Indications: abdominal bleeding (especially in the gastrointestinal tract)

Preparation for the examination: the patient should bring a current laboratory test with them

Procedure of the examination:

• Consultation with the doctor to explain any uncertainties regarding the examination
• Blood sampling
• Marking of the erythrocytes with a radiopharmaceutical
• Reinjection of the labeled blood
• Taking several images up to 24 hours after injection
• Debriefing
• The findings are sent to the requesting doctor in writing as soon as possible

Radiopharmaceutical used: Tc-99m labeled autologous erythrocytes