specific process. After the blood donation is completed, the next operation can be carried out according to the tips of the blood station staff.
I wish my family a speedy recovery and discharge.
Personal suggestions for reference. If you have any questions, ask them.