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dried blood contamination

A 42-year-old member asked:
Dr. Michael Dugan
Specializes in Hematology
If this is a: urine sample then it suggests it was not collected with good sterile technique

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A 50-year-old member asked:
Dr. Donald Alves
23 years experience Emergency Medicine
Yes, common: As the blood dries and hemoglobin oxidizes, it will look darker red to brown to black.
A 22-year-old female asked:
Dr. Manuel Lopez diaz
27 years experience Emergency Medicine
Yes: There may be viruses and bacterial spores that may resist dryness.
A 35-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
That might happen.: Brown blood is older and deoxygenated.
A 20-year-old female asked:
Dr. Andrew Seibert
34 years experience Gastroenterology
Probably not: assuming you have no skin breaks yourself, the odds of catching something in this situation is very unlikely. It would be good to wash off well at the ... Read More
A 28-year-old member asked:
Dr. Andreas Kogelnik
20 years experience Internal Medicine
Yes: Yes, dried blood can carry infectious viruses and other pathogens. Universal precautions (gloves, handwashing) should always be used when handling bl ... Read More
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7 thanks
A 36-year-old member asked:
Dr. James Bates
35 years experience Oral and Maxillofacial Surgery
Yes: It is normal to have some dried blood on one's skin when one awakens from surgery. Attempts to clean the wound and the surrounding tissues and skin af ... Read More
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1 thank
A 22-year-old male asked:
Dr. Erin Robertson
18 years experience General Practice
Depends...: Totally depends on the pathogen. Encapsulated viruses generally last longer than enveloped viruses, and bacteria like Staph aureus (MRSA) lasts seemin ... Read More
A 21-year-old female asked:
Dr. Wayne Ingram
Specializes in Obstetrics and Gynecology
Were you on period?: If you weren't on your period then there was no problem.
A 30-year-old male asked:
Dr. Louise Andrew
A Verified Doctor answered
A US doctor answered Learn more
No: any germ that was in the blood was probably killed by the drying. Good idea though always to wear foot protection (at least flip flops) when scrubbin ... Read More

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